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Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Service
Workshop Manual
Audi TT 1999 ➤
General body repairs, Interior
Edition 07.2005
Service Department. Technical Information
Page 2
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Service
List of Workshop Manual Repair GroupsList of Workshop Manual
Repair GroupsList of Workshop Manual Repair Groups
Re pa ir G ro up
68 - Interior equipment
69 - Passenger protection
70 - Trim, insulation
72 - Seat frames
74 - Seat - padding, covers
Technical information should always be available to the foremen and mechanics, because their
careful and constant adherence to the instructions is essential to ensure vehicle road-worthiness and
safety. In addition, the normal basic safety precautions for working on motor vehicles must, as a
matter of course, be observed.
All rights reserved.
No reproduction without prior agreement from publisher.
Copyright © 2010 Audi AG, Ingolstadt A0057005520
Page 3
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
Contents
68 - Interior equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1 Storage compartments/trim panels and covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Removing and installing glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Removing and installing glove box trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 Removing and installing glove box lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Removing and installing glove box locking mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.5 Removing damping mechanism for glove box lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.6 Removing right dash panel end trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.7 Removing driver's storage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.8 Removing left dash panel end trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.9 Removing centre console trim frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.10 Removing centre console grab handles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.11 Removing and installing mobile phone cradle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.12 Removing and installing mounting plate for mobile phone cradle . . . . . . . . . . . . . . . . . . . . 9
1.13 Removing and installing cup holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.14 Removing and installing cover panel at rear centre console . . . . . . . . . . . . . . . . . . . . . . . . 10
1.15 Removing and installing rear centre console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.16 Removing rear centre console storage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.17 Removing lid for rear centre console storage compartment . . . . . . . . . . . . . . . . . . . . . . . . 12
1.18 Removing rear centre console rear storage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.19 Removing handbrake trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.20 Removing handbrake lever button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.21 Removing gearshift cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.22 Removing gearshift cover console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.23 Removing and installing footwell vent trim and footwell vent . . . . . . . . . . . . . . . . . . . . . . . . 15
1.24 Removing and installing centre console masking profile . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1.25 Removing and installing front centre console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1.26 Removing radio cover panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1.27 Removing and installing front ashtray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1.28 Removing and installing front ashtray light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1.29 Removing and installing cigarette lighter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2 Interior mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.1 Removing and installing interior mirror with fixed base . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.2 Removing interior mirror (automatic anti-glare mirror, interior mirror with compass) . . . . . . 21
2.3 Checking operation of automatic anti-glare interior mirror . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.4 Calibrating interior mirror with compass (USA only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.5 Bonding in retainer plate for interior mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
69 - Passenger protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1 Seat belt safety regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1.1 Safety regulations for handling pyrotechnic belt tensioners . . . . . . . . . . . . . . . . . . . . . . . . 29
1.2 Disposal of pyrotechnic belt tensioners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
2 Coupé seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.1 Seat belt anchorage points (exploded view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.2 Removing and installing three-point seat belt with belt tensioner . . . . . . . . . . . . . . . . . . . . 32
2.3 Removing B-pillar brace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.4 Outer floor panel anchorage point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
2.5 Buckle anchorage point - standard seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
2.6 Buckle anchorage point - bucket seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
2.7 Belt guide fitting anchorage point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
2.8 Removing and installing rear three-point seat belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2.9 Removing webbing cover panel and webbing guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2.10 Centre floor panel anchorage points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Contents i
Page 4
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
3 Roadster seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.1 Seat belt anchorage points (exploded view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.2 Removing and installing three-point seat belt with belt tensioner . . . . . . . . . . . . . . . . . . . . 39
3.3 Outer floor panel anchorage point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.4 Belt guide fitting anchorage point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.5 Belt guide fitting bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4 Checking seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.1 Checking webbing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.2 Checking inertia reel (locking action) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.3 Visual inspection of buckle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.4 Functional test of buckle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.5 Checking guide fittings and latch plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.6 Checking attachment components and anchorage points . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.7 Checking child seat restraint function for additional child seats (not for driver's seat belt)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
5 Airbag safety regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.1 General safety regulations for handling airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.2 Additional safety precautions for side airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
5.3 Additional safety regulations for head airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
5.4 Replacing airbag units following an accident . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
5.5 Checking attachment components following an accident . . . . . . . . . . . . . . . . . . . . . . . . . . 50
5.6 Accident not involving airbag triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
5.7 Disposal of pyrotechnic airbag units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6 Servicing airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
6.1 Exploded view of fitting locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
6.2 Removing and installing airbag control unit (J 234) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
7 Servicing driver's airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
7.1 Removing and installing driver's airbag unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
7.2 Removing and installing steering wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
7.3 Removing and installing coil connector with slip ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
8 Servicing front passenger's airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
8.1 Removing and installing front passenger's airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
8.2 Removing and installing key switch for front passenger's airbag . . . . . . . . . . . . . . . . . . . . 58
9 Servicing side airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
9.1 Removing and installing side airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
9.2 Unplugging connector for side airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
9.3 Disconnecting side airbag cable from seat pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
9.4 Cable routing at fitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
9.5 Position of fasteners at backrest frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
9.6 Fitting conduit on side airbag cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
10 Servicing airbag crash sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
10.1 Removing and installing lateral acceleration sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
11 Rollover bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
11.1 Removing and installing rollover bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
11.2 Removing and installing rollover bar cross member . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
11.3 Removing rollover bar flange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
12 Isofix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
12.1 Removing and installing front Isofix holder (front passenger's seat) . . . . . . . . . . . . . . . . . . 72
12.2 Service installation of front Isofix holder (front passenger's seat) . . . . . . . . . . . . . . . . . . . . 72
12.3 Removing and installing rear Isofix holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
70 - Trim, insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
1 Front door trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
1.1 Exploded view of fitting locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
ii Contents
Page 5
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
1.2 Removing and installing front door trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
1.3 Removing door handle and switch trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
1.4 Removing and installing driver's window lifter switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
1.5 Removing and installing front passenger's window lifter switch . . . . . . . . . . . . . . . . . . . . . . 76
1.6 Removing mirror adjustment switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
1.7 Removing and installing sound absorber for front door trim . . . . . . . . . . . . . . . . . . . . . . . . 77
1.8 Exploded view of door trim cable routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
1.9 Removing and installing cable for anti-theft alarm indicator . . . . . . . . . . . . . . . . . . . . . . . . 78
1.10 Removing and installing treble loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
1.11 Removing bass loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
1.12 Removing loudspeaker trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
1.13 Removing interior door handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
1.14 Removing and installing hinged pocket unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
2 Dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
2.1 Exploded view of fitting locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
2.2 Removing dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
2.3 Dash panel operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
2.4 Removing switch module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
2.5 Removing “side window” defroster vent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
3 Removing and installing central tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
3.1 Exploded view of fitting locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
3.2 Removing and installing dash panel central tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
3.3 Removing and installing central tube retainer (Coupé) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
3.4 Removing and installing central tube retainer (Roadster) . . . . . . . . . . . . . . . . . . . . . . . . . . 95
4 Coupé roof trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
4.1 Removing and installing moulded headliner and sun visors . . . . . . . . . . . . . . . . . . . . . . . . 96
4.2 Removing and installing sun visors (Coupé) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
5 Coupé trim panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
5.1 Removing and installing upper A-pillar trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
5.2 Removing and installing lower A-pillar trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
5.3 Removing A-pillar sound absorber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
5.4 Removing and installing foot rest and foot rest bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
5.5 Removing sill mouldings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
5.6 Removing and installing upper C-pillar trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
5.7 Roof frame trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
5.8 Removing and installing rear cross panel trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
5.9 Removing and installing rear side trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
5.10 Removing storage compartment and cover at rear side trim . . . . . . . . . . . . . . . . . . . . . . . . 105
5.11 Removing and installing shaft for rear side trim cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
5.12 Luggage compartment side trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
5.13 Removing luggage compartment floor lining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
5.14 Removing and installing tailgate trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
5.15 Separating tailgate trim panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
5.16 Removing and installing floor covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
6 Roadster trim panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
6.1 Removing and installing upper A-pillar trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
6.2 Removing and installing sun visor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
6.3 Removing and installing roof frame trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
6.4 Removing sill mouldings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
6.5 Removing and installing back panel centre trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
6.6 Removing and installing cover at back panel centre trim . . . . . . . . . . . . . . . . . . . . . . . . . . 119
6.7 Removing and installing centre loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
6.8 Back panel side trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
6.9 Back panel cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
6.10 Removing and installing loudspeaker assembly mount on vehicles with no CD changer . . 122
Audi TT 1999 ➤
Contents iii
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with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
6.11 Removing and installing loudspeaker assembly mount on vehicles with CD changer . . . . 123
6.12 Removing and installing centre storage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
6.13 Removing and installing left storage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
6.14 Removing and installing right storage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
6.15 Front convertible top compartment trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
6.16 Convertible top compartment trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
6.17 Convertible top compartment trim support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
6.18 Removing and installing wind deflector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
6.19 Moving wind deflector panel by hand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
6.20 Removing and installing wind deflector motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
6.21 Removing and installing wind deflector toothed belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
6.22 Removing and installing wind deflector threaded rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
6.23 Removing and installing wind deflector panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
6.24 Removing and installing rear wind deflector cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
6.25 Removing and installing wind deflector trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
6.26 Luggage compartment side trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
6.27 Luggage compartment side trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
6.28 Removing luggage compartment floor lining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
6.29 Removing and installing rear cross panel trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
6.30 Removing and installing boot lid lock cover panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
6.31 Removing and installing floor covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
72 - Seat frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
1 Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
1.1 Removing front seat runner cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
1.2 Removing and installing seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
1.3 Unplugging connector for side airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
1.4 Removing and installing front seat backrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
1.5 Removing spring cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
1.6 Removing and installing seat cushion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
1.7 Removing height adjustment handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
1.8 Removing seat frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
1.9 Removing tubular mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
1.10 Removing front left/right adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
1.11 Removing seat side trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
1.12 Removing handwheel and release handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
1.13 Removing fitting trim panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
1.14 Removing height adjustment unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
1.15 Removing Bowden cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
1.16 Removing connector holder and connector holder mount . . . . . . . . . . . . . . . . . . . . . . . . . . 156
1.17 Removing runner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
1.18 Removing operating rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
1.19 Adjusting operating rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
1.20 Removing gas-filled strut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
1.21 Removing side cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
1.22 Removing backrest cover panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
1.23 Removing and installing head restraints (Roadster) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
2 Front bucket seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
2.1 Removing and installing seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
2.2 Side airbag terminating resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
2.3 Removing and installing front seat pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
3 Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
3.1 Removing and installing seat bench . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
3.2 Removing and installing rear seat backrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
3.3 Removing latch trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
3.4 Removing reinforcing element from latch trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
iv Contents
Page 7
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
3.5 Removing rear seat latch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
3.6 Removing release handle with moulding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
3.7 Removing rear seat inner hinge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
3.8 Removing rear seat outer hinge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
74 - Seat - padding, covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
1 Front seat covers and padding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
1.1 Removing and installing cover and padding for seat cushion . . . . . . . . . . . . . . . . . . . . . . 173
1.2 Detaching seat cover from padding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
1.3 Removing and installing backrest cover and padding . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
1.4 Detaching backrest cover from padding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
1.5 Removing and installing seat heating element (bonded) . . . . . . . . . . . . . . . . . . . . . . . . . . 177
1.6 Voltage values at seat heating potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
1.7 Removing and installing backrest heating element (bonded) . . . . . . . . . . . . . . . . . . . . . . . . 177
1.8 Removing and installing head restraint cover and padding . . . . . . . . . . . . . . . . . . . . . . . . 178
2 Front bucket seat covers and padding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
2.1 Removing and installing cover and padding for seat pan . . . . . . . . . . . . . . . . . . . . . . . . . . 179
3 Rear seat covers and padding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
3.1 Removing and installing cover and padding for seat bench . . . . . . . . . . . . . . . . . . . . . . . . 182
3.2 Removing and installing split backrest cover and padding . . . . . . . . . . . . . . . . . . . . . . . . . . 183
3.3 Removing webbing trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Contents v
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Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
vi Contents
Page 9
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
68 – Interior equipment
1 Storage compartments/trim panels
and covers
1.1 Removing and installing glove box
1 - Glove box
♦ Removing
– Unclip dash panel end
trim ⇒ page 4 .
– Unplug connector for
glove box light
⇒ page 2
– Unscrew bolts on side
⇒ page 2
– Unscrew bolt -2-.
– Open glove box lid and
unscrew bolts -3- (3x).
– Pull mounting frame
outwards to side.
– Take out glove box
downwards.
– Unplug connector to key
switch for front pas‐
senger's airbag
⇒ page 2
– Remove front passeng‐
er's airbag deactivation
switch ⇒ page 58 .
♦ Installing
– Pull mounting frame
outwards to side.
Audi TT 1999 ➤
– Insert glove box on inner
side first.
– Perform remaining in‐
stallation operations in
reverse order of remov‐
al.
2 - Bolt (1x)
❑ Tightening torque 3.5
Nm
3 - Bolts (3x)
❑ Tightening torque 3.5 Nm
4 - Dash panel
1. Storage compartments/trim panels and covers 1
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Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
Unplug glove box connector and unscrew bolts on side
– Unplug connector -2-.
– Unscrew bolts -3- (3x).
Unplugging connector for front passenger's airbag key switch
– Press release mechanism -3- and pull connector -2- out of
switch -1-.
1.2 Removing and installing glove box trim
– Unscrew bolt -1- (6x), tightening torque 1 Nm.
– Pull out cover panel -2- in direction of arrow.
– Unscrew bolt -1- (2x), tightening torque 2 Nm.
– Unscrew nut -2- (3x), tightening torque 1 Nm.
– Detach trim.
2 Rep. Gr.68 - Interior equipment
Page 11
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General body repairs, Interior - Edition 07.2005
1.3 Removing and installing glove box lock
♦ Removing:
– By carefully twisting screwdriver, prise out glove box opening
mechanism -1- at lug -2-.
Note
Lock cylinder is only to be removed with key inserted.
♦ Removing:
– Use screwdriver to carefully prise out retainers -1- (4x) in di‐
rection of arrow and at the same time press lock cylinder -2in direction of arrow.
♦ Installing:
– With key inserted, press in lock cylinder until all retainers en‐
gage.
♦ Installing:
Audi TT 1999 ➤
– Position glove box opening mechanism -1- such that mounts
-2- fit into retainer tabs -5- (2x) and spring -3- fits into pin -4-.
– Carefully press glove box opening mechanism -1- into glove
box lid until both retainer tabs -5- engage.
1.4 Removing and installing glove box lock‐
ing mechanism
– Unscrew bolt -1- (6x), tightening torque 1 Nm.
– Pull out cover panel -2- in direction of arrow.
1. Storage compartments/trim panels and covers 3
Page 12
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Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
– Use screwdriver to prise out linkage -1- (2x) at guides -2-.
– Pull linkage -1- (2x) inwards at -3-.
– On installation, insert linkage -1- (2x) at toothed wheel such
that projection at -3- is approx. 5 mm.
1.5 Removing damping mechanism for glove box lid
– Squeeze retainers -2- (2x).
– Take out damping mechanism -1-.
1.6 Removing right dash panel end trim
– Use flat screwdriver to unclip right dash panel end trim -1-.
4 Rep. Gr.68 - Interior equipment
Page 13
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with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
1.7 Removing driver's storage compartment
1 - Driver's storage compart‐
ment
♦ Removing
– Unclip left dash panel
end trim ⇒ page 6 .
– Unfasten bonnet cable
in passenger compart‐
ment ⇒ Rep. Gr. 55 .
– Unscrew bolts -2- (3x).
– Unscrew bolts on side
⇒ page 5
– Pull driver's storage
compartment -1- out of
clips -4- (3x).
– Pull mounting frame
outwards to side.
– Set down driver's stor‐
age compartment.
– Unplug connector to ro‐
tary light switch
⇒ page 6
– Squeeze fasteners -5-
(3x) and unclip diagnos‐
tic connector -6-.
♦ Installing
– Guide holder -3- into
mount at pedals.
Audi TT 1999 ➤
2 - Bolts (3x)
3 - Holder
4 - Clips
5 - Fasteners
6 - Diagnostic connector
Unscrewing bolts on side
– Unscrew bolts -2- (3x).
1. Storage compartments/trim panels and covers 5
Page 14
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Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
Unplugging rotary light switch connector
– Press retainer tabs -arrows- and unplug connectors -1- and
-2-.
1.8 Removing left dash panel end trim
– Use screwdriver to unclip left dash panel end trim -1-.
1.9 Removing centre console trim frame
1.9.1 Without Airbag OFF lamp
– Unfasten clips -4- of centre console trim frame -3- from centre
console -1-.
– Detach centre console trim frame -3- to rear.
– On installation, guide lugs -2- into mounts -6-.
1.9.2 With Airbag OFF lamp
– Unfasten clips -4- of centre console trim frame -3- from centre
console -1-.
– Move centre console trim frame -3- slightly to rear.
6 Rep. Gr.68 - Interior equipment
Page 15
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General body repairs, Interior - Edition 07.2005
– Use screwdriver to prise out retainer tabs -2- (2x).
– Take Airbag OFF lamp -1- out of centre console trim frame
-3-.
– On installation, guide lugs -2- into mounts -6-.
Audi TT 1999 ➤
1. Storage compartments/trim panels and covers 7
Page 16
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Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
1.10 Removing centre console grab handles
1 - Centre console grab han‐
dles
❑ Unscrew bolts -2- (8x).
❑ Take out centre console
grab handles -1-.
2 - Bolts (8x)
❑ Tightening torque 10
Nm
8 Rep. Gr.68 - Interior equipment
Page 17
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General body repairs, Interior - Edition 07.2005
1.11 Removing and installing mobile phone cradle
– Unscrew bolts -2- (2x).
– Tightening torque 2.3 Nm
– Detach cradle -1-.
3 - Grommet for mobile phone cradle
Audi TT 1999 ➤
1.12 Removing and installing mounting plate for mobile phone cradle
– Remove rear centre console ⇒ page 11 .
– Unscrew nut -2- (3x).
– Take out mounting plate -1-.
3 - Anti-theft alarm sensor (Roadster only)
1.13 Removing and installing cup holder
– Open cover panels -2- (2x).
– Use screwdriver to twist open catch -3- (2x).
– Detach cup holder -1-.
1. Storage compartments/trim panels and covers 9
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Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
1.14 Removing and installing cover panel at rear centre console
♦ Cover panel beneath handbrake lever
– Prise up cover panel beneath handbrake lever -3- at front.
– Pull cover panel beneath handbrake lever -3- in direction of
arrow out of centre console -1-.
♦ Rear cover panel
– Lift off rear cover panel -2-.
♦ Rear cover panel with mobile phone connector
– Lift off rear cover panel -1-.
– Cover panel -1- can be moved downwards to remove centre
console.
– Unscrew bolts -5- (2x). Tightening torque 0.8 Nm
– Take connector -6- out of holder -3-.
2 - Connector to adapter cradle
4 - Holder bolts, tightening torque 0.8 Nm
10 Rep. Gr.68 - Interior equipment
Page 19
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
1.15 Removing and installing rear centre console
1 - Rear centre console
❑ Removing
❑ Fully apply handbrake.
❑ Remove cover panels at
centre console
⇒ page 10 .
❑ Unscrew bolts -2- (2x).
❑ Remove grab handles
at centre console
⇒ page 8 .
❑ If necessary, prise out
caps -8- to facilitate re‐
moval.
❑ Unscrew bolts -7- (2x).
❑ Pull apart footwell vent
trim panels.
❑ Pull apart rear centre
console -1- at mounts
-5-.
❑ Lift rear centre console
-1- at rear seat over rear
seat.
❑ Pull out rear centre con‐
sole -1- to rear beneath
footwell vent trim pan‐
els.
❑ Take out rear centre
console -1- to front over
handbrake lever.
❑ Turn rear centre con‐
sole -1- and unplug con‐
nectors -6-, -9- and
-10-.
❑ Installing
❑ Slide rear centre con‐
sole -1- beneath footwell vent trim panels.
2 - Bolts (2x)
❑ Tightening torque 3.5 Nm
3 - Storage compartment
4 - Central locking switch
5 - Mounts (4x)
6 - Connectors for switches in centre console (3x)
7 - Bolts (2x)
❑ Tightening torque 3.5 Nm
Audi TT 1999 ➤
8 - Caps (2x)
9 - Connector to central locking switch -4-
10 - Connector for Airbag OFF lamp
1. Storage compartments/trim panels and covers 11
Page 20
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
1.16 Removing rear centre console storage compartment
1 - Storage compartment
❑ Open lid of storage com‐
partment -1- slightly.
❑ Remove switch console
-4-.
❑ Unplug connectors -3-
(3x).
❑ Use screwdriver to re‐
lease retainer tabs -2(2x).
❑ Use flat screwdriver to
press down centre catch
(between retainer tabs
-2-).
2 - Retainer tabs
3 - Connector (3x)
4 - Switch console
❑ Unclip switch console
-4- at top.
❑ Unplug connectors -3-
(3x).
1.17 Removing lid for rear centre console storage compartment
Note
Centre console storage compartment is shown from underneath.
– Use screwdriver -3- to prise lid -1- off storage compartment
-2-.
12 Rep. Gr.68 - Interior equipment
Page 21
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
1.18 Removing rear centre console rear stor‐
age compartment
– Use screwdriver to prise out storage compartment -1- at fas‐
teners -2-.
– Unplug connectors.
1.19 Removing handbrake trim
– Apply handbrake.
– Remove handbrake lever button ⇒ page 13 .
– Unscrew bolt -arrow-.
– Detach handbrake lever trim -1- in direction of arrow.
Audi TT 1999 ➤
1.20 Removing handbrake lever button
♦ Removing:
– With handbrake -3- released, carefully tilt handbrake lever
button -1- upwards.
♦ Installing:
– Guide handbrake lever button -1- with fasteners -2- into
mounts -4-.
– Carefully press handbrake lever button -1- onto handbrake
lever -3-.
1.21 Removing gearshift cover
– Twist off gear stick knob -1-.
– Unscrew bolts -2- (8x).
– Tightening torque 4 Nm
– Detach mounting frame -3- and trim -4-.
– On installation, pay attention to pin for front left locking ele‐
ment.
1. Storage compartments/trim panels and covers 13
Page 22
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
1.22 Removing gearshift cover console
– Remove rear centre console ⇒ page 11 .
– Twist off gear stick knob.
– Unscrew bolts -2- (4x). Tightening torque 4 Nm
– Detach gearshift cover console -1- over gear lever -3-.
14 Rep. Gr.68 - Interior equipment
Page 23
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
1.23 Removing and installing footwell vent trim and footwell vent
1 - Right footwell vent trim
♦ Removing
– Prise out caps -7-.
– Unscrew bolts -8- (2x).
– Pull out footwell vent
trim -1- to rear.
♦ Installing
– Make sure retainer -6-
engages in dash panel.
– Engage right footwell
vent trim -1- and left
footwell vent trim -3- in
centre.
2 - Footwell vent
♦ Removing
♦ Right footwell vent trim -1-
and left footwell vent trim
-3- removed
– Pull out footwell vent
-2- in direction of arrow.
♦ Installing
– Press in footwell vent
3 - Left footwell vent trim
♦ Removing
– Prise out cap -5-.
– Unscrew bolts -4- (2x).
♦ Installing
– Engage right footwell
-2- until it engages.
vent trim -1- and left
footwell vent trim -2- in
centre.
4 - Bolts (2x)
❑ Tightening torque 3.5 Nm
5 - Cap
6 - Retainer
7 - Caps (2x)
8 - Bolts (2x)
❑ Tightening torque 3.5 Nm
1. Storage compartments/trim panels and covers 15
Page 24
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
1.24 Removing and installing centre console masking profile
1 - Centre console masking
profile
❑ Remove grab handles
at centre console
⇒ page 8 .
❑ Remove front ashtray
⇒ page 18 .
❑ Remove radio ⇒ Rep.
Gr. 91 .
❑ Unscrew bolts -2- (3x).
❑ Unclip centre console
masking profile -1-.
2 - Bolts (3x)
❑ Tightening torque 1.5
Nm
16 Rep. Gr.68 - Interior equipment
Page 25
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
1.25 Removing and installing front centre console
1 - Front centre console
♦ Removing
– Remove glove box
⇒ page 1 .
– Remove driver's stor‐
age compartment
⇒ page 5 .
– Remove grab handles
at centre console
⇒ page 8 .
– Remove front ashtray
⇒ page 18 .
– Remove centre console
masking profile
⇒ page 16 .
Audi TT 1999 ➤
– Remove air conditioner
control panel/heater
controls. ⇒ Rep. Gr. 87
– Unscrew bolts -2- (4x).
2 - Bolts (4x)
❑ Tightening torque 3.5
Nm
1. Storage compartments/trim panels and covers 17
Page 26
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
1.26 Removing radio cover panel
1 - Radio cover panel
❑ Remove radio. ⇒ Rep.
Gr. 91
❑ Remove masking profile
⇒ page 16 .
❑ Use screwdriver -3- to
press up retainer tabs
-2- (2x) and pull out ra‐
dio flap -1-.
2 - Retainer tabs
3 - Screwdriver
1.27 Removing and installing front ashtray
– Open front ashtray.
18 Rep. Gr.68 - Interior equipment
Page 27
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
– Unscrew bolt -1-, tightening torque 2 Nm.
– Pull ashtray slightly forwards and down in direction of arrow at
tabs -2-.
– Unplug connectors -1- and -2-.
– On installation, guide both rubber lugs -3- (2x) into mounts
-4- (2x).
Audi TT 1999 ➤
1.28 Removing and installing front ashtray light
– Remove front ashtray ⇒ page 18 .
– Unclip connector -1-.
– Use screwdriver to press ashtray light -2- to rear.
– Unfasten cables at tab -3-.
– Unclip cigarette lighter light -5- at tab -4-.
– Take out cigarette lighter light -5-.
1.29 Removing and installing cigarette lighter
– Remove front ashtray ⇒ page 18 .
1. Storage compartments/trim panels and covers 19
Page 28
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
– Press down cigarette lighter -1- at lug -2-.
– Take out cigarette lighter -1- to front.
– By pressing retainer tabs -2-, disconnect cigarette lighter -3-
from light ring -1-.
20 Rep. Gr.68 - Interior equipment
Page 29
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
2 Interior mirror
2.1 Removing and installing interior mirror with fixed base
♦ Removing:
– On disassembly, turn mirror -1- through 60... 90° -arrows B-
until locking spring is disengaged and detach mirror
-arrow A-.
♦ Installing:
Audi TT 1999 ➤
– On assembly, fit mirror -1- at an angle of 60... 90° to attach‐
ment position -arrow A- and turn -arrows B- until locking spring
engages.
2.2 Removing interior mirror (automatic an‐
ti-glare mirror, interior mirror with com‐
pass)
♦ Removing:
2. Interior mirror 21
Page 30
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with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
– Unclip cable duct cover -3-.
– Take connector out of locator and unplug.
Note
Do not turn by way of cable duct -2-.
– On disassembly, turn mirror -1- through 60... 90° -arrows B-
until locking spring is disengaged and detach mirror
-arrow A-.
♦ Installing:
Note
Do not turn by way of cable duct -2-.
– On assembly, fit mirror -1- at an angle of 60... 90° to attach‐
ment position -arrow A- and turn -arrows B- until locking spring
engages.
2.3 Checking operation of automatic antiglare interior mirror
Note
♦
Interior mirror fitted
♦
Ignition on
♦
Reverse gear not engaged
2.3.1 Test sequence
– Cover (or mask) front of photosensor.
– Aim light source (torch) at back of photosensor.
♦ Interior mirror should darken quickly.
22 Rep. Gr.68 - Interior equipment
Page 31
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
2.4 Calibrating interior mirror with compass (USA only)
Audi TT 1999 ➤
As an integral feature, North is permanently set in the interior mir‐
ror on a geographical zone basis by way of a magnetic field.
The points of the compass N, NE, E, SE, S, SW, W and NW are
indicated on the digital display.
Calibration is required for new interior mirrors or for mirrors which
have been disconnected from the power supply for a lengthy pe‐
riod (no display or display indicates “C”).
2.4.1 Calibrating new compass
– Switch on ignition.
– “C” must appear on display.
– If “C” does not appear, press a thin object (e.g. ballpoint pen)
against the adjuster switch on the underside of the mirror until
“C” is displayed.
2. Interior mirror 23
Page 32
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with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
– Drive slowly (approx. 10 km/h) 2-3 times in a circle until point
of the compass is displayed.
– Use thin object (e.g. ballpoint pen) to press against adjuster
switch on underside of mirror until appropriate zone number is
displayed.
– Zones are shown on the adjacent map.
– A point of the compass appears on the display after several
seconds.
24 Rep. Gr.68 - Interior equipment
Page 33
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
2.4.2 Calibrating existing compass
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
– Switch on ignition.
– “C” must appear on display.
– If “C” does not appear, press a thin object (e.g. ballpoint pen)
against the adjuster switch on the underside of the mirror until
“C” is displayed.
– Drive slowly (approx. 10 km/h) 2-3 times in a circle until point
of the compass is displayed.
2. Interior mirror 25
Page 34
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with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
2.4.3 Zone setting
– Switch on ignition.
– Use thin object (e.g. ballpoint pen) to press against adjuster
switch on underside of mirror until appropriate zone number is
displayed.
– Zones are shown on the adjacent map.
– A point of the compass appears on the display after several
seconds.
26 Rep. Gr.68 - Interior equipment
Page 35
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
2.5 Bonding in retainer plate for interior mir‐
ror
2.5.1 Repair method using glass-to-metal ad‐
hesive
2.5.2 Special tools and workshop equipment required
♦ Glass-to-metal bonding set D 000 703 A1
1 - Glass scraper (commercially available)
2 - Blade (commercially available)
WARNING
Adhesive is to be applied at ambient temperature, observing
manufacturer's safety instructions and directions for use.
The material takes several hours to become fully hardened.
Audi TT 1999 ➤
– Dimension for interior rear view mirror a = 135 mm (top edge
of windscreen to centre of bonding surface of mirror base)
2.5.3 Sequence of operations
– Take mirror plate out of mirror base.
– Use wire brush to remove PUR adhesive from mirror plate.
– Sand down the three spacers on the bonding surface. To do
so, place sandpaper (360/400 grain) on flat surface.
– Keep sanded surface free from dirt and grease.
– Use glass scraper to remove PUR adhesive and primer from
windscreen down to ceramic layer.
WARNING
Take care not to damage ceramic layer. Scratches will remain
permanently visible.
– Use adhesive remover D 002 000 10 or cleaning fluid D 009
401 04 to clean bonding surface.
– Cut nylon mesh fabric exactly to the size of the mirror base.
2. Interior mirror 27
Page 36
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with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
Note
Wear hand protection (rubber glove).
– Apply adhesive evenly and smoothly to base of mirror.
– Fit nylon mesh fabric onto base of mirror.
– Apply further adhesive to nylon mesh fabric by dabbing with
the tube.
The time available between placing the nylon mesh fabric on the
adhesive and pressing onto the windscreen is 30 seconds.
– Press base of mirror firmly (do not use force) against wind‐
screen for 15 seconds.
– Remove excess adhesive with a cloth.
Note
Interior rear view mirror can be fitted after 15 minutes.
28 Rep. Gr.68 - Interior equipment
Page 37
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
69 – Passenger protection
1 Seat belt safety regulations
1.1 Safety regulations for handling pyro‐
technic belt tensioners
♦ Testing, fitting and repair work is only to be performed by
qualified personnel.
♦ Never use test lamp, voltmeter or ohmmeter for checking.
♦ Belt tensioner units are only to be checked in situ using suit‐
able vehicle diagnostic, testing and information systems (e.g.
vehicle diagnostic, testing and information system -VAS
5051B- ) .
♦ Before handling belt tensioner units (e.g. to unplug connector),
the person concerned must “discharge static”, for example by
briefly grasping hold of door striker plate.
♦ Always disconnect power supply when working on belt ten‐
sioners.
♦ “Conventional ignition lock:” Heed measures to be taken when
disconnecting battery ⇒ Electrical system; Rep. Gr. 27.
♦ “Electronic ignition lock (e.g. A6 as of Model Year 2005; A8 as
of Model Year 2003):” Contrary to the procedure described for
“Disconnecting and connecting battery” (⇒ Electrical system;
Rep. Gr. 27 ), the battery must be disconnected with the ig‐
nition on when removing the belt tensioner unit.
♦ Disconnect battery earth strap/cable and cover negative ter‐
minal. No waiting time is necessary after disconnecting the
battery.
♦ There must not be anyone in the vehicle when connecting the
battery.
♦ Heed measures to be taken after connecting battery ⇒ Elec‐
trical system; Rep. Gr. 27 ; Battery .
♦ When connecting belt tensioner unit, all mechanical parts (in‐
cluding those of the three-point seat belt) must be properly
anchored.
♦ Other than the person performing the work, there should be
no-one in the vehicle.
♦ Belt tensioner components are neither to be opened nor re‐
paired; always use new parts.
♦ Belt tensioner units which have been dropped onto a hard
surface or reveal signs of damage are no longer to be fitted.
♦ Always replace mechanically damaged (dented, cracked) belt
tensioner units.
Audi TT 1999 ➤
♦ Belt tensioner units must be installed immediately following
removal from their transportation containers.
♦ Return belt tensioner unit to transportation container if work
has to be interrupted.
♦ Never point open end of belt tensioner at another person.
♦ Always wash hands after handling ignited belt tensioners.
1. Seat belt safety regulations 29
Page 38
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with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
♦ Storage and transportation are governed by the relevant local
legislation.
♦ Belt tensioner units are never to be left unattended.
♦ Belt tensioner units are not to be treated with grease, cleaning
agents or the like.
♦ Belt tensioner units are not to be exposed to temperatures in
excess of 100° C even for brief periods.
1.2 Disposal of pyrotechnic belt tensioners
♦ Non-ignited pyrotechnic components (e.g. airbags, seat belts,
pyrotechnic battery isolators) are to be processed in the proper
manner in the original packaging as stipulated by local legis‐
lation. In cases of doubt, contact the appropriate Regional
Sales Centre or importer.
♦ Pyrotechnic components ignited in the course of an accident
can be disposed of together with commercial refuse.
WARNING
This does not apply to belt tensioners operating on the Wankel
principle. These are to be treated in the same manner as nonignited pyrotechnic components (e. g. airbags, seat belts, py‐
rotechnic battery isolators). Reason: It is not possible with the
equipment available to workshops to check whether all the ig‐
nition stages of Wankel-type belt tensioners have been ignited.
30 Rep. Gr.69 - Passenger protection
Page 39
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
2 Coupé seat belts
2.1 Seat belt anchorage points (exploded view)
1 - Three-point seat belt with
belt tensioner
❑ Removing ⇒ page 32
2 - Outer floor panel anchorage
point
❑ Removing ⇒ page 33
3 - Buckle anchorage point
❑ Removing, standard
seat ⇒ page 34
❑ Removing, bucket seat
⇒ page 34
4 - Belt guide fitting anchorage
point ⇒ page 34
5 - Rear left and right threepoint seat belt
❑ Removing ⇒ page 35
6 - Centre floor panel anchor‐
age point
❑ Removing ⇒ page 37
Audi TT 1999 ➤
2. Coupé seat belts 31
Page 40
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
2.2 Removing and installing three-point seat belt with belt tensioner
1 - Belt tensioner
♦ Removing three-point seat
belt
– Disconnect battery.
– Remove rear seat
bench ⇒ page 166 .
– Remove appropriate
rear seat backrest
⇒ page 168 .
– Unscrew outer floor
panel anchorage point
⇒ page 33 .
– Remove appropriate
side trim ⇒ page 104 .
– Remove B-pillar brace
⇒ page 32 .
– Unscrew belt guide fit‐
ting anchorage point
⇒ page 34 .
– Unplug connector -4- at
belt tensioner.
– Unscrew bolt -3- (1x).
– Take belt tensioner -1-
with locating pin -2- out
of mounts -5-.
♦ Installing
♦ After fitting passenger's
side three-point seat belt,
check belt function for child
seat ⇒ page 44 .
2 - Locating pin
3 - Bolt (1x)
❑ Tightening torque 55
Nm
4 - Belt tensioner connector
5 - Mount
Note
♦
After connecting battery, re‐
member to check vehicle equip‐
ment (radio, clock, electric win‐
dow lifters) in line with Workshop
Manual and/or owner's manual.
♦
If airbag warning lamp (K75) in‐
dicates a fault following installa‐
tion, use vehicle diagnostic, test‐
ing and information system -VAS
5051 A- to erase and re-interrog‐
ate fault memory.
2.3 Removing B-pillar brace
– Remove side trim ⇒ page 104 .
32 Rep. Gr.69 - Passenger protection
Page 41
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
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General body repairs, Interior - Edition 07.2005
– Unscrew nut -2- (2x).
– Tightening torque 40 Nm
– Unscrew bolt -3-.
– Tightening torque 40 Nm
– Unscrew bolts -4- (3x).
– Tightening torque 40 Nm
2.4 Outer floor panel anchorage point
Audi TT 1999 ➤
– Open cover of panel -1- by pulling in direction of arrow.
– Take panel -1- downwards out of floor covering.
– On installation, slide tab -3- beneath floor covering.
– Close cover to press tabs -2- beneath floor covering.
– Unscrew bolt -2-.
– Tightening torque 55 Nm
– Take out tab -3- beneath floor covering.
2. Coupé seat belts 33
Page 42
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
2.5 Buckle anchorage point - standard seat
– Remove seat ⇒ page 143 .
– Buckle -1-
– Unscrew bolt -2-.
– Tightening torque 24 Nm
2.6 Buckle anchorage point - bucket seat
– Remove bucket seat ⇒ page 162 .
– Screw out bolt -3-.
– Detach packing plate -2- and buckle -1-.
– Tightening torque: 40 Nm
2.7 Belt guide fitting anchorage point
– Remove outer floor panel anchorage point ⇒ page 33 .
– Remove side trim ⇒ page 104 .
– Unscrew bolts -4- (2x).
– Tightening torque 55 Nm
– Thread belt guide fitting -1- out of webbing -2-.
– On installation, remember to fit washer -3-.
34 Rep. Gr.69 - Passenger protection
Page 43
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
2.8 Removing and installing rear three-point seat belt
1 - Belt reel
♦ Removing
– Remove rear seat
bench and backrest
⇒ page 166 .
– Remove latch trim
⇒ page 169 .
– Detach rear seat back‐
rest padding
⇒ page 183 .
– Remove webbing cover
panel and webbing
guide ⇒ page 36 .
– Unscrew bolt -3- (1x).
– Unscrew nut -2-.
♦ Installing
– Fit spacer ring -4- be‐
neath guide fitting -5-.
Audi TT 1999 ➤
– Perform remaining in‐
stallation operations in
reverse order of remov‐
al.
2 - Nut
❑ Tightening torque 55
Nm
3 - Bolt
❑ Tightening torque 55
Nm
4 - Spacer ring
5 - Guide fitting
2. Coupé seat belts 35
Page 44
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with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
2.9 Removing webbing cover panel and webbing guide
1 - Webbing cover panel
♦ Webbing cover panel and
webbing guide can only be
jointly removed.
– Unscrew bolts -2- (4x).
– Release retainer tab -7-
and fold down bottom
part of webbing guide
-6-.
– Unscrew bolts -5- (2x).
– Press out clips -3- and
separate webbing cover
panel -1- and webbing
guide -4-.
2 - Bolts (4x)
3 - Clips
4 - Webbing guide
♦ Webbing cover panel and
webbing guide can only be
jointly removed.
– Unscrew bolts -2- (4x).
– Release retainer tab -7-
and fold down bottom
part of webbing guide
-6-.
– Unscrew bolts -5- (2x).
– Press out clips -3- and
separate webbing cover
panel -1- and webbing
guide -4-.
5 - Bolts (2x)
6 - Bottom part of webbing guide
7 - Retainer tab
36 Rep. Gr.69 - Passenger protection
Page 45
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General body repairs, Interior - Edition 07.2005
2.10 Centre floor panel anchorage points
1 - Buckle
♦ Removing
– Remove rear seat
bench ⇒ page 166 .
– Unscrew bolt -2-.
♦ Installing
– On installation, make
sure mount -3- is posi‐
tioned on retainer tab
-4-.
2 - Bolts (2x)
❑ Tightening torque 55
Nm
3 - Mount
4 - Retainer tab
5 - Centre support bracket
Audi TT 1999 ➤
2. Coupé seat belts 37
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
3 Roadster seat belts
3.1 Seat belt anchorage points (exploded view)
1 - Three-point seat belt with
belt tensioner
❑ Removing ⇒ page 39
2 - Outer floor panel anchorage
point
❑ Removing ⇒ page 40
3 - Buckle anchorage point
❑ Removing ⇒ page 34
4 - Belt guide fitting anchorage
point
❑ Removing ⇒ page 41
5 - Belt guide fitting bracket
❑ Removing ⇒ page 41
38 Rep. Gr.69 - Passenger protection
Page 47
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Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
3.2 Removing and installing three-point seat belt with belt tensioner
1 - Belt tensioner
♦ Removing three-point seat
belt
– Disconnect battery.
– Unscrew outer floor
panel anchorage point
⇒ page 40 .
– Unscrew belt guide fit‐
ting anchorage point
⇒ page 41 .
– Remove appropriate
back panel to side
⇒ page 120 .
– Remove storage com‐
partment on right
⇒ page 125 or left
⇒ page 124 .
– Remove loudspeaker
⇒ page 40 .
– Unscrew bolt -5- (1x).
– Take belt tensioner -1-
with locating pin -2- out
of mounts -3-.
– Pull out belt tensioner
-1- to front.
– Unplug connector -6- at
belt tensioner.
♦ Installing
♦ . After fitting passenger's
side three-point seat belt,
check belt function for child
seat ⇒ page 44 .
2 - Locating pin
3 - Mount
4 - Washer
5 - Bolt (1x)
❑ Tightening torque 55 Nm
6 - Belt tensioner connector
3. Roadster seat belts 39
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Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
Removing side loudspeaker
– Unscrew bolts -2- (3x).
– Unplug connectors to loudspeaker -1-.
Note
♦
After connecting battery, remember to check vehicle equip‐
ment (radio, clock, electric window lifters) in line with Work‐
shop Manual and/or owner's manual.
♦
If airbag warning lamp (K75) indicates a fault following instal‐
lation, use vehicle diagnostic, testing and information system
-VAS 5051 A- to erase and re-interrogate fault memory.
3.3 Outer floor panel anchorage point
– Open cover of panel -1- by pulling in direction of arrow.
– Take panel -1- downwards out of floor covering.
– On installation, slide tab -3- beneath floor covering.
– Close cover to press tabs -2- beneath floor covering.
– Unscrew bolt -2-.
– Tightening torque 55 Nm
– Take out tab -3- beneath floor covering.
40 Rep. Gr.69 - Passenger protection
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General body repairs, Interior - Edition 07.2005
3.4 Belt guide fitting anchorage point
– Remove outer floor panel anchorage point ⇒ page 40 .
– By pressing in direction of arrow, use screwdriver to prise out
belt guide fitting trim -3-.
– Unscrew bolt -4-.
– Tightening torque 55 Nm
– Thread belt guide fitting trim -3- out of webbing -2-.
1 - Belt guide fitting
Audi TT 1999 ➤
3.5 Belt guide fitting bracket
– Unscrew bolts -2- (2x).
– Tightening torque 20 Nm
– Detach belt guide fitting bracket -1-.
3. Roadster seat belts 41
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Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
4 Checking seat belts
WARNING
Whenever an accident has occurred, seat belt system is to be
subjected to a systematic examination. If the test items reveal
damage, customers are to be made aware of the need for belt
replacement.
Test items
♦ Checking webbing ⇒ page 42
♦ Checking belt retractor (locking action) ⇒ page 43
♦ Visual inspection of buckle ⇒ page 43
♦ Functional test of buckle ⇒ page 43
♦ Checking guide fittings and latch plate ⇒ page 44
♦ Checking attachment components and anchorage points
⇒ page 44
Note
If customers refuse to have damaged seat belts replaced, an ap‐
propriate note to this effect is to be made in the Service booklet.
4.1 Checking webbing
– Pull webbing as far as it will go out of inertia reel or lap belt
adjuster.
– Check webbing for dirt and, if necessary, wash with mild soap
solution ⇒ Owner's manual .
42 Rep. Gr.69 - Passenger protection
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General body repairs, Interior - Edition 07.2005
• If either of the following illustrated examples of damage (1 and
2) is found on a crash vehicle, replace seat belt complete with
buckle.
• If damage such as that illustrated by items 1, 2 or 3 is found
on a vehicle which has not been involved in an accident, only
the damaged seat belt has to be replaced.
• 1 - Webbing cut, torn or chafed
• 2 - Frayed fabric at edge of belt
• 3 - Burn marks caused by cigarettes or the like
4.2 Checking inertia reel (locking action)
The inertia reel has two locking functions.
♦ The first locking function is triggered by pulling belt quickly out
of inertia reel (accelerated belt unwinding).
Checking
– Pull webbing firmly out of inertia reel.
• No locking effect - replace seat belt complete with buckle.
• In the event of problems with belt unwinding or retraction, start
by checking whether position of inertia reel has changed.
• The second locking function is triggered by altering vehicle
motion (vehicle-dependent locking function).
Checking
– Fasten seat belt.
– Accelerate vehicle to 20 km/h and then press foot brake to
implement emergency braking.
• If belt is not locked by locking mechanism on braking, replace
seat belt complete with buckle.
Audi TT 1999 ➤
WARNING
For safety reasons, test drive is to be performed on a road with
no traffic so as not to endanger other road users.
4.3 Visual inspection of buckle
– Examine buckle for cracks and flaking.
• If damage is found, replace seat belt complete with buckle.
4.4 Functional test of buckle
Checking buckle
– Insert latch plate in buckle until it is heard to engage. Pull firmly
on webbing to check whether locking mechanism has engag‐
ed.
• If latch plate fails to engage properly in buckle even once in
the course of a minimum of 5 tests, replace seat belt complete
with buckle.
4. Checking seat belts 43
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Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
Checking release function
– Release seat belt by pressing with finger on buckle button. If
webbing is slack, latch plate must be released automatically
from buckle.
• Check at least 5 times. If latch plate is not released even just
once, replace seat belt complete with buckle.
WARNING
Never use lubricant to eliminate noise or stiffness at buckle
buttons.
4.5 Checking guide fittings and latch plate
If belt system has been subjected to load (seat belt fastened in
an accident), plastic-coated fittings will reveal fine parallel score
marks (On the other hand, wear caused by frequent use can be
seen from uniformly smooth patches).
– Examine for deformation, flaking and cracks in plastic.
• If scoring and/or damage is found, replace seat belt complete
with buckle.
4.6 Checking attachment components and
anchorage points
♦ Latch plate deformed (strained)
♦ Height adjuster not working
♦ Anchorage points (seat, pillar, floor) deformed or thread dam‐
aged
• If component damage is found, replace seat belt complete with
buckle.
• Replace anchorage points.
Note
Only the appropriate damaged component has to be replaced in
the event of damage not resulting from an accident (e.g. wear).
4.7 Checking child seat restraint function for
additional child seats (not for driver's
seat belt)
The complete belt assembly (including side trim) must be fitted
for checking this function.
Activation of restraint function
♦ Pull out webbing as far as it will go.
Correct function
♦ Belt should be heard to retract.
♦ If retraction is stopped, the belt can no longer be pulled out
again.
Deactivation
♦ Retract belt as far as the last approx. 100 mm.
44 Rep. Gr.69 - Passenger protection
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General body repairs, Interior - Edition 07.2005
♦ The restraint function must be deactivated at the latest when
the belt has been retracted as far as the last 100 mm. Belt reassumes its normal function.
Audi TT 1999 ➤
4. Checking seat belts 45
Page 54
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Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
5 Airbag safety regulations
5.1 General safety regulations for handling
airbag system
♦ Testing, fitting and repair work is only to be performed by
qualified personnel.
♦ Before handling airbag units (e.g. to unplug connector), the
person concerned must “discharge static”, for example by
briefly grasping hold of door striker plate.
♦ Never perform tests using a test lamp, voltmeter or ohmmeter.
♦ The airbag system is only to be checked in situ using suitable
vehicle diagnostic, testing and information systems (e.g. ve‐
hicle diagnostic, testing and information system -VAS
5051B- ) .
♦ Always disconnect power supply when working on airbag sys‐
tem.
♦ “Conventional ignition lock:” Heed measures to be taken when
disconnecting battery ⇒ Electrical system; Rep. Gr. 27.
♦ “Electronic ignition lock (e.g. A6 as of Model Year 2005; A8 as
of Model Year 2003):” Contrary to the procedure described for
“Disconnecting and connecting battery” (⇒ Electrical system;
Rep. Gr. 27 ), the battery must be disconnected with the ig‐
nition on when removing the airbag.
♦ Disconnect battery earth strap/cable and cover negative ter‐
minal. No waiting time is necessary after disconnecting the
battery.
♦ There must not be anyone in the vehicle when connecting the
battery.
♦ Heed measures to be taken after connecting battery ⇒ Elec‐
trical system; Rep. Gr. 27 .
♦ Airbag units are always to be installed immediately following
removal from transportation container.
♦ Return airbag unit to transportation container if work has to be
interrupted.
♦ Airbag units are never to be left unattended.
♦ Following removal, airbag units are to be stored with cush‐
ioned side facing upwards.
♦ Airbag components are not to be opened or repaired. Always
use new components.
♦ Airbag units which have been dropped onto a hard surface or
exhibit signs of damage are not to be re-fitted.
♦ Always wash hands after touching ignited airbag units.
♦ Storage and transportation are governed by the relevant local
legislation.
♦ Airbag unit replacement
Always keep to the following sequence on replacing airbag units:
1 - Remove old airbag unit and set it down with cushioned side
facing upwards. Heed special instructions for head airbag
⇒ page 47 .
46 Rep. Gr.69 - Passenger protection
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General body repairs, Interior - Edition 07.2005
2 - Remove new airbag unit from transportation container and
set it down with cushioned side facing upwards. Heed spe‐
cial instructions for head airbag ⇒ page 47 .
3 - Immediately place old airbag unit in transportation contain‐
er.
4 - Install new airbag unit in vehicle.
♦ There is no replacement interval for airbag units.
♦ Airbag units are not to be treated with grease, cleaning agents
or the like.
♦ Airbag units are not to be exposed to temperatures in excess
of 100 °C even for brief periods.
♦ The module is always to be replaced if any contamination such
as oil, grease, paint or solvent has penetrated the fabric.
5.2 Additional safety precautions for side airbag
♦ It is advisable to use genuine seat covers.
♦ Use is never to be made of seat covers or loose covers not
specially approved for use on Audi seats with side airbags.
♦ The backrest foam fill is not to be cut away in the area of the
side airbag.
♦ On installation, the seam in the area of the side airbag must
be straight.
♦ All staples (metal and plastic staples) must be replaced.
♦ It is advisable to use genuine staples only.
♦ On installation, all staples must be fitted in the same positions
as on removal.
♦ If cover is damaged (tears, burn marks, etc.) in area of side
airbag, it is always to be replaced for safety reasons, as oth‐
erwise side airbag will not inflate properly.
♦ Backrest cover in area of side airbag is never to be repaired
(on account of special thread and precisely defined seam).
♦ Always replace backrest padding after side airbags have been
triggered.
♦ All damaged components must be replaced after an accident.
The airbag unit can be re-used if there are no signs of damage.
♦ If side airbag units are replaced, remove airbag number sticker
from new unit and affix it over old one on seat pan.
♦ Never pierce cover in area of airbag and sensor mat with up‐
holstery needle or similar pointed objects.
Audi TT 1999 ➤
5.3 Additional safety regulations for head airbag
♦ Prior to installation, always visually inspect trim for damage.
♦ Trim repairs (upper A-pillar, upper B, upper C and D-pillar trim)
are not permitted.
♦ On installation, make sure trim is firmly attached.
♦ The head airbag module is only to be folded at the intended
location (transition between roof and A-pillar).
♦ When performing repairs behind the head airbag always re‐
move the entire module.
5. Airbag safety regulations 47
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Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
♦ Place head airbag modules removed in transportation con‐
tainers or set down on a clean, flat surface (place on blanket
or in luggage compartment).
♦ Following body repairs in the head airbag area, the body must
be checked for weld spatter, deformation and abrasion (com‐
pare to opposite side).
♦ Always keep a firm hold on the head airbag module.
♦ Always fold up head airbag modules following removal and
hold at gas generator (thumb in direction of electrical connec‐
tion).
♦ Always keep one hand on the gas generator
♦ Never twist, wring, knot, throw, pull, hang up, squash,
squeeze, pinch or trap head airbag modules.
5.4 Replacing airbag units following an ac‐
cident
Special tools and workshop equipment required
♦ Suitable vehicle diagnostic, testing and information systems
e.g. Vehicle diagnostic, testing and information system -VAS
5051 A-
Note
♦
The airbag control unit can be used with airbag generation 8.*
“not 8.R” for up to two side/head airbag and/or belt tensioner
triggering operations.
♦
The airbag control unit can be used with airbag generation 9.*
and 8.R for up to two side/head driver's/front passenger's air‐
bag and/or belt tensioner triggering operations.
♦
Fault display “Control unit defective” appears after triggering
for third time.
The airbag control unit must be replaced:
♦ In the event of driver's/front passenger's airbag triggering
“however not with airbag generation 9.* and 8.R ” ⇒ page 48
♦ After three side/head driver's/front passenger's airbag or belt
tensioner triggering operations
♦ If housing is damaged
♦ In the event of tunnel deformation within a 200 mm radius of
the control unit
Always replace the following:
♦ All triggered airbag units
♦ Battery cut-off relay -J655- or battery isolation igniter -N253-
(equipment version)
48 Rep. Gr.69 - Passenger protection
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General body repairs, Interior - Edition 07.2005
Additionally if front passenger's airbag has been triggered:
♦ Dash panel
♦ Deformed supports for front passenger's module (must not be
bent back into shape)
♦ Both front airbag sensors at front end
♦ All other lateral acceleration sensors in the event of deforma‐
tion of anchorage points in area of sensors
Additionally if driver's airbag has been triggered:
♦ Coil connector with slip ring
♦ Both front airbag sensors at front end
♦ All other lateral acceleration sensors in the event of deforma‐
tion of anchorage points in area of sensors
Additionally if side airbag has been triggered:
♦ Pressure sensors on side on which triggering has taken place
♦ Lateral acceleration sensors on side on which triggering has
taken place
♦ Cover
♦ Padding
♦ Folding rear seat backrest: Side padding
♦ All other lateral acceleration sensors in the event of deforma‐
tion of anchorage points in area of sensors
Additionally, if head airbag has been triggered:
♦ Lateral acceleration sensors on side on which triggering has
taken place
♦ A, B, C and D-pillar trim
♦ All other lateral acceleration sensors in the event of deforma‐
tion of anchorage points in area of sensors
Additionally:
♦ All seat belts with triggered belt tensioners
A - Airbag control unit triggered:
– Connect up suitable vehicle diagnostic, testing and informa‐
tion system, e.g. vehicle diagnostic, testing and information
system -VAS 5051 A- and select vehicle system “15 - Airbag”
from list. When doing this, the ignition must be switched on.
Front belt tensioner:
– Read measured value block, display group 001:
Triggered belt tensioners can be seen from display “too high”.
Rear belt tensioner (country-specific equipment):
– Read measured value block, display group 002:
Audi TT 1999 ➤
Triggered belt tensioners can be seen from display “too high”.
B - Airbag control unit replaced:
– Connect up suitable vehicle diagnostic, testing and informa‐
tion system, e.g. vehicle diagnostic, testing and information
system -VAS 5051 A- and select vehicle system “15 - Airbag”
from list. When doing this, the ignition must be switched on.
– Interrogate fault memory:
5. Airbag safety regulations 49
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Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
Triggered belt tensioners can be seen from fault message “Belt
tensioner igniter - Resistance value too high”.
♦ The following must also be replaced if necessary (visual in‐
spection): All damaged components
After replacing airbag units or control unit, affix labels (tear-off
portion only) to registration card and forward registration card to
appropriate Regional Sales Centre or importer for recording pur‐
poses.
5.5 Checking attachment components fol‐
lowing an accident
Always replace all damaged attachment components. Bending
back into shape or “forcing” is not permitted.
The following components must be checked after triggering of the
corresponding airbag.
If front passenger's airbag has been triggered:
♦ Dash panel central tube; stress-free fitting of the front pas‐
senger's airbag supports and the front passenger's airbag
must be possible. Otherwise the central tube is also to be re‐
placed.
♦ Check the glove box for damage and replace if damage is
found.
If driver's airbag has been triggered:
♦ Steering wheel; remove steering wheel and set it down on the
rim on a flat surface, the full area of the rim must lie flat. Oth‐
erwise the steering wheel is to be replaced.
♦ Check steering wheel for smoke marks and replace steering
wheel if such marks are found.
5.6 Accident not involving airbag triggering
♦ Airbag component replacement is not necessary if airbag
warning lamp -K75- does not indicate a fault. Seat belts are to
be checked separately.
5.7 Disposal of pyrotechnic airbag units
♦ Non-ignited pyrotechnic components (e.g. airbags, seat belts,
pyrotechnic battery isolators) are to be processed in the proper
manner in the original packaging as stipulated by local legis‐
lation. In cases of doubt, contact the appropriate Regional
Sales Centre or importer.
♦ Pyrotechnic components ignited in the course of an accident
can be disposed of together with commercial refuse.
WARNING
This does not apply to belt tensioners operating on the Wankel
principle. These are to be treated in the same manner as nonignited pyrotechnic components (e. g. airbags, seat belts, py‐
rotechnic battery isolators). Reason: It is not possible with the
equipment available to workshops to check whether all the ig‐
nition stages of Wankel-type belt tensioners have been ignited.
50 Rep. Gr.69 - Passenger protection
Page 59
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with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
6 Servicing airbag
6.1 Exploded view of fitting locations
1 - Driver's airbag unit
❑ Removing ⇒ page 53
2 - Removing and installing coil
connector with slip ring
❑ Removing ⇒ page 55
3 - Airbag control unit
❑ Removing ⇒ page 51
4 - Front passenger's airbag
deactivation switch
❑ Removing ⇒ page 58
5 - Front passenger's airbag
unit
❑ Removing ⇒ page 57
❑ Blocking and activation
(adaption) ⇒ Vehicle di‐
agnosis, testing and in‐
formation system VAS
5051
6 - Lateral acceleration sensor
❑ Removing and installing
7 - Side airbag
❑ Removing and installing
8 - Diagnostic connector
⇒ page 66
⇒ page 59
Audi TT 1999 ➤
6.2 Removing and installing airbag control unit (J 234)
WARNING
Heed safety precautions for working on airbags ⇒ page 46 .
– Disconnect battery earth strap/cable.
– Remove footwell vent trim and footwell vent ⇒ page 15 .
6. Servicing airbag 51
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General body repairs, Interior - Edition 07.2005
– Unscrew nuts -2- (3x).
– Tightening torque 6 Nm
– Take out control unit -1-.
– Press fastener -3-.
– Release catch -4- at connector -2- in direction of arrow.
– Pull connector -2- out of control unit -1-.
– Detach control unit.
Note
Re-encode following control unit replacement.
– Switch on ignition.
WARNING
Make sure there is no-one in the vehicle when connecting bat‐
tery.
– Close doors.
– Connect battery earth strap.
♦
After connecting battery, remember to check vehicle equip‐
Note
ment (radio, clock, electric window lifters) in line with Work‐
shop Manual and/or owner's manual.
♦
If airbag warning lamp (K75) indicates a fault following instal‐
lation, use vehicle diagnostic, testing and information system
-VAS 5051 A- to erase and re-interrogate fault memory.
52 Rep. Gr.69 - Passenger protection
Page 61
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General body repairs, Interior - Edition 07.2005
7 Servicing driver's airbag
7.1 Removing and installing driver's airbag unit
WARNING
Heed safety precautions for working on airbags ⇒ page 46 .
1 - Steering wheel
❑ Removing ⇒ page 55
2 - Plug for coil connector
3 - Airbag unit
♦ Removing
Audi TT 1999 ➤
WARNING
Heed safety precautions
for working on airbags
⇒ page 46 .
– Use size -T30- Torx
wrench to unscrew air‐
bag unit.
– Unplug connector -
⇒ Item 2 (page 53) -.
– Set down airbag unit
with impact cushion fac‐
ing upwards.
♦ Installing
– Make sure connector -
⇒ Item 2 (page 53) - is
heard to engage.
– Screw on (7 Nm) airbag
unit.
WARNING
Make sure there is noone in the vehicle when
connecting battery.
– Switch on ignition and
connect battery earth strap.
7. Servicing driver's airbag 53
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Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
Note
♦
After connecting battery, re‐
member to check vehicle equip‐
ment (radio, clock, electric win‐
dow lifters) in line with Workshop
Manual and/or owner's manual.
♦
If airbag warning lamp (K75) in‐
dicates a fault following installa‐
tion, use vehicle diagnostic, test‐
ing and information system -VAS
5051 A- to erase and re-interrog‐
ate fault memory.
4 - Multi-point socket head bolt, 60 Nm
❑ Always to be replaced
5 - Torx bolts (T 30)
❑ 7 Nm
6 - Torx wrench (T 30)
7 - Coil connector with slip ring
54 Rep. Gr.69 - Passenger protection
Page 63
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
7.2 Removing and installing steering wheel
Audi TT 1999 ➤
♦ Removing
– Remove airbag unit ⇒ Page ⇒ page 53 .
– Turn steering wheel to centre position (wheels in straight-
ahead position).
– Unscrew bolt - ⇒ Item 4 (page 54) -.
♦ Installing
– Attach steering wheel in centre position (wheels in straight-
ahead position).
– Replace bolt - ⇒ Item 4 (page 54) - and tighten to 60 Nm.
– Install airbag unit ⇒ Page ⇒ page 53 .
7.3 Removing and installing coil connector with slip ring
Driver's airbag unit and steering wheel removed
– Pull steering column out and down as far as it will go.
7. Servicing driver's airbag 55
Page 64
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
– Unscrew bolt -1- (2x), tightening torque 2.8 Nm.
– Detach handle -2-.
– Screw out two cross-head bolts -arrows-.
– Tightening torque 0.6 Nm
– Detach upper trim for steering column switch -1-.
On installation, insert upper shell into lower shell hooks, swivel
downwards and screw on.
– Unscrew bolts -2- (2x). Tightening torque 0.6 Nm
– Screw out hexagon socket-head bolt -1-.
– Tightening torque 0.6 Nm
– Detach lower trim for steering column switch -3-.
– Unplug connector -1-.
– Release fasteners -arrows- and detach coil connector with slip
ring from steering column switch.
Note
Coil connector with slip ring is only to be removed and installed
in centre position (wheels in straight-ahead position).
56 Rep. Gr.69 - Passenger protection
Page 65
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
8 Servicing front passenger's airbag
8.1 Removing and installing front passeng‐
er's airbag
WARNING
Heed safety precautions for working on airbags ⇒ page 46 .
1 - Front passenger's airbag
unit
♦ Removing
– Disconnect battery
earth strap/cable.
– Remove glove box
⇒ page 1 .
– Unplug connector -5-
⇒ page 58
Audi TT 1999 ➤
WARNING
Never unplug connector
(2-pin, red) at front pas‐
senger's airbag unit.
– Unscrew bolts -3- (4x).
– Take out airbag unit.
– Unscrew bolts -2- (4x).
– Set down airbag unit
with impact cushion fac‐
ing upwards.
♦ Installing
– Install airbag unit.
– Make sure connector
-5- is heard to fully en‐
gage.
– Switch on ignition.
WARNING
Make sure there is noone in the vehicle when
connecting battery.
– Connect battery earth strap.
2 - Bolts (4x)
❑ Tightening torque 12 Nm
❑ Replace after airbag triggering
3 - Bolts (4x)
❑ Tightening torque 12 Nm
❑ Replace after airbag triggering
8. Servicing front passenger's airbag 57
Page 66
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
4 - Support
❑ Replace after airbag triggering
❑ Remove airbag unit.
❑ Unscrew bolts -2- (4x).
5 - Connector
Unplugging airbag connector
– Use screwdriver to lift front passenger's airbag connector -1-
over retainer tab -2- and unplug connector in direction of arrow
-3-.
Note
♦
After connecting battery, remember to check vehicle equip‐
ment (radio, clock, electric window lifters) in line with Work‐
shop Manual and/or owner's manual.
♦
If airbag warning lamp (K75) indicates a fault following instal‐
lation, use vehicle diagnostic, testing and information system
-VAS 5051 A- to erase and re-interrogate fault memory.
8.2 Removing and installing key switch for front passenger's airbag
– Remove glove box ⇒ page 1 .
– Press retainers -arrows- with screwdriver.
– Press out key switch for front passenger's airbag -1- to front.
– Insert key -3- in lock -2-.
– Destroy key switch -1- with key -3- inserted.
– Break out lock -2-.
– Press lock -2- with key -3- inserted into new key switch -1- until
lock -2- engages.
58 Rep. Gr.69 - Passenger protection
Page 67
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
9 Servicing side airbag
9.1 Removing and installing side airbag
WARNING
Heed safety precautions for working on airbags ⇒ page 46 and
side airbags ⇒ page 47 .
1 - Tab
2 - Side airbag module
♦ Removing
– Disconnect battery
earth strap/cable.
– Remove seat
⇒ page 143 .
– Remove height adjust‐
ment handle
⇒ page 150 .
– Unplug airbag connec‐
tor from connector con‐
sole ⇒ page 61 .
– Disconnect airbag cable
from seat pan
⇒ page 61 .
– Unfasten holders at seat
cushion ⇒ page 149 ,
Item no. 2.
– Pull seat side trim out‐
wards slightly in area of
height adjustment lever
and fold front of seat
cushion upwards.
– Remove spring cover
⇒ page 148 .
– Sever cable tie
⇒ page 63 .
– Disengage cover at rear
at attachment strip
⇒ page 149 , Item no.
11.
– Detach seat cushion.
– Remove handwheel
and release handle on
side airbag side
⇒ page 154 .
– Press out expanding riv‐
et of fitting trim and re‐
move fitting trim ⇒ page 154 .
– Disengage backrest cover over a length of approx. 200 mm from fastening slot ⇒ page 175 , detail
-D-.
– Bend open tab -1- and disengage cover.
– Disengage backrest cover over a length of approx. 100 mm at side airbag module ⇒ page 175 .
– Carefully detach side airbag cable from clips ⇒ page 64 .
– Slacken off bolt -4- at securing plate -6- at bottom of side airbag module -2-.
– Press down side airbag module -2-.
– Carefully pull off side airbag module -2- outwards.
♦ Installing
9. Servicing side airbag 59
Page 68
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
Note
Always replace bolt -4-.
– Attach side airbag module -2- such that locking pins -3- engage in fastening holes -7-.
– Slide side airbag module upwards as far as it will go.
– Tighten new bolt -4- at side airbag module to a torque of 10 Nm.
– When laying airbag cable, make sure cable -5- is properly positioned in clips and routed as shown in
illustrations ⇒ page 64 and ⇒ page 61 .
– Perform remaining installation operations in reverse order of removal.
– Switch on ignition.
WARNING
Make sure there is noone in the vehicle when
connecting battery.
– Connect battery earth strap.
3 - Locking pin
4 - Bolt
❑ Tightening torque 10 Nm
5 - Airbag cable
6 - Securing plate
7 - Fastening holes
Note
♦
After connecting battery, re‐
member to check vehicle equip‐
ment (radio, clock, electric win‐
dow lifters) in line with Workshop
Manual and/or owner's manual.
♦
If airbag warning lamp (K75) in‐
dicates a fault following installa‐
tion, use vehicle diagnostic, test‐
ing and information system -VAS
5051 A- to erase and re-interrog‐
ate fault memory.
60 Rep. Gr.69 - Passenger protection
Page 69
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
9.2 Unplugging connector for side airbag
1 - Airbag connector
Note
♦
Before disconnecting igniter and
earth wires, discharge static by
briefly touching door striker plate
or body.
♦
Shown removed in detail view for
greater clarity.
❑ Pull retainer tab -3- with
finger in direction of ar‐
row (towards hand).
❑ At the same time use
other hand to pull side
airbag connector to
rear.
❑ Press retainer tab -2-
and unplug connector
-1- in direction of arrow.
2 - Retainer tab
3 - Retainer tab
Audi TT 1999 ➤
9.3 Disconnecting side airbag cable from seat pan
– Unplug heated backrest connector -2-.
– Unplug connector to belt buckle.
– Unfasten cable ties -3- and -4- from seat pan.
– Cut off cable ties -3-, -4- and -5-.
9. Servicing side airbag 61
Page 70
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
– Unfasten Bowden cable from clip -6- and disengage Bowden
cable at gas-filled strut.
1 - Airbag connector
2 - Heated backrest connector
3 - Cable tie
4 - Cable tie
5 - Cable tie
❑ Cable tie need not be re‐
placed after cutting off
6 - Clip
62 Rep. Gr.69 - Passenger protection
Page 71
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
9.4 Cable routing at fitting
1 - Side airbag cable
❑ Sever cable tie
2 - Fastener
3 - Cable tie
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
9. Servicing side airbag 63
Page 72
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
9.5 Position of fasteners at backrest frame
9.5.1 View from front
1 - Backrest frame
2 - Upper fastener
3 - Lower fastener
❑ To be positioned on a
level with edge of cover
-4-
4 - Edge of cover
64 Rep. Gr.69 - Passenger protection
Page 73
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
9.5.2 View from side
1 - Side airbag module
2 - Side airbag cable
3 - Fasteners
4 - Cover
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
9.6 Fitting conduit on side airbag cable
Note
Conduit is to be retrofitted on installing side airbag module with
no conduit -B-.
– Slip conduit -B- over side airbag cable until it makes contact
with side airbag module -5-. Mark -1- must be facing connector
-4-.
– Wrap adhesive strip -A- around conduit -B- to secure.
– Remove white backing from anti-chafe strip -C- and bond on
anti-chafe strip between marks -2- and -3-.
– Remove yellow backing and wrap around conduit.
9. Servicing side airbag 65
Page 74
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
10 Servicing airbag crash sensors
10.1 Removing and installing lateral acceler‐
ation sensor
Note
♦
One lateral acceleration sensor each is fitted on left and right
beneath front seats.
♦
Left and right lateral acceleration sensors are identical.
♦
Arrow points outwards on installation.
♦ Removing:
– Disconnect battery earth strap/cable.
– Remove front seat ⇒ page 143 .
– Remove lower -A- pillar trim ⇒ page 99 .
– Unclip inner sill panel trim.
– Lift floor covering in area of lateral acceleration sensor.
– Sever cable tie -4-.
– Unplug connector -2- from lateral acceleration sensor -1-.
– Unscrew bolts -3- (2x). Tightening torque 6 Nm
– Detach lateral acceleration sensor -1-.
♦ Installing:
– Replace cable tie.
– Switch on ignition.
WARNING
Make sure there is no-one in the vehicle when connecting bat‐
tery.
– Close doors.
– Connect battery earth strap.
Note
♦
After connecting battery, remember to check vehicle equip‐
ment (radio, clock, electric window lifters) in line with Work‐
shop Manual and/or owner's manual.
♦
If airbag warning lamp (K75) indicates a fault following instal‐
lation, use vehicle diagnostic, testing and information system
-VAS 5051 A- to erase and re-interrogate fault memory.
66 Rep. Gr.69 - Passenger protection
Page 75
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
11 Rollover bar
11.1 Removing and installing rollover bar
1 - Rollover bar
♦ Removing
– Detach rollover bar cov‐
er plate ⇒ page 68
– Unfasten back panel
cover (without removing
outer floor panel seat
belt anchorage point)
and jam wedge between
back panel cover and
rollover bar cross mem‐
ber ⇒ page 121 .
– Remove back panel
side trim ⇒ page 120 .
– Unscrew bolts -5- (2x).
– Pull rollover bar -1- out
of rubber guide -4- and
back panel cover -3-.
♦ Installing
– Before fitting rollover
bar, make sure rubber
guide is correctly posi‐
tioned ⇒ page 68
Audi TT 1999 ➤
– Only use soap solution
as lubricant.
2 - Cover plates
3 - Back panel cover
4 - Rubber guide
5 - Bolts (2x)
❑ Tightening torque 20
Nm
11. Rollover bar 67
Page 76
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
Fitting rubber guide
– After installing rollover bar, check that rubber guide -4- is in‐
serted in cross member as far as edge -A-.
Unfastening rollover bar cover plate
– Release cover plate -1- by turning anti-clockwise.
68 Rep. Gr.69 - Passenger protection
Page 77
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
11.2 Removing and installing rollover bar cross member
1 - Rollover bar cross member
♦ Removing
– Remove both rollover
bars ⇒ page 67 .
– Remove loudspeaker
assembly mount
⇒ page 122 .
– Remove wind deflector
⇒ page 130 or trim pan‐
el in place of wind de‐
flector ⇒ page 136 .
– Raise convertible top
slightly ⇒ page 70
– Remove protective caps
for bolts -4-
⇒ page 70
– Unscrew bolts -4- (2x).
– Unscrew bolts -3- (2x).
– Unscrew bolts -2- (8x).
– Take rollover bar cross
member -1- out of vehi‐
cle.
♦ Installing
Audi TT 1999 ➤
Note
♦
Tighten bolts in following se‐
quence.
♦
Bolt -3- with spigot
♦
Arrow points in direction of trav‐
el.
– Screw in bolts -3-.
– Screw in bolts -4-.
– Screw in bolts -2- diag‐
onally.
– Before fitting rollover bar, make sure rubber guide is correctly positioned ⇒ page 68
– Perform remaining installation operations in reverse order of removal.
2 - Bolts (8x)
❑ Tightening torque 20 Nm
3 - Bolts (2x)
❑ Tightening torque 20 Nm
4 - Bolts (2x)
❑ Tightening torque 20 Nm
11. Rollover bar 69
Page 78
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
Raising convertible top
– Raise convertible top -A- slightly and place screwdriver -B- or
plastic wedge between convertible top and convertible top
compartment.
Removing protective cap
– Use screwdriver to prise off cap -A-.
– Unscrew bolt -4-.
B - Spring
70 Rep. Gr.69 - Passenger protection
Page 79
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
11.3 Removing rollover bar flange
1 - Rollover bar flange
♦ Removing
– Remove appropriate
rollover bar ⇒ page 67 .
– Remove loudspeaker
assembly mount
⇒ page 122 .
– Unscrew bolts -2- (2x).
– Take out flange -1-.
♦ Installing
Note
Arrow points in direction of travel.
– Tapped hole faces rear
on installation.
– Screw in bolts -2- to half
bolt length.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
– Install rollover bar.
– Tighten bolts -2-.
– Perform remaining in‐
stallation operations in
reverse order of remov‐
al.
2 - Bolts (2x)
❑ Tightening torque 20
Nm
11. Rollover bar 71
Page 80
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
12 Isofix
12.1 Removing and installing front Isofix holder (front passenger's seat)
– Remove front passenger's seat ⇒ page 143 .
– Remove spring cover ⇒ page 148 .
– Unscrew bolts -2- (2x).
– Tightening torque 10 Nm
– Take out Isofix holder -1-.
12.2 Service installation of front Isofix holder (front passenger's seat)
Service installation of Isofix holder is not possible, as there is no
reinforcement on seat without Isofix.
12.3 Removing and installing rear Isofix hold‐
er
– Remove rear seat bench ⇒ page 166 .
– Remove left or right rear seat backrest ⇒ page 168 .
– Unscrew bolt -2-.
– Tightening torque 23 Nm
– Unscrew nut -3- (2x).
– Tightening torque 23 Nm
– Detach Isofix holders -1-.
72 Rep. Gr.69 - Passenger protection
Page 81
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with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
70 – Trim, insulation
1 Front door trim
1.1 Exploded view of fitting locations
1 - Removing door trim
⇒ page 74
2 - Inner transition piece
3 - Removing treble loud‐
speaker ⇒ page 79
4 - Treble loudspeaker holder
5 - Removing interior door han‐
dle ⇒ page 80
6 - Removing door handle
⇒ page 75
7 - Removing switch trim
⇒ page 75
8 - Central bolt
9 - Cap
10 - Window lifter switch holder
11 - Window lifter switch unit
❑ Driver's side
⇒ page 76
❑ Front passenger's side
⇒ page 76
12 - Removing loudspeaker
⇒ page 79
13 - Removing loudspeaker
trim ⇒ page 80
14 - Removing hinged pocket
⇒ page 80
15 - Pads for fasteners
16 - Outer transition piece
17 - Diode cover plate
18 - Removing diode ⇒ page 78
19 - Interior door handle holder
20 - Mirror adjustment switch
Audi TT 1999 ➤
21 - Mirror adjustment switch cover plate
22 - Removing sound absorber ⇒ page 77
1. Front door trim 73
Page 82
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
1.2 Removing and installing front door trim
1 - Door trim
❑ Remove cap -5-
⇒ page 75
❑ Unscrew bolt -4- (1x).
❑ Unclip inner and outer
transition pieces.
❑ Lift door trim approx. 20
cm out of door shell.
❑ Disengage Bowden ca‐
ble for interior door han‐
dle ⇒ page 74
❑ Unplug connectors
⇒ page 75
Pads -3- (7x) for fasteners
must be clipped in on installa‐
tion.
2 - Sleeve
3 - Pads
4 - Bolt
❑ Tightening torque 7.5
Nm
5 - Cap
Disengaging Bowden cable
– Pull Bowden cable -1- out of guide -2- and disengage.
Note
On installation, make sure hook -3- is facing upwards.
74 Rep. Gr.70 - Trim, insulation
Page 83
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
Unplugging connectors
– Unplug connectors at Item no. -2-.
Removing cap
– Guide mandrel -2- (∅ max. 2 mm) through hole on underside
of switch trim.
– Use mandrel -2- to press lug -3- slightly upwards and at the
same time turn cap -1- in direction of arrow.
– Detach cap -1-.
Audi TT 1999 ➤
1.3 Removing door handle and switch trim
– Remove door trim ⇒ page 74 .
– Remove sound absorber ⇒ page 77 .
– Unscrew bolt -2-.
– Press fasteners -4- and unplug connectors -3- (2x).
– Use screwdriver to prise out window lifter switches -5- (2x) at
Item no. -6- (4x).
– Take out window lifter switches -5- (2x).
1. Front door trim 75
Page 84
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
– Take out switch trim -2- with handle -1- in direction of arrow
-A-.
– Pull out switch trim -2- and then handle -1- in direction of arrow
-B-.
1.4 Removing and installing driver's window lifter switches
– Remove door trim ⇒ page 74 .
– Remove sound absorber ⇒ page 77 .
– Press fasteners -4- and unplug connectors -3- (2x).
– Use screwdriver to prise out window lifter switches -5- (2x) at
Item no. -6- (4x).
– Take out window lifter switches -5- (2x).
1.5 Removing and installing front passeng‐
er's window lifter switch
– Remove door trim ⇒ page 74 .
– Remove sound absorber ⇒ page 77 .
76 Rep. Gr.70 - Trim, insulation
Page 85
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
– Press fastener -3- and unplug connector -2-.
– Use screwdriver to prise out window lifter switch -1- at Item no.
-4- (4x).
– Take out window lifter switch -1-.
1.6 Removing mirror adjustment switch
Audi TT 1999 ➤
– Remove door trim ⇒ page 74 .
– Remove sound absorber ⇒ page 77 .
– Remove handle and switch trim ⇒ page 75 .
– Press fastener -2- and unplug connector -1-.
– Press springs, arrows (2x), and remove mirror adjustment
switch with cover plate.
– Use screwdriver to detach mirror adjustment switch -1- from
cover plate -2- at Item no. -3- (2x).
1.7 Removing and installing sound absorb‐
er for front door trim
– Remove door trim ⇒ page 74 .
1. Front door trim 77
Page 86
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
– Sound absorber -1- must be positioned all round inside of door
trim.
– When removing or installing sound absorber -1-, take care not
to damage sound absorber when fitting over fasteners or con‐
nectors.
– Press on sound absorber in area of sealing lip -2-.
1.8 Exploded view of door trim cable routing
– Remove door trim ⇒ page 74 .
– Remove sound absorber ⇒ page 77 .
1 - Cable to window lifter switch
2 - Cable to mirror switch
3 - Cable for anti-theft alarm in‐
dicator
4 - Cable to treble loudspeaker
5 - Cable to bass loudspeaker
1.9 Removing and installing cable for antitheft alarm indicator
– Remove door trim ⇒ page 74 .
78 Rep. Gr.70 - Trim, insulation
Page 87
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
– Remove sound absorber ⇒ page 77 .
WARNING
Felt mat on back of door trim is never to be detached.
Note
Fig. shows diode and guide removed.
– Squeeze fasteners -1- in direction of arrow and pull out diode
-2-.
– Cut off cable in front of and behind felt.
– Fit new diode with cable and secure cable above felt with ad‐
hesive tape.
3 - Diode guide
Audi TT 1999 ➤
1.10 Removing and installing treble loud‐
speaker
– Remove door trim ⇒ page 74 .
– Remove sound absorber ⇒ page 77 .
– Release fasteners -arrows- and take out treble loudspeaker
-3-.
– Detach cable -1- from door trim.
– Unplug connector from connector console -2-.
1.11 Removing bass loudspeaker
– Remove door trim ⇒ page 74 .
– Remove sound absorber ⇒ page 77 .
1. Front door trim 79
Page 88
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
– Unplug connector -1-.
– Unscrew bolts, arrow (4x).
– Detach bass loudspeaker.
1.12 Removing loudspeaker trim
– Remove door trim ⇒ page 74 .
– Remove sound absorber ⇒ page 77 .
– Drill out spot welds -2- (7x).
– Press out pins -3- and secure new loudspeaker trim -1- with
clips -4- as per Parts List.
– Or cut off pins -3- down to level of back of door trim and secure
new loudspeaker trim -1- with bolts and washers as per Parts
List.
– Or carefully weld pins with soldering iron.
1.13 Removing interior door handle
– Remove door trim ⇒ page 74 .
– Remove sound absorber ⇒ page 77 .
– Unscrew bolts -3- (2x).
– Pull out holder -4- in direction of arrow.
– Press out bottom of interior door handle -1- to front.
1.14 Removing and installing hinged pocket unit
– Remove door trim ⇒ page 74 .
– Remove sound absorber ⇒ page 77 .
80 Rep. Gr.70 - Trim, insulation
Page 89
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
– Disengage spring -1-.
– Drill out spot welds -3- (11x).
– Pull out tab -2- to front.
– Press out pins -4- of new pocket and secure new pocket with
clips -5- as per Parts List.
– Or cut off pins -4- down to level of back of door trim and secure
new pocket with bolts and washers as per Parts List.
– Or carefully weld pins with soldering iron.
Audi TT 1999 ➤
1. Front door trim 81
Page 90
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
2 Dash panel
2.1 Exploded view of fitting locations
1 - Removing glove box
⇒ page 1
2 - Removing front ashtray
⇒ page 18
3 - Removing front centre con‐
sole ⇒ page 17
4 - Removing footwell vent trim
⇒ page 15
5 - Removing footwell vent
⇒ page 15
6 - Removing steering wheel
⇒ page 55
7 - Removing steering column
switch ⇒ page 83
8 - Removing driver's storage
compartment ⇒ page 5
9 - Removing left dash panel
end trim ⇒ page 84
10 - Unscrewing left outer dash
panel fastener ⇒ page 84
11 - Removing airbag unit
⇒ page 53
12 - Removing dash panel in‐
sert ⇒ Rep. Gr. 90
13 - Removing photosensor
⇒ page 86
14 - Removing dash panel
loudspeaker ⇒ page 85
15 - Removing switch module
⇒ page 89
16 - Removing right dash panel
end trim ⇒ page 84
17 - Unscrewing right outer dash panel fastener ⇒ page 84
2.2 Removing dash panel
Note
Establish radio code number prior to removal.
♦ Removing:
– Disconnect battery earth strap at battery.
– Remove driver's airbag unit ⇒ Page ⇒ page 53 .
– Remove steering wheel ⇒ page 55 .
82 Rep. Gr.70 - Trim, insulation
Page 91
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
– Remove dash panel insert. ⇒ Rep. Gr. 90
– Remove driver's storage compartment ⇒ page 5 .
– Remove glove box ⇒ page 1 .
– Remove front centre console ⇒ page 17 .
Removing steering column switch
Driver's airbag unit and steering wheel removed
– Pull steering column out and down as far as it will go.
– Unscrew bolt -1- (2x), tightening torque 2.8 Nm.
– Detach handle -2-.
Audi TT 1999 ➤
– Screw out two cross-head bolts -arrows-.
– Tightening torque 0.6 Nm
– Detach upper trim for steering column switch -1-.
On installation, insert upper shell into lower shell hooks, swivel
downwards and screw on.
– Unscrew bolts -2- (2x). Tightening torque 0.6 Nm
– Screw out hexagon socket-head bolt -1-.
– Tightening torque 0.6 Nm
– Detach lower trim for steering column switch -3-.
2. Dash panel 83
Page 92
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
– Unplug connector -1-.
– Release fasteners -arrows- and detach coil connector with slip
ring from steering column switch.
Note
Coil connector with slip ring is only to be removed and installed
in centre position (wheels in straight-ahead position).
– Unscrew bolt -2-.
– Tightening torque 2.8 Nm
– Unplug connector -3- (2x).
– Detach steering column switch -4-.
Removing left dash panel end trim
– Use flat screwdriver to unclip left dash panel end trim -1-.
Removing left outer dash panel fastener
– Unscrew bolts -2- (5x).
– Tightening torque 3.5 Nm
– Pull out dash panel mounting plate to rear.
Removing right dash panel end trim
– Use flat screwdriver to unclip right dash panel end trim -1-.
Removing right outer dash panel fastener
84 Rep. Gr.70 - Trim, insulation
Page 93
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
– Unscrew bolts -4- (2x).
Removing “windscreen” defroster vent
♦ “Windscreen” defroster vent -1- cannot be removed without
destroying it.
– Pull defroster vent -1- upwards, starting at front.
– In doing so, break off fastener -2-.
Audi TT 1999 ➤
– Use nippers -1- to pull out fastener -2- by bending in direction
of arrow.
Removing loudspeaker
2. Dash panel 85
Page 94
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
– Unscrew bolts -2- (4x), tightening torque 0.8 Nm.
– Take out loudspeaker -3- and unplug connector -4-.
Removing photosensor
– Unscrew bolt -A-.
– Detach photosensor -B-.
– Unplug connector -C-.
Removing right brace
– Unscrew bolts -2- (3x).
– Tightening torque 5 Nm
– Take out brace -1-.
Separating dash panel air duct from heater/air conditioner
– Unscrew bolt -1- (2x), tightening torque 1.5 Nm.
– Detach dash panel air duct -2- from heater/air conditioner.
Unfastening dash panel
– Unplug connectors from switches -3-.
– Unscrew bolts -1- (2x).
86 Rep. Gr.70 - Trim, insulation
Page 95
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
– Unscrew bolts -2- (2x).
– Pull out dash panel to rear.
♦ Installing:
– Use cord or cable tie as extension for photosensor cable.
– Use cord or cable tie as extension for loudspeaker cable.
– Fit dash panel in position and insert photosensor and loud‐
speaker cable extensions.
– Clip -1- with felt pad -2-
– Press down dash panel slightly and slide it into clip -1-.
– By pressing gently, check positioning in clip -1-.
– Fit but do not secure steering column switch.
Audi TT 1999 ➤
– Fit lower trim for steering column switch -3-.
– Tighten bolts -2- (2x).
– Tightening torque 0.6 Nm
– Fit but do not tighten bolt -1-.
– Fit coil connector with slip ring.
– Fit steering wheel.
– Pull steering column switch with lower trim towards steering
wheel until dimension -a- = 3 mm.
– Secure clamp -1-.
– Tightening torque 2.8 Nm
– Tighten hexagon socket-head bolt -2-.
– Tightening torque 0.6 Nm
– Perform remaining installation operations in reverse order of
removal.
2.3 Dash panel operations
Removing air duct
2. Dash panel 87
Page 96
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
1 - Dash panel
❑ Removing switch mod‐
ule ⇒ page 89
❑ Removing “side win‐
dow” defroster vent
⇒ page 89
2 - Air duct
❑ Dash panel removed
❑ Unscrew bolts -3- (3x).
❑ Remove clips -4- (4x).
❑ Take air duct -2- out of
dash panel -1-.
3 - Bolts (3x)
❑ Tightening torque 1.5
Nm
4 - Clips (2x)
Removing and installing dash panel vent
Note
For greater clarity, Fig. shows view from underneath.
– Slide vent -A- out of dash panel fascia.
Note
Ensure correct positioning of dash panel vent on installation
(toothed wheels -B- facing downwards).
88 Rep. Gr.70 - Trim, insulation
Page 97
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
– On installation, guide locking element -A- into groove -B-.
2.4 Removing switch module
Note
For greater clarity, Fig. shows view from underneath.
♦ Dash panel removed
– Unscrew bolts, arrows (2x).
– Take out switch module -1- with switch.
Audi TT 1999 ➤
2.5 Removing “side window” defroster vent
– Use screwdriver to prise out defroster vent -1-.
– On installation, make sure slats are facing side window.
– Lugs -2- (3x) must fully engage.
2. Dash panel 89
Page 98
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
3 Removing and installing central tube
3.1 Exploded view of fitting locations
1 - Unfastening steering col‐
umn ⇒ page 91
2 - Removing wiring harness to
steering column switch
⇒ page 90
3 - Disconnecting earth point at
steering column ⇒ page 91
4 - Removing relay carrier
⇒ page 93
5 - Unfastening central tube on
driver's side ⇒ page 94
6 - Unscrewing bolt in plenum
chamber ⇒ page 93
7 - Removing brace at steering
column ⇒ page 94
8 - Removing centre earth
point ⇒ page 92
9 - Removing defroster duct
⇒ page 93
10 - Unfastening wiring har‐
ness on passenger's side
⇒ page 92
11 - Unfastening central tube
on passenger's side
⇒ page 94
12 - Unfastening front pas‐
senger's airbag wiring harness
⇒ page 92
3.2 Removing and installing dash panel central tube
– Removing dash panel ⇒ page 82
♦ Removing:
Unfastening wiring harness at steering column
– Unscrew bolts -2- (2x).
90 Rep. Gr.70 - Trim, insulation
Page 99
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
General body repairs, Interior - Edition 07.2005
– Unclip wiring harness to steering column switch at holders
-1- (2x).
Unfastening steering column at top
– Unscrew bolts -1- (2x).
– Tightening torque 23 Nm
Unfastening steering column in centre
Audi TT 1999 ➤
– Unscrew nut -4-.
– Tightening torque 9.5 Nm
– Pull out bolt -3-.
– Set down steering column.
Disconnecting earth point at steering column
– Unscrew nut -1-.
– Tightening torque 4 Nm
3. Removing and installing central tube 91
Page 100
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi TT 1999 ➤
General body repairs, Interior - Edition 07.2005
– Disconnect cable -2- from earth point.
Disconnecting centre earth point
– Unscrew nut -1-.
– Tightening torque 4 Nm
– Disconnect cable -2- from earth point.
Unfastening front passenger's airbag cable connector
– Use screwdriver to lift front passenger's airbag connector -1-
over retainer tab -2- and unplug connector in direction of arrow
-3-.
Unfastening wiring harness on passenger's side from central tube
– Unfasten wiring harness -4- at clips -2- and -3- from central
tube.
Unfastening wiring harness in centre from central tube
92 Rep. Gr.70 - Trim, insulation
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