Audi Q7 361 Service User guide

Serv

ice Training

Audi Q7

Self-study

programme 361

The Audi Q7

In

superior fashion, the Audi Q7 c

spor

tiness and versatility,

pr

emium-class

luxury.

On the road, it ex
and dy

namics of
possibilities of
visually display all its qualities and meets its
promise in
under any

cels with the driving performance

a

sports car, while redefi

its class off-road. A vehicle which

tec

hnological

conditio

ns.

Audi Q7 – the hi
creator of qua

gh-perf

ttro.

ormance SUV from the

ombines

advanced tec

terms, on any road and

hnology

ning the

The

and

very design of the Audi Q7 sets new standards.

Char

acteristic of the typical Audi dynamism are the
swooping cu
rela

tionship between the high wa
window ar
and

the powerful rear
pillars pr
Equally charac
styling are the shoulder line and
define the

rve of the roof

ea. The

dynamic sweep of the fr

ovide

a coupe-like profile.

teri

stic elem

side section.

line and the distinctiv

istline and narrow

with the sharply sloping D

ents of the current Audi

dyna

mic line which

ont se

e

ction

-

Taking the le

ad: With

de

sign & performa

nce

361_0

00

Contents

Intr

oduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4

Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8

Passenger protection

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Running gear. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Electric

Air conditioning

Infotainment

The se

lf-s

new vehicle compon

The self-study programme is not
The spe

cified values only serve for better underst

applicable at the time the SSP was com

For maintenance

al system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

system . . . . . . . . . . . . . . . . . . . . . . . . . . 54

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

tudy programme provides ba

ents or new technologi

and repair

sic informat

intended as a workshop manual.

oper

ations it is

ion on the

es.

anding and relate to the so

piled.

essential

that you refer to the current technical li

design

and fu

nction of

new vehicle models,

ftware versions

terature.

Note

Note

Intr

oduction

In a nutshell

Some Audi Q7 dimensions.

4

Admiss

Unla

Drag coeffi

Tank capacity

Tra

iler weight, braked

gradient)

Nose we

Combinat

Admiss

5-seater

ible total weight in kg

den weight

without dr

cient Cw

in

litres 100

in kg

ight

in kg 140 130

ion weight (12 %) in kg

ible roof

load in kg

iver in kg

0.37

(on 12 %

uph

ill

100

4.2l FSI

3.0l TDI

4.2l FSI

3.0l TDI

4.2l FSI

3.0l TDI

2895
2950

2240
2295

3500 3200

6495
6550

3065
3120

2270
2325

6365
6420

6/7-seater

361

361

_

045

_

046

Interior dimensions

Luggage

compartment volume

330 l

2035 l

36

1_105

_

103

361

775 l

361_10

6

361

_

104

5

Intr

oduction

Body

The

During
defined. For ex

●

●

●

●

●

●

body of the Audi Q7 has

the deve

body weight

t

orsional and bending values

crash

sche

duled development time

scope of simulation and protot

planned insurance ca

perf

ormance

lopment proce

ample:

teg

ory

been newly developed by Audi and is

ss, the most signif

ype devel

Significant features of the Audi Q7 body shell ar
torsional

va

lues at the body nodes and fo

Bodys

hell

The development

●

●

●

a

were furt

The fo
the typical Audi high quality expressed, for instan
in the dimens
narrow

6

of an open sky system,

an optional third seat row,

tailgate with integr

around to the rear side panel,

her i

mportant features.

cus was on

ional accuracy of the body parts,

gap widths and

ated rear

combining these elements

surface finish.

lights, which wraps

icant pr

opment

e a

rce application ar

with

ce,

the

not ba

operties and characteristic

high ov

erall

rigidity as well as optimised local bending and

eas.

The

self-su
Audi Q7 is built in four bodyshell versions:

●

Normal roof

●

Normal roof with three seat rows

●

Panorama roof (open sky system)

●

Panorama roof (open sky system) with thr
rows

The Audi Q7
an

additional cross-

ar

ea for
ve
the B and C-pillars are dispensed with. T
function is fulfilled by the open sky mo

attac

rsions with the panorama roof, the cr

sed on

a predecessor SUV model.

values were initia

pporting, lightwei

with thr

ee

piece in the spare wheel well

hment of the seat belts. On

ght steel body of

seat rows is eq

uipped with

the

oss-

pieces at

heir

dule.

lly

_

055

361

the

ee

seat

Joining tec

hniq

ues

In

order to
body rigidity, crash safety and optimised pr
pr

ocesses, the following joining techniques ar

employed on the Audi Q7:

meet the high demands

with regard to

–

Spot welding

–

Spot weld bonding

–

MAG welding

–

Laser soldering

–

Pla

smatron soldering

The

joining technique
areas subject to
using

a

structural

most frequently employed for

high loads is

adhesive.

spot weld bonding

Adhesive
Plasmatron soldering
La
Spot welding (not sh
MAG

ser soldering

welding (not shown)

own)

oduction

e

The

bonded jo

co

mprise

la

ser-soldered
and side frame) amou
Audi A3 Sportback
side pa
plasmatron
tech

nique
invisible seam. The
amounts to 1438
welded jo
using welding tongs, amounts to 15272

ints, with

5403

spot welds. The to

joints (s

nel and the rain channel are joined using

soldering. Like la

ensures

ints, used in areas which are inaccessible

a

eamless joints between roof

nts to 4420

and the Audi A6 Avant '05, the

a hi

gh-q

length of the left and right joints

mm. The

length of 79815

tal length of

mm. As with the

ser soldering, this

uality and

length of the MAG

a

virtually

mm.

mm,

the

361

_

057

7

Body

Materials

In

addition to
selection of the correct materials is vital for
ac

hieving both crash
Depending on loading and weig
suitable material is
component.

the joining techniques employed,

safety and body rigidity.

deter

ht, the most

mined for each

The propor
as
–

Standard steels

–

High-strength steels

–

Higher-strength and

–

Aluminium 6%

tions of the individual

follows:

32 %

materials used ar

36 %

26 %

super high-strength steels

The

wing panels, bonnet and
aluminium, making them some
lighter than their
further reduced through the use of various semi­finished pr
example,
withstand differing component load
reinf

orcements for the rear longitudinal members
and the floor
rolled

blanks.

steel counterpar

oducts*. With ta

the wall thic

cover pa

* Semi-f

inished pr

for the manufacture of parts and components

8

oducts: Pre-processed materials

tailgate are made of

22

kilogr

ts. The

ilored ro

kne

sses can be adapted to

nel are made from

lled blan

ing. Th

ammes

weight was

tailored

ks, for

e

The

sill tube consists of

manufacturing tolerances are lo

e

than for an ex
thic

knesses. In order to meet pedestrian pr
requir
chamber/bulk

truded tube, enabling smaller wall

ements, plastic parts are used in the ple

head area.

a ro

lled section because the

wer in this case

otection

num

Stan

dard steels

High strength

Higher-strength and super high-strength steels

Aluminium

steels

361_0

56

9

Body

Seat

concept

The Audi Q7 seats up to se
The Audi Q7 can optionally be fitted with el
A memory function is also available for the front
have been ergono
restraint. The headrest must be adjusted correctly for
individually adjusted long
the Audi Q7 is eq
longit

udinal

second seat row.

mically designed

uipped with

seat adju

Audi Q7 with six se

ats

ven occupants. As

such as to reduce to

itu

dinally and offer

a

stment. In the 6-

third seat row, the

ectrically-adjustable seats for the driver and fr

seater equi

Note

Please refer to the owner's ma
inf

ormation on operation of

vehicle seats.

10

the

standard, the Audi Q7 is eq

seats. The backrests of the driver and front passenger seats

distance between the occupant's head and the head

occupants the most generous leg room in this

nual for

this purpose. The seats in the second seat row can be

second

seat row features an easy-e

pment version, comfort

Audi Q7 with seven seats

Audi Q7 with

1_052

36

uipped with five seats.

seats are optionally availa

five se

ats

ntry func

ont pa

vehicle cla

tion and

ssenger.

ss. Wher

ble for the

361

361

_

050

_

049

e

The

head restraints of the second seat row do not

pr

event the backrests from fo
restraints of the second seat row are lowered, the
backrests do not fully reach
When folding down the backrests of the third seat
row, the head restraints lower automatically, making
it

ea

sier to fold

If

the seats in the second and third seat roads are
unoccupied, the head restraints can be lowered by
hand in or

down the backrests.

der to impr

lding.

When the head

the load floor position.

ove rearward visi

bility.

The easy-e
operated vi
backrest folds forwards to
base
en
exit the third

ntry func

a a le

also moves in the direction of tr

try function enables the occupants to

tion on the second seat row is

ver next to the head restraint. The

seat row.

a

certain angle. The seat

avel. The easy-

enter and

Attac

hment of the seat belts to
seat row is achieved via
advantage is that the seatbelts can be removed
from

the seats as requir
retracted and the latch plates can be inserted in th
D-pillar tr
pr
luggage c
folded down. The central belt bu
to

im. In

otected ag

the vehicle floor.

this manner,

ainst damage during loading of the

ompar

tment

when the backre

Persons above
from

being

a

height of

seated in the third seat row.

the seats of the third

additional belt buckle

ed. The

seat belts ar

the seat belts ar

sts ar

ckles ar

e a

160 cm are prohibited

s. Th

e

e

e

ttached

_

051

361

e

e

361

_

044

11

Passenger pr

otection

Passenger pr

otection in the A

Owing to
A high degr
In
range.

The passenger pr

its wide range of use, the Audi Q7 repr

meeting these requir

ee of passe

nger protec

ements, the Audi Q7 fits seamlessly

otection system of the Audi Q7

tion du

ring both

–

Airbag control unit

–

Driver and fr

–

Front side airbags

–

Sideguards (curtain airbags)

–

Crash sensors for front airbag, the so-c

–

Crash sensors at the B-pillars for side impact detection

–

Crash sensors at the C-pillars for side impact detection

–

Front belt

–

Ba

ttery isolation igniter

–

Switch in fron

–

Seat occupied sensor in front pa

ont passenger airbag, dual

tensioners

t-seat belt buckles

ssenger seat

stage

alled upfront sensors for fr

Side airbags for
with the corre

Owing to
markets, the eq

the second seat row and

sponding warning lamp are also availa

the

va

rious requir

uipment versions may vary, part

ements and statut

a key operated

12

udi Q7

esen

ted

on-road and off-road oper

comprises the following components and systems:

ble as optional equipment.

ory regulations placed upon vehicle

icularly with regard to

a

special challenge for the development team:

into

the high safety

switch for deactivation of the fr

Key

E24 D
E25 Front pa
E22

G128 Seat occupied sensor, front passenger side
G179 Side airbag crash sensor on driver side

G180 Side airbag crash sensor on front pa

G256 Rear

G257 Rear side airbag crash sensor on pa

ontal impact detection

river side belt switch

4 Key

oper

pa

sse

(B-pillar)

side (B-pillar)

(C-pi

llar)

side (C-pillar)

ation.

level of the current Audi

the US market.

ssenger

ated switch to de

nger side airbag

side airbag crash sensor on dr

ont passenger airbag

manufactur

side belt switch

activate fr

ers by the

model

ont

ssenger

iver side

ssenger

G28

3 Front

G28

4 Front airbag crash

J234
J285 Co
J393 Co
J533 Data
J623

K19 Seat belt
K75 A
K1

45 Front passenger side airbag de

airbag crash sensor for driver

(front end, left)

side (front end, right)

Airbag control unit

ntrol unit in dash pa

nven

bus diagnostic interface (g

Engine co

irbag wa

warning lamp (PASSENGER AI

sensor for front passenger

ience

system central control unit

ntrol unit

warning

rning lamp

system

nel insert

warning lamp

side

ateway)

activated

RBAG OFF)

_

001

361

N95

Driver side ai

N

250 Driver side airbag igni
N131 Fr
N132 Fr
N153 Driver
N154 Fr
N199 Side airbag
N200 Side airbag igniter on front pa
N
N252 Fr
N253 Battery

ont passenger
ont passenger

ont passenger

251 Driver side curtain airbag igni

ont passenger

rbag

seat belt tensioner ig

igniter on driver side

isolat

ion igniter

T16 C

onnector, 16-pin (diag

igniter

ter

2
side airbag igniter
side airbag igniter

seat belt

side curtain airbag igniter

tensioner ig

nostic connection)

1
2

niter

1

ssenger side

ter

niter

1

13

Passenger pr

otection

Airbag control

unit J234

The

purpose of the electronics integrated in

a

cceleration and to evaluate it so as to

a

cceleration during an impact, ex
unit. The
O
decide when and which safety components should be

electronics in the control unit

nly once all the sensor information has been evaluated by the co

ternal

the airbag control unit is to

detect

a

sensors are used in

detect

vehicle

a crash based al

The airbag co

ntrol unit is able to

detect frontal,

side and rear impacts.

A further task of
tensio

ners

other vehicle systems.

The

airbag electronics have the following main

ta

sks:

the airbag control unit is to

and airb

ag) depending on the type and se

activate the relevant restraint systems (belt tensioners or belt

–

Crash detection (front, side, rear)

–

Defined trig

and battery isolation igniter

–

Defined triggering of the second fr

stage

–

Eva

luation of all input information

–

Perma

system

–

Independent

a

defined time (approx. 150

–

Fault display via a failure

–

Storage of fault and crash information

–

Communication of a crash to

components via the drive CAN or discrete crash
output (conventional wiring)

–

Activation of seat

gering of the belt tensione

nent monitoring of the complete

power supply via

belt warning system

ont ai

a ca

pacitor for

ms)

warning lamp

the other system

rs, airbags

rbag

airbag

For inf

ormation on
Workshop
5051 or VAS 5052. The guided fault-finding or guided function
airbag control unit must be c
correctly,

Manual in ELSA. An airbag co

this may re

14

which components must be replaced following an accident, please refer to the applicable

sult in

oded and adapted to the re

malfunctions in other vehicle systems,

ntrol unit can o

impact. In order to

addition to

one on the info

activated.

verity of

nly be repl

levant vehicle. If

ntrol unit electronics can the electronics

the impact as well as signalling the crash to

aced with

applications must be used for this

e.g. the ESP.

detect

vehicle deceleration or

detect vehicle deceleration or

the sensors

coding or adaption is not performed

instal

rmation received from

the aid of an online-capable VAS

led inside the control

the sensors.

purpose. The

361

_

007

Data exchange

The

airbag control unit is connected to

the drive CAN.

The airbag
–

Activation of wa

–

Activation of seat

–

Diagnostic data

–

Crash signal

–

Crash inf

–

ESP data

–

Front passenger airbag activated/deac

control unit transmits the following inf

rning lamp K7

belt warning system

ormation for the control element test

5

tivated status (display in dash panel insert)

The airbag
–

Dimming for the fr

control unit

evaluates the follow

ont passenger side airbag de

ing information from the data

The

information

locking system, cut off

that a crash has occurred is

the fuel supply,

activate the hazard warning lights

used by ot

Ai

rbag warning lamp

K75

Activation of the airbag warning lamp, which is loca
CAN bus. In
auto

matically by the dash panel insert.

the absence of a

data message from the airbag control un

Rear impact re

During a rear
ai

rbag co

rel

evant signals to the airbag electronic

sign

als ex

cognition

impa

ntrol unit and the crash

ceed

ct, the vehicle is strongly a

a

specified

va

lue, the belt tensioners are trig

sensors G283

s. Th

e airbag electronics evaluate the information. If

ccelerated in the direction of trav

ormation

activated warning lamp (Passenger Airbag Off)

and G

via the dr

her control un

ted in the dash panel insert J285, is

284 de

tect this

gered and the battery

ive CAN:

bus:

its in or

der to u

etc.

it, the warning

vehicle acceleration and tr

nlock a locked central

el. The crash sensors in the

isolation igniter is activated.

performed via the

lamp is switched on

ansmit

the sensor

the

15

Passenger pr

otection

Seat

belt warning system

The Audi Q7, like the Audi A6 ´
pa

sse

nger.
When the ignition is switched on, the airbag control unit evaluates the info
pa

ssenger belt buckle switches as

The

airbag control unit de
values of the fr
seat be

udible signal.

a

ont passenger side seat oc

lts, they are aler

Timing di

agrams for the seat belt

Visual and audible signals –

seat

Terminal 15

Vehi

Fasten

Seat belt warning sy

Aud

cle speed

ed

stem warning lamp

ible signal

05 for example, features a seat belt warning function for the driver and front

tects wh

ted via the

warning system

belts are fastened

well as information from

ether the fr

ont passenger

cupied sensor. If

seat

belt warning sy

late

On

Off
v >

10 km/h

v <

10 km/h

Yes

No
On

Off
On

Off

the fr

seat is oc

the driver or fr

stem wa

Time

rning lamp K19 in the dash pa

Visual and audible signals –

seat

belts not fastened

Terminal 15

Vehi

Fasten

Seat belt warning sy

Aud

cle speed

ed

stem warning lamp

ible signal

On

Off
v >

10 km/h

v <

10 km/h

No
On

Off
On

Off

Time

The

warn

ing is re

activa

ted if the seat

16

belt

sta

tus changes du

ring "termi

nal

15

on".

ont passenger side seat oc

rmation from

cupied or not ba

sed on the resistance

ont passenger

the driver and fr

ont

cupied sensor.

have not fastened their

nel insert and an

361

_

016

min.

90

sec.

_

018

361

Seat

occupied sensor, fr

ont passenger side G128

The front passenger side seat
consists of a plastic film
individual pr
side seat occupied sensor is located in the fr
pa

sse
padding. The seat occupied sensor ex
the rear part of the fr
positioned such that the relevant ar
surface is monitored.

essure sensors. The front passe

nger seat, between the seat cover and

ont passenger seat and is

Depending on the lo
fr

ont pa

ssenger
modified. When the fr
occupied, the resistance value of the fr
pa

sse

nger side
As the load incr
Above

a load of

detects "seat occu

ad, the resistance

side seat occupied sensor is

ont passenger seat is

seat occupied sensor G128 is high.
eases, the re

appr

ox.

pied".

The airbag
from
and from the belt buckle switches for
warning system.

control unit requires the

the front pa

ssenger

Resistance va

Evaluation

approx. 430 Ohm and high

approx. 140 Ohm and lowe

lue of G1

occupied sensor

inco

rporating several

tends

ea of the seat

sistance value falls.

5 kg,

the airbag control unit

er

r

information

the seat

seat occupied sensor G128

28

nger

ont

across

value of the

not

ont

belt

Seat not occupied

Seat occu

_

017

361

pied

17

Passenger pr

otection

Belt switch

Driv

er

side belt switch

Fr

ont passenger side belt switch E25

E24

(In the

driver and front passenger side belt buc

Information as to
pa

sse

nger have fastened their seat belts is required
by the "seat belt warning system" function. In order
for the ai
the belt switches
belt buckles for the front
The
switches
closed" through the action of an external magnetic
field. The magnet
located near the r
not in

rbag

switches fi

serted, i.e. the r

When the latch plate is inserted in the belt buckle,
the spring thorn is moved.
The

mag

upon the r

net

Based on the measured re
control unit recognises wh
fastened or not.

Spring thorn

Reed switch

whether or not the driver and fr

control unit to receive this informat

E24 and E25 are integr

seats.

tted are r

switch from

1 in

eed switch when

1 in

the spring thorn no l

eed switch,

"switch open" to

the so-called spring

eed switch is closed.

i.e. the r

eed switch

sistance value, the airbag

es. The reed

the latch plate is

onger acts

eed switch is open.

ether the seat belt is

3

61_020

3

ated in th

"switch

361_041

18

thorn is

Spring

kles)

ont

ion,

e

thorn

Magnet I

Spring

Reed sw

61_021

thorn

itch

361

_

019

36

1_034

36

1_040

Driv

er seat belt

Fr

ont passenger seat belt tensioner

tensioner igniter 1 - N153

The front seats of
pr

oven compact tensio

work a

cco
and are
unit. During a crash, the belt tensio
activated before the fr
excessive loads to the occupants,
eq
load
allowing the occupant to move forwards into
already deployed airbag.

rding to

triggered

uipped with belt force limiters. Above

level, th

In

the event of

trig

gering, the relevant belt tensioner is also

trig

gered. In the event of a rear
tensioners are also activated, depending on the
seve

rity of the impact.

the Audi Q7 is eq

ners. The

the "ball

electrically by

ont airbags. To prevent

ese force limiters slacken the belt,

a

side impact with

uipped with the

belt tensioners

gear" principle

the airbag control

ners ar

the belt r

a

side ai

impact, the belt

rbag

Key oper

ated switch to

deactivate front passenger side

The

key oper

pa

sse

pa

sse

K

145 (PASSENGER AIRBAG
order to
illuminated fr
warning lamp K145 (P
indicates to the
airbag is

ated
nger airbag
nger side airbag de

deactivate the fr

deac

switch to deactivate fr

E224 and the corre

ont passenger side airbag

ASSENGER AIRBAG OFF)

occupants that the front

tiva

ted.

ont

sponding fr

activated warning lamp

OFF) are required in

ont passenger airbag. An

deac

passenger

The

control unit unequivocally recognises the
switch position by means of the arra
four resist

ors which are connected in-line,

ngement of

If

the airbag

oper

ated switch, a fa
the fr
lamp K145 (P
flash.

control unit detects

ult me

ont passenger side airbag

ASSENGER AIRBAG OFF)

mory entry is made and

a fa

ulty key

deac

tivated warning

begins to

igniter 1 - N154

(not

USA)

eels ar

specified

the

ont

tivated

pair

-wise.

e

e

Seat belt

airbag

E224

_

053

361

Airbag control unit

J234

361

_

025

19

Passenger pr

otection

Airbag

The front airbags on the driver and fr
Depending on the nature
two

ignitions (from approx. 5ms to 30

during a crash can be reduced by means of a

and severity of the accident, the airbag control unit sets

Both pr

opellant charges are

following

airbag deployme

ignited in all cases. This prevents

nt.

Driv

er

airbag

N95 D
N

river

250 Driver side ai

side airbag igniter I

rbag

igni

ter II

The gas

Propellant
charge I

generator in the driver ai

Metal filter

Bores

rbag works

Priming charge

The

driver's airbag gas generator is flexibly
This minimises any
The gas generator acts as a vibration damper.

20

vibration at the steering wheel.

ont passenger sides are eq

ms). The loads which the driver and fr

delayed ignition of the pr

Ig

niter I

using two

mounted in

pyr

Housing

a rubber ring.

otec

Ig

niter II

uipped with tw

a pr

opellant charge from re

hnic pr

Cap

o-stage gas

a

ont passenger are exposed to

opellant charges.

opellant char

generators.

time delay between the

maining ac

ges.

Metal filter

Propellant charge II

tive

Propellant charge I

361

_

014

Driv

er

side airbag

igniter I - N95

The

electrical
actual pr
pr

opellant ch

opening up a passage to the airbag via

igniter

I,

opellant charge I via the bor

arge I ex

which is activated by the airbag control unit, igni

ceeds

a

specified threshold, the housing of the gas ge

Priming charge I

Metal filter

Propellant
charge I

Bores

Driv

er

side airbag

igniter II - N250

Following
second pr
and flows into

Combustion
chamber
Propellant charge I

a

opellant char

Metal filter

defined delay,

ge. At

the airbag

the airbag control unit ener

a cert

via the combustion chamber of

es.

When the gas pressure generated thro

the me

tal filter. The airbag is deployed.

Housing

Ig

niter I

gises

ain pressure, the genera

the second

ted gas

the first stage.

Cap

tes the priming charge I. This ig

ugh co

nerator becomes def

mbustion of

Metal filter

the

ormed,

Propellant charge I

electrical ig

lifts up the cap of the second stage

niter,

which directly igni

Propellant ch

arge II

Igniter II

Metal filter

Combustion
chamber
Propellant
charge I

nites the

361

361

_

015

tes the

_

013

21

Passenger pr

otection

Fr

ont passenger

airbag

N13

1 Front passenger side airbag igniter I

N13

2 Front passenger side airbag igniter II

The front pa

ssenger ai

rbag module h

ousing is made of plastic.

A two-stage hybrid gas generator is used on the pa
contained in
cold gas in
(approx. 98 %)

The

Ig

niter I

Ig

niter II

22

a

compressed gas

the compressed gas

and helium (approx. 2

coil springs ensure that the propellant charge tablets are held in po

Priming charge I

Priming charge II

cylinder,

cylinder is

%). The airbag volume is

Propellant charge II Coil spring

which is activated

under

Propellant ch

ssenger side. Two pyrotec

a pressure of approx.

arge I

separately by the airbag

approx.

C

oil spring

Burst disc

hnic propellant char

250

bar and is

140

litres.

sition

(pretension).

control unit. The

a

mixture of ar

Filter

Compressed gas

G

as: Arg

Pres

sure:

on, approx.

helium,

a

pprox.

ges ar

so-c

gon

cylinder

approx.

250

361

e

alled

98 %

2 %

bar

361

_

008

_

002

Fr

ont passenger side

airbag

igniter I - N131

The

airbag control unit energizes the igniter I and the priming charge I is ignited. This in turn ignites the
actual pr
cylinder until the burst disc breaks at
the metal filter and it is deployed.

opellant charge I. The comb

ustion gas generated increases the pressure in the compressed gas

a pre

determined pr

essure value. The gas

mixture reac

Priming charge I

Propellant ch

arge I C

oil spring

Bu

rst disc

Ig

niter I

Fr

ont passenger side

The

oper
supplied to
pr

ating principle of the second stage is

the airbag through co

essure inside the airbag during the

airbag

igniter II - N132

mbustion of

second stage.

identical to

the second propellant ch

that of the first. An additional vo

arge. There is no

further increase in

Ig

niter II

Priming charge II

Propellant charge II Coil spring

Burst disc

hes the airbag via

Filter

361

lume of gas is

Filter

361

_

_

003

004

23

Passenger pr

otection

Side airbags

N19

9

Side air bag igniter on driver

N20

0 Side air bag igniter on front passenger side

N20

1

Rear side airbag igniter on driver side

N20

2

Igniter for rear side airbag on passenger side

The

side airb
as

the modules installed in other Audi models in
terms of design and function.
been ad
concept of the Audi Q7. For the first time, so-c
"sof

t-cover modules" have been used for the side
airbags on
modules, the usual plastic casing has
by

a fa

adva

ntage of this cover is better integrat

backrest due to

ags for the first seat row are the same

apted to

bric cover. In

the passenger

the se

cond seat row. With these

its soft

addition to

However,

compar

its low weight, the

surface.

In

some markets, the side airbags for the second

seat row are

optional eq

uipment.

If

the airbag control unit J234
which fulfils the triggering cr
rel

evant side airbag igni

Only

the side airbags on

impact has occurred ar

In

the first seat row,

tubu

lar pyrotechnic gas

24

seat row,

hybrid gas

the gas generat

generat

detects

iteria, it energi

ter.

the vehicle side where the

e activated.

generators; in the second

ors are used.

side

they have

tment

alled

been replaced

ion into

a

side impact

ses th

ors used are

the

First seat row side airbags

e

Seco

nd seat row

side airbags

361

_

006

_

005

361

Side airbag
Si

de airbag igni

igniter on

ter on fr

driv

ont pa

er side

ssenger si

N199

The relevant side ai
pr

opellant c
deplo

yed.

Priming charge

Igniter

Rear side airbag igniter on driver side N201
Rear si

de airbag

The propellant charge is ignited by the ig
generated gas breaks both burst discs and becomes
mixed

with the cold gas
cylinder. The gas
filter into

the airbag,

rbag igniters are energi

har

ge. The

combu

igniter on fr

contained in the cold gas

mixture flows

deploying it.

stion gas

Propellant charge

ont passenger si

through the metal

sed by the airbag co

generated flows through the metal filter into

niter. Th

Ig

niter

Filter tube with vents

Pro

pellant charge

Burst disc I

de

N200

e

B

urst disc II

de

ntrol unit. The

Metal filter

N202

Fabric cover

priming charge then ig

the airbag. The

Vent

Vent

Cold gas cylinder

Gas:

arg

Pressure:

on, approx.

helium, approx.

a

pprox.

240

97 %

3 %

bar

nites th
airbag is

361

_

022

361

_

066

_

037

361

e

25

Passenger pr

Curtain airbag

(sideguard)

Driver side cu
Fr

ont passenger side curtain ai

rtain

In

order to
a side impact, the curtain airbag co
complete side window area from
D-pillar. In the case of these modu
generator is instal
airbag is filled via
helium (appr
used, which is stored at 300
gas cylinder.
the pr
pr

essure generated. The pressure in the
compressed gas
pr

essure is reac
penetrates into
lance.

better pr

ox.

80 %)

When the airbag control unit

opellant charge, burst disc I breaks due to

hed, the gas breaks burst disc II and

the airbag via

The airbag volume is approx. 40 litres.

Bu

rst disc I

Propellant ch

Deployed sideguard

arge

26

airbag

otect occupants in the event of

led in the fr

a gas lance. A cold gas

and ar

cylinder increa

otection

igniter N251

rbag igniter N252

vers virtually

the A to

les, the hybrid gas

ont roof area. The

gon (approx. 20 %) is
bar in

a compressed

ses. When

the filter and the gas

Compre

Ga

s: helium, approx.

the

mixture of

ignites

a cert

ssed gas cylinder

ar

gon,

approx.

the

the

ain

80 %
20 %

Burst disc II

Filter

361

361

361

_

_

_

011

010

009

Ba

ttery isolat

ion ig

niter N253

The

battery isolation ig

the star

ter and al
battery in
perf
airbag or belt tensioner is triggered, the battery
isolation igniter is also activated. When the
pyr
pr

essure generated pushes the pin, which is

a

ttached to a

between the two

the

ormed by the airbag control unit. Whenever an

otec

event of

hnic pr

opellant charge is ignited,

piston, breaking the con

niter serves to

ter

nator ca

ble from the vehicle

a crash. Activation is

terminals.

disconnect

the gas

nection

The battery isolation igni
following activation.

ter must be replaced

Dia

gnostic monitoring is

control unit

J234.

performed by the airbag

In the Audi Q7, the battery isolation igniter N
in

stalled in an electrics box bene

seat.

Battery isolation igniter

Connect

ing element

with

terminals

ath the front left

Pin

Igniter

253 is

1_023

36

361

_

033

Batt

ery isolation igniter activated

Pin with piston

Igniter

Connecting element
with term

inals

361

_

024

27

Passenger pr

otection

Supplementary passenger pr
North Americ

an market

otect

In

order to

with

meet the statut

a

spec

ial seat occupied

ory and market-specific requir

sensor for the front pa

ssenger seat and a ro

Roll-o

ver

An additi
If

onal sensor for roll-o

vehicle roll-over is

detected, the belt

ver detection has been integr

tensioners and curtain airb

Fr

ont passenger side seat

occupied sensor

If

the airbag
a child seat is installed,
A deactivated fr
airbag de

control unit

ont passenger airbag is indicated to

acti

vated warning lamp (PASSENGER AI

J234 receives the information that the front passenger seat is not occupied or

the airbag control unit

switches off

the occupants via illumination of the fr

RBAG

The

system essentially comprises the following components:

–

Seat padding

–

Seat occupied sensor mat

–

Pressure

–

Seat occupied recognition

–

Front passenger side belt switch E25

–

Seat belt force sensor for seat occupied recognition G453

–

Front passenger side airbag deactivated warning lamp K1

–

Airbag control unit J234

sensor for seat occupied recognition G4

control unit

J706

Fr
deac

ont pa

ssenger side

tivated wa

rning

airbag

lamp

Seat

padding

Airbag control unit

Connector
the seat

Seat occupied

under

sensor mat

Seat occu
control unit

pied recognition

C

ut-off point

The

positions of the components installed are specified
individual system components be exchanged. Please proceed
contained in the applicable Workshop Manual and the g

28

ion system features for

ements for the US ma

ated into

the front

OFF) and

52

and must on no account be changed. Neither may

uided fault-finding.

the airbag control unit

ags ar

passenger airb

a

message in the dash panel insert.

45 (PA

SSENGER

Pressure sensor
for
recognition

exac

tly in

rket, the Audi Q7 is eq

ll-over

detection system.

e acti

vated.

AIRBAG

Seat

belt f

for

seat occ

recognition

seat

occu

pied

a

ccordance with the instructions

ag.

OFF)

orce sensor

upied

J234.

ont pa

Fr
belt switch

ssenger side

ont pass

the

uipped

that

enger side

361

_

027

Seat

occu

pied recogn

ition

control unit

J706

The seat
occupied reco
the seat belt force sensor for seat occupied detect
the seat belt. Ba
recognition control unit determines the load on the front passenger seat. If
approx.
sea
is deactivated by the airbag
a
by the child seat onto
a ch
and a
and the fr

When the ignition is sw
occupied recognition control unit detects and reacts to any chan
load chan
pa
the seat occupied recogn

occupied re

20 kg and

t occupied recognition control unit and co

specified value, the

ild seat and the airbag control unit deactiva

low belt f

ont passenger airbag remains activated.

ges occurring during driving operation from resulting in i

sse

nger ai

cognition control unit J706

gnition G

rbag, the system operates

452

and seat belt force

sed on the signal from the pressure

a

very low or no

seat

the seat cushion via the seat

orce,

the seat occupied recognition control unit assumes that

itched on, the sensor information is evalua

ition control unit com

belt force at all is detected, the pr

control unit. If the load on

occupied recogn

with

evaluates the signals from

sensors for seat occu

ion pr

ovides inf

sensor for

mmunicated to

ition control unit recognises that a

a cert

the seat is e.g.

belt. The

tes the front passenger air bag. Abov

ain delay

munic

ates vehicle movements to

ormation on how high the tens

seat

the airbag control unit. The front passe

control unit recognises

ted continuo

ges in seat occupancy. In order to pr

mmediate de

during

driving. An acceleration

the pressure sensor for seat

pied recognition G453. The si

occupied recognition, the seat occupied

the load is below

esence of

25 kg and the belt force exceeds

gnal from

ion force is on

a ch

ild

dditional pressure is being applied

a

the seat is occupied by an adult

usly. This ensures that th

activation of the fr

the electr

seat is

iden

the pr

esence of

e a load of a

sensor instal

onics.

tified by the

nger airbag

pprox. 25 kg

e seat

event th

ont

led in

e

Seat load

Less than approx. 20 kg

E.g. 25 kg

More than appr

V

ox. 25 kg

Belt force

ery low or none

Very high

Low

Recognitio

Ch

ild seat

Ch

ild seat

Adul

t

n

Data exch
performed via the LIN bus. Diag

ange between the airbag control unit

nostic monitoring is performed by the ai

J234 and the seat occu

pied recognition

rbag control unit.

control unit

J706 is

29

Passenger pr

Seat

belt force sensor for seat occu

The

seat belt force sensor for seat occupied
reco

gnition is integrated in the front
belt buckle. It basically consists of two
move in relation to
which is loca
A calibrated
position. In
act on the Hall sensor. When the seat
correctly fasten
belt buckle.

Init

ial posi

tion

30

one another and

ted between the magnets I and II.

spring ho

this po

lds the parts in the

sition

the magnets I and II do not

ed,

a

tensile force is applied at the

otection

pied re

passenger

parts which

a Hall se

initial

belt is

361_0

38

cognition G453

seat

nsor,

Magnet I

Hall sensor

Ma

Spring

The

distance between the Hall sensor and magnets I
and II chan
Hall
the Hall sensor also changes. The
force on
towa
co

ntrol unit receives this

evaluates it.

ges. The action of the magnets on the

sensor and co

the belt buck

rds one another. The seat occupied recogn

nseq

uently the voltage signal of

le, the more the parts move

information and

higher the tensile

A mech

anical stop ensures that the sensor element

is not torn apart in

Tensile force app

gnet II

lied

the

event of

a crash.

361_039

ition

Belt

switch

Driver side belt switch E24
Fr

ont passenger

side belt switch E2

5

The

belt switches (reed
belt buckles of
plate is not in
and II

serted in the belt buckle, magnets I

act on the r
the two magnets cancel
switch is open.

switch

the front

es) are installed in the

seats. As long as the latch

eed switch. The mag

each other out. The reed

netic forces of

Spring thorn

Magnet II

Magnet I

Reed switch

361_036

Spring

thorn

36

1_043

Magnet I

Two resist
Depending on the position of
measurement takes place via one or both resist
Based on the measured re
control unit recognises wh
fastened or not.

ors are integr

ated in the circuit.

the r

eed switch,

sistance value, the airbag

ether the seat belt is

The

to
plate is inserted in the belt buckle,
the spring thorn mo

spring th

orn. The magnet II is perman

the housing, as is the r

The magnet II al

magnet I is loca

The reed

Spring

Magnet II

ors.

switch is closed.

thorn

36

1_034

ted at the tip of the moveable

eed switch.

ves with the magnet I.

one acts on the r

eed switch.

Reed switch

36

1_042

ently attached

When the latch

Magnet I

361_035

361

_

029

31

Passenger pr

otection

Pressure

sensor for seat

occupied recogn

The pressure sensor for seat occupied recognition
G45

2

and the seat occupied

single

filled

component. The seat occupied sensor mat is

with

seat padding of the fr

the seat occupied sensor mat change
pr
for seat occupied recognition and is co
in the form of
recognition co
load, the voltage ranges between
and
control unit supplies the pr
voltage of

a silicone-like gel and is located un

fr

ont passenger seat is occupied, the pr

essure change is de

a

4.8 V

(low

5 V.

Note

The re
must always be installed t

The

- Seat

- Pressure sensor G452,

- Seat-occupied sensor mat,

- Seat padding,

- Wiring harness between seat occu

sensor

mat are integr

ont passenger seat. When

tected by the pr

voltage signal to

ntrol unit J706. De

load). The seat occupied recognition

place

service kit consists of:

occupied recognition control unit

essure se

ment part (service kit)

s. This

essure sensor

the seat occupied

pending on

0.2 V

nsor with

ogether.

ated in a

der the

essure in

mmunicated

the

(high load)

a

seat

pied recognition

ition G452

the

occupied sensor (USA) is pre-calibrat

J706

control unit

J706

ed; the components

and pr

essure sensor G452.

361

_

028

The pressure hose and

the seat occupied sensor mat must never be kinked during asse

mbly.

32

Driv

er seat belt

Fr

ont passenger seat belt tensioner

tensioner igniter 1 - N153

In

the Audi Q7 for the North American market, belt

reels

with
called rack-a
the driver and fr
row,
on the ou

newly-developed belt tensioners, so-

nd-pinion belt

ont pa

the familiar ball

ter

seats.

tensioners, are

ssenger. For the second seat

gear belt tensi

oners are

Trig

gered elec

pyr

otec

hnic pr

tric

ally by the airbag

opellant ch

arge drives

control unit, the

a

piston
integral rack. This, in turn, is connected to
torsion shaft (b
The

vertical

a rotary mo

elt shaft)

movement of the rack is

via gears and

a free-wheel.

conver

tion via the gears. The rack drives
gears I and II via the pinion. The gear II and
race of the free-wheel for the torsion shaft are
perman

ently attached to each other.
race is turned, the rollers are pr
the ou

ter race and torsion shaft engage positively.

The to

rsion shaft
begins. Te
the rack rea

then turns and belt tensio

nsioning ends as

ches the damp

ing element or the

soon as the piston with

counterforce exerted by the seat belt ex
force of the pr

opellant charge.

When the outer

essed inwards until

ceeds th

During

normal

oper

isolated from

ation, the belt r

the tensioner unit by the fr

eel is

ee-wheel.

igniter 1 - N154

Initial position

used for

the

the outer

used

with an

ted into

the

ning

e

After triggering

Damping element

Gear

1

Pi

nion

Gear 2

Roller

Outer race of the fr

ee

wheel

Gas

T

ors

Piston with rack

generator

ion shaft

361

_

030

Rollers in init

Outer race of the free wh

T

orsion shaft

Position of rollers upon positiv

engagement of ou

torsion shaft

ial position

ter race/

361

361

eel

_

031

e

_

032

33

Engine

Engine/gearbox combinations

For the market intr
conjunction with the (09D) 6A 6-

oduction of the Audi Q7, only the 3.0l V6

speed automatic gearbox.

3.0l

V6

TDI common rail

4.2l

V8

FSI direct injection petrol engine

Two petrol engines featuring FSI tec
6-speed manual ge
later date.

34

inject

ion engine

arbox

and the AL

hnology

420

and

and AL

TDI and the 4.2l V8 FSI engines will be

AL

750 6A 6-

AL

750 6A 6-

a

common rail diesel

750

6-speed automatic

Note

For the design and function of th
p

ower tr

self-study pr

- Gearbox.

speed automatic

speed automatic

engine in

gearbo

ansmission, please refer to the

ogramme SSP

gearbox

gearbox

conjun

xes

ction with

will also be available at

available in

e

363

Audi Q7

361

the ML

400

a

_

107

4.2l V8 FSI

The

engine n

engine block at

umber is located in the inner V of

the left cylinder head.

the

Technical features

–

Chain

–

Selec

–

Individual pencil igni

–

2

–

4 La

drive on the power ta

tive FSI petrol

primary and

2

main catalytic conver

mbda probes

direct inje

tion co

ke-off side

ction

ils

ters

3
6
1
_
1
2
6

Torque / power cu

rve

Torque in Nm

Power output in k

W

Engine speed in rpm

3
6
1

Tec

hnical data

En

gine code letters

Design

Capacity

Output

Torque

Bore

Stroke

Compression

Distance

Weight

Firing order

En

gine management

Exha

ust gas recir

Exhaust-emission control

Emis

sion standar

be

tween cy

linders

culation sy

d

stem

BAR

V8 petrol engine,

3

4163 cm

257 kW

(350 PS) at 6800

440 Nm at

3500

84.5 mm

92.8 mm

12.5:1

90 mm

a

pprox.

198 kg

1 - 5 - 4 - 8 - 6 - 3 - 7 - 2

Bosch

Motr

onic MED 9.

Internal exhaust gas recirculation

2

primary catalytic

EU

4

90° V angl

rpm

converte

e

rpm

1.1

rs,

2

main catalytic converters

Engine

3.0l V6 TDI C

Technical features

–

Chain

–

Co

–

8-hole

–

Tur

–

Steel glow plugs

–

Diesel part

Torque / power cu

36

drive on the power ta

mmon rail in

in

jection pressure

piezo in

bocharger with

Torque in Nm

Power output in k

ommon Rail

jection

jectors

variable turbine geometry

icul

ate filter

rve

Tec

hnical data

En

gine code letters

Design

Capa

city 2967

Output

171 kW

Torque

500 Nm from

Bore

83 mm

Stroke 91.4 mm

Compression 17.0:1

Distance

between cy

Weight

Firing order

Engine management

Exhaust gas

Exhaust-emis

Emi

1 - 4 - 3 - 6 - 2 - 5

ssion

standard

ke-off side

system with 1600

W

linders 90 mm

recirculation

sion control Oxidation catalytic converter, Lambda pr

bar

BUG

V6 di

approx.

Bosch EDC 16 CP

C

ooled ex

EU

4

esel en

cm

Engine speed in rpm

gine,

90° V

3

(233 PS) at

4000

1750 to

2750

221 kg

haust gas re

circulat

angle

rpm

rpm

ion, switched

obe, part

icul

ate filter

361

_

110

_

048

361

3.0l V6 TDI modifications

Lateral

incl

ination

The

oil supply in the engine must be
For this reas
that
Additional baffle plates are integrated in
a

deeper sump lower section, the oil suction pipe always remains submer

on, in the case of the Q7, the oil sump and oil suction pipe have been designed

suffi

cient oil can be supplied to

Upper section of
baffle plate function

sump with

ensured

the pump even in the case of

during extreme off-road situations.

the upper section of

the sump in or

extr

eme la

Oil pump

Note

Extr
permitted on

teral inclination of

der to re

ged in the oil.

Oil suction point

action of the engine oil is not

tain the oil. Owing to

Lower section of

361_10

9

and modified so

this engine.

the vehicle.

sump

361

_

108

37

Engine

4.2l V8 FSI

Cr

ankcase

With
diameter is of
with in order to achieve
al

uminium

38

a

length of

cyli

430 mm

84.5 mm

nder barrels is performed by means a

and

a

width of

520
and the distance between cylind
a

wall thic

kness of 5.5 mm

mm, the

90° V

cylinder crankcase is very compact. The bor

ers is

90

between the cylinders. The fini

three-

mm. Cylinder liners have

stage honing and eros

Note

For inf

ormation on design and fu
please refer to the self-study
programme SSP

sh-machi

ion proces

Bearing bridges

Cylinder cran
sect

been dispensed

ning of the

s.

Cy

linder crankcase,

section

kcase, lower

ion

377.

e

upper

361

_

120

nction,

Oil circuit

The

oil supply is ba
pump through optimisation of the crankshaft
impr

oving
loca
The
to re

dega
ted on the oil sump in front of
oil filter module is maintena

place with

Oi

l/wa

ter heat excha

sed on

ssing. In

out special t

nger

order to

a

classic we

ools. It is made of

t-sump conc

ensur

the engine.

nce-free

e a

ept. It has

bearin

low oil temperature, an

and is inst

gs. For this reason,

alled in the inner V of the engine. The filter element is

a

polymer fleece.

been possible to re

the oil remains in the sump for

oil/wa

ter heat exchanger is used, which is

duce the de

Oil

filt

er

Pressure oil

Ma

in

oil gallery

Oil

pump driven by chain

livery rate of

with polymer fl

cha

drive D

the oil

longer,

easy

eece

nnels

361

_

111

39

Engine

F

uel system

Two demand-control
a

double cam on each of the inlet camshafts.

In comparison with

The

oper

ating pr

High pressure pump with fuel metering
valve

N290 and N402

40

led single

a cons

essure is between

F

uel pressure sender G247

-plunger high-pressure pumps are

tant delivery pu

mp, the dr

30 and 100

used in the fuel system, which are driven by

ive power is reduced depending on the rail pressure.

bar.

F

uel pre

pressure G410

ssure send

er for low

361

_

112

F

uel tank

In

terms of
volume is approx.
fuel tank.
Further differ
various countries.
An appr
leaking fo
F

uel filling level measur

position sensors (MAPPS) are used. One

the tank bladder, the fuel tank is

llo

enc

wing

103 l. The main

es,

such as

vehicle roll-o

ement is the same for petrol and diesel en

opriately designed fuel tank br

differen

the tank

ver.

Le

ak diagnosis pump

(USA only)

Bubble container

Breath

er pipes

the same component for petrol and

ces are to be found in the fuel tank br

leak diag

nosis system are dependent on the use of the vehi

eather system

sensor is fi

ensures

tted in

each chamber.

easy re

gines. In

diesel engines. Its useful

eather sy

fuelling and pr

this c

Activated charcoal

Note

The

operating principle of the MAPPS is
described in detail in the se
programme SSP

stem and the inside of

events the fuel tank from

ase, ma

gnetic

filter

Breather valve

36

1_078

282.

cle in the

ally passive

Non-return valve

Flange with electrical
connection for MAPPS
senders, fuel filt
fuel

tank breath

system

lf-study

er and
er

the

41

Engine

Petrol engine

Here,

a fuel de
deliver fuel from
delivery unit. The
generates
The active charcoal fi

livery unit is fitted in the fuel tank. It is

the left chamber,

a pres

sure of between

Diesel engine

Here,

a
other chamber.

Inside view of tank –

G Fuel gauge sender
G6 Fuel system pressurisation pump
and suction jet pump

42

Suct

fuel de

livery unit is fitted in each ch

ion jet pump

fuel system pr

lter is located behind the fuel filler neck.

petrol engine

the delivery unit drives two

essurisation pump G6 is controlled by the fuel pump control unit

3.5 and

5.5 bar. The fuel filter is in

amber. Each

located in the right main chamber. In

suction jet pumps, which pump the fuel into the

sta

fuel deli

lled in the left flange connection.

very

unit drives

a suction jet pump in the

G

169 F

uel gauge se

suction jet

order to

J538

pump

also

and

nder 2 and

361

_

081

Exhaust system

4.2l V8

FSI engine

The

complete ex

haust system from the

Air gap insula
flow char
The

metal oxidation catalytic co
proxim
of the primary ca
The two ceramic catalytic conver
The front silencer is a
a "pre
ou

tput and torq

The

absorp
the exhaust branches.

3.0l V6

ted manifolds in the clamp fl

acteristics, ensuring quick

ity to

the engine. The broadband and tr

talytic conver

shared component. It is de

ssure eq

ualizer" between the two exhaust br

ue.

tion-type front

TDI engine

silencer is also

Absorp
"pressure

With this engine, the ex
Cast

manifolds are bolted to
A metal catalytic conver
filter is located in the underbody ar

Metal catalytic
converter

haust system do

the cylinder heads, which route the exhaust gas into

ter is fitted do

cylinder heads to

ange technique are

heating of the catalytic co

nver

ters reach operating temperature very quic

ansition La

the tailpipes is designed as

bolted onto

nver

mbda probes are located upstream and downstream

ters respectively.

ters are loca

ted near the underbody.

signed as an abso

a

shared co

Air-gap in

sulated manifold in

flange technique

Ceramic

tion front silencer with

eq

primary catalytic conv

Deco

upling element

Ceramic ma

ualiz

er"

wnstream of the

wnstream of

ea. The rear

Diesel particulate filter

anches,

in catalytic converter

silencer is designed as

which has a

mpon

ent. However, it contains an in

clamp

erter

turbocharger is designed as a

the turbocharger. The maintenance-fr

Refl

a

dual-branch

ters.

the cylinder he

ads. These

kly thanks to

rption-type silencer and fe

positive impact on engine power

Absorption rear silencer with

partit

ion

1_124

36

inner

sing

the co

mmon tu

ee

a refl

ection si

ection sile

lencer

361

_

095

ncer.

system.

optimize

their design and

atures

ternal

partition for

e-branch system.

rboc

harger.

diesel particulate

43

Running ge

ar

Overview

The running
absorbers are set up for sporty
available adaptive air suspen
synthe

gear also excels

sis of decidedly sporty

Fr

ont axle

A double wishbon
principle has
The

springs, shock

lower wishbones have been modified.

44

e axle is used. The

been adopted from

absorbers, anti-r

through its all-rounder q

driving proper

sion with an

handling char

design

the VW Touareg.

oll bars and

ties and

electr

onic

acteristics and the highest ride comfort.

ualities. Stee

high comfort, even during of

ally controlled damper system repr

l-spring suspension and twin tube shock

f-road

use. The

esents the perfect

optionally

362

361

_

_

001

128

Rear

axle

A double wishbon
is used. The design prin
the VW Touareg. The mounting bracket, wh
bearings and wi
The

increa

by

14

mm, is ac

wheel carr

Br

ake system

e axle with

shbones are identical compon

sed tr

ack width, which has

hieved by

ier.

split up

ciple has been adopted from

means of

En

gine

I

nternally ventilated br

front

and rear axles. The brake pads feature brake
pad wear monitoring.
The

parking brake is

br

ake.

Minimum wheel si

Brake type

Numb

er of brake pistons

Brake piston diamet

Brake

disc diameter

a foot-operated servo drum

ze

er

(mm)

(mm)

ake discs are used on the

per wishbones

eel

been ex

a

modified

V8 petrol
TDI

18"

Brembo aluminium fixed
caliper

6 4 4

30

/34/3

350 358 330

ents.

tended

Front axle

engi

ne, V6 FSI and V8 petrol engin

8

e

18"

18

Brembo aluminium fixed
caliper

28/3

2 28

3

62_036

_

362

Rear

axl

e

V6 FSI and TDI

"

Brembo alum

caliper

/30

362_037

inium fi

xed

075

45

Running ge

ar

Br

ake system

An active brake servo is used for
br

ake servo, br

pr

essure is generated on the suction side of the ESP pump. This enables the ESP pump to

pressure very rapidly. The rapid brake pressure generation is required for certain ESP control interventions.

ake pr

essure can be generated without actuation of the pedal by the dr

ESP

the first time. Through electrical

activation of a proportional

Solenoid

iver. An

generate br

mag

admission

Owing to
system of the Audi Q7,
with the designation

Active Hall sensors are used to
speeds. The
of the sensors alre

the large br

operat

ing principle is the same as that

ady used in the Audi A8 ´03.

ake fluid volume in the br

a

new TEVES ESP assembly

Mk25E1 is used.

detect the wheel

ake

In

the Audi Q7, the familiar
detecting lateral acceleration, yaw velocity and
longitu

dinal ac

the front passe

celeration. The
nger footwell.

dual sensor is used for

sensor is installed in

46

net in the

aking

362

362

362

_

_

045

_

080

052

ESP

Opti

mum stability

ESP on

-road control

Opti

mum traction

ESP off-road control

Some new fu
ESP. The
mention. The basic fu
optimise the ESP/ASR/EDS and ABS interventions
with respect to traction and br
surfaces (off-r

The

mode is activated by briefly pr

the ESP button.

nctions are implem

"off-road" mode is particularly worthy of

oad).

nction of

ented with the new

this mode is to

aking on loose

essing (<

3 s) on

Control is sp

eed

dependent

Road

speed (km/h)

_

057

362

362

_

058

_

059

362

47

Running ge

ar

Steering sy

stem

A conven
gear with
from
by the onboard supply control unit

The design and function of the steering wheels have
been adopted from
comprises
wheels. These are
trim, multifunction
steering wheel rim.

tional hydr

a va

the current

riable ratio is used. The

three-

aulic steering system with

Audi A8 ´03 is used (see SSP 285). Acti

the Audi A6 ´

spoke and four

option

ally

buttons, Tiptronic and heated

available with leather

Servotronic fu

J520.

05. The rang

-spoke steering

A mechanical
same as on the stee
Audi Q7 are also equipped with an electric steering co

An el

ectric steering column is

the steering column of the Audi A8 ´03.

48

ly-adjus

table steering column is

ring columns of the Audi

availabl

e as

optional eq

a

vane pump, rotary

nction is equipped as standard. The

vation of

e

available as basic eq

8 and Audi A6 ´05 (see SSP

lumn lock.

uipment. The electric drives have

slide

the Servotronic so

uipment. The

va

lve and

285). The

a rack-and-pinion

Servotronic II familiar

lenoid valve is perfor

steering

plate-clamp system is the

steering columns for th

been adopted from

med

362

362

362

_

064

_

069

e

_

034

W

heels and tyres

Engine

6-cy

8-cy

linder

linder

Basic wheels

7.5J x 18 ET
Forged light­wh
2

eel,

35/60 R

varn

18

53

alloy

ished

8J x 18 ET

56 (2)
Forged light­wh
2

55/55 R

(a

vailable as optional
equi
cylinder)

eel,

varn

18

pment for 6-

alloy

ished

Optional wheels, 18" Optional wheels, 19" Optional wheels, 20"

(1)

8J x 18 ET

56 (3)

Forged li

ght-

wheel,

polished

255/55 R

18

8.5J x 18 ET
Forged li
wheel,

varn

255/55 R

18

ght-

58

ished

Tyre pressure

monit

oring system

A tyre pr
available for the Audi Q7. Its design and
principle are the same as those of the Audi A6 ´05
(see SSP 324).

essure monitoring system is optionally

oper

alloy

alloy

ating

(4)

8.5J x 19 ET
Forged li
wheel, varnished
265/50 R

ght-

19

62

alloy

(5)

9J x 20 ET

60

ght-

27

(6)

alloy

5/45

Forged li
wheel, polished,
tw

o-colour

R

20

Winter wheels

7.5J x 18 ET
Forged li
wheel, varnished
235/60 R

ght-

18

53

alloy

(1)

362

_

035

_

127

361

49

Electric

al system

Installation overview of control

Key

1 Garage door
2 Adaptive cruise control unit
3 Data
4 Onboard
5 Control unit for headlight range
6 Tyre pressure monitor control unit J502
7

E

ntry
8 Steering column electronics control unit J527
9 Dri

ver door control unit

10

Rear
11 Front
12

Rear right door control unit
13

Energy management control unit
14

Airbag
15

Onbo
16 Fr

ont passenger seat adjustment

17

Battery A

50

operation co

bus di

agnostic in

supply control unit

and start authoris

left

door co

passenger door control unit J387

control unit J234

ard supply control unit

ntrol unit

ntrol unit J530

J492

terfac

e J533

J519

J431

ation control unit J518

J386

J388

J389

J644

2 J520

with memory control unit

units

J521

Note

For more inf
system, please refer to the self-study
programme SSP
El

ectric

ormation on the electrical

364 Audi Q7 –

s.

364

_

004

Key

20

Rear
21
22
23 Co
24 Co
25
26
27 Pa
28 Trailer detector control unit
29
30
31 Side assist control unit 2 - J770
32
33

lid control unit
Rear lid co
Reversing ca

nvenience system central control unit

nvenience system central control unit
Auxiliary heater co
Aerial reader unit for keyless entry sy

rking aid control unit J446

Adaptive suspen
Side assist control unit J769

Reversing ca
Radio controlled clock re

ntrol unit

J605

2 - J756

mera system control unit J772

ntrol unit

sion control unit

mera R189

ceiver

J364

J345

J489

J197

stem

J773
J393

J723

364

_

005

Note

For inf

ormation on the driver assistance
systems, please refer to the self-study
programme SSP 375Audi Q7 - New
Driver Assistance Syst

ems.

51

Electric

Netw

52

al system

orking

Yaw rate sender

G202

Seat occupied

sensor
J706

Power output

mod

ule for left

head

light

J

667

Power output

module for

he

adlight

J668

right

Control unit in dash

panel

Engine

control unit

J623

Engine

control unit 2

J624

ABS

J104

Ai

rbag

J

234

Au

tomatic gearbox

J217

He

adlight ra

control
J

431

Se

lf-l

eve

suspension

J197

Steering angle

sender

G85

Steering column

electronics

J527

Multifunction

steering wheel

J453

lling

J285

nge

Side a

ssist

control unit 2

J770

Side a

in

sert

ssist

control unit

J769

Parking aid

J446

Driver

door

control unit

J386

Fr

ont passenger

door control unit

J387

Rear left door

control unit

J388

Rear right

Seat adjustment

adju

Fr
seat adjustment

sy
control unit 2

Reversing camer

door

control unit

J389

and st

eering
column
stment with

memory

J136

ont passenger

with memory

J521

Convenience

stem

central

J773

Trailer

detection

J345

system

J772

a

Adaptive cruise

control

J428

Dat

a bus dia

in

terface

J533

Energy

management

J644

A

dditional heater

J364

T

ailgate

J605

Onboard supply

control unit 2

J520

Entry

and

start

auth

orisation
J518

O

nbo

ard supply

control unit

J519

C

onv

enience

system central

control unit

J393

Tyre pressure

monitor

J502

Climatronic

J255

Rear Climatronic

operating

display unit

E265

and

gnostic

Front

informat

display

operating unit

Radio

R

control unit 2

Sliding

ion

and

J523

Digital sound

Rear lid

J756

Wiper motor

J400

sun roof

J245

Lang

packet
J525

uage

input

J507

Rain and light

Roof blind

sensor
G397

J394

Mo

bile ph

operating

electronics

J412

one

Digital radio

R147

Rear sliding

sunroof
J392

Telephone

tr

ansmitter and
r

eceiver unit

R36

Media player in

po

Navigation system

with CD drive

TV tuner

sition 1

R118

Telephone handset

J401

R78

R37

MOST bus

Dash panel in

Diagnostics CAN

Drive CAN

Convenience CAN

Adaptive cruise control CAN

LIN bus

sert

CAN

Interior monitor

Transmitter unit,

Entry

authorisat

G273

front left

G431

and st

ion switch

E415

art

Alarm horn

H12

Transmitter unit,

front

G432

for keyless entry sy

right

Aerial reader unit

J723

Transmitter unit,

rear left

G433

stem

Transmitter unit,

rear right

Various second

Rear tyre pr

G

434

essure

monitor aerial

R96

64_006

3

ary bus systems

53

Air conditioning

Overview

The

new Audi Q7 is eq

ilable:

ava

Air condit

ioner (basic)

The

systems can be iden
different air
air conditioner does not feature an automa
function. The deluxe automa
the four-z
eq

uipped with sun-position dependent control,
separate temperature
driver and fr
ventil
co

mpar
pillars,
four-zone
deve
already succ
Touareg.

conditioner operating units. The basic

one deluxe automatic air

ont passenger

ation. Air conditioning of

tment is achi

and also in the C-

system. The re

lopment based on the air conditioning system

essfully implemented in the VW

The

optiona
air co
unit in the rear pa
co

mponents of the rear air conditio

ea

sily acce
luggage c
has
VW Touareg.

lly

nditioner fe

ssible behind the left side trim in the

ompar

been adopted without

54

uipped with an air conditioning system as

36

1_069

tified by

tic air

and air distribution for

sides, and indirect

eved via air

availa

ble four

atures an additional air

ssenger

tment. The rear air conditioner unit

the rear passenger

pillars in the case of the

frigerant ci

-zone

compar

modifications from the

system

Deluxe auto

means of the

conditioner and

conditioner ar

vents in

delux

tment. The

tic

the B-

rcuit is

a

e automatic

conditi

ner unit are

matic air condit

e

the

further

oner

standard. Thr

ioner

1_071

36

ee

different

Four-zone deluxe automatic air conditioner

361_118

air conditioners ar

e

Note

The

electrics and oper

cond

itioning system are ba
Audi A6 '05. The
units

J255 are
A6 '05 and have been further developed
for use in the Audi Q7.

Note

The refrigerant circuit is described in
detail in the self-study progra
SSP 301.

ation of the air

Climatro

also based on the Audi

sed on the

nic control

mme

Refriger

ant circuit

General

The re

friger

ant circuits of the

The air conditio
unit

additionally fe
pollen filter in the fr
air.

The familiar
four

-zone systems.

ner units are supplied by

atures

a heat exchanger and an evapor

ont air

R134a refrigerant is

Re

frigerant

In

terms of design and
the engine version, the refriger
The

sender

circuit of both the tw

function,

detects the temperature of

Refrigerant temper
G454

Compressor

S

ervice connection

Low pressure

High

Fr

esh air

* depend

pressur

ing on engine

e

thr

ee

systems are identical to

a

common compressor. In four-z

conditio

ature send

ner unit. The rear air co

used. The refrigerant and refriger

o-zone systems

the systems are the

ant temperature sender G454 is

the refriger

er

Expansion valve

ant and tr

those in the VW Touareg.

ator. The systems ar

nditioner unit o

one systems, the rear air conditioner

nly draws in already filtered

ant oil capacities are different for two and

e equipped with

a

dust and

interior

same as those familiar from the VW Touareg. Depending on

Condenser

installed. It is not used on all engine versions.

ansmits it to

with dryer cartridge

the Climatronic control unit J255.

S

ervice connection

Evaporator temperature sensor
G308

Blower in front air
conditioner unit

Evaporator

361

_

116

55

Air conditioning

Refrigerant circuit of the four

The two evaporators of the four
both

supplied by

is dr

iven via
The rece
without removing the condenser when the refriger
side of the condenser.

a

a

muli-V

iver is

integrated in the c

single externally-contro

belt and in

-zone deluxe au

-zone air

the case of

onden

Re

friger

ant temperature se

G454

ristic

curve of

those of the

Low pressure

High

pressur

Fr

esh air

Reci

rculated

compar

tment

* depend

ing on engine

Compressor

Service conne

e

e

air from

ction

the pa

ssenger

High-pressure send

Expansion valve 1

Expansion valve 2

Expansion valve

The
characte
the f
differ from
rear one.

56

design and

ront expansion valv

tomatic air co

conditioner are integr

lled compre

a V8 FSI

ssor. In the case of

engine, vi

nditio

ated in para

a a

drive shaft.

ner

llel

into

a V6

the refrigerant ci

TDI engine, the compre

ser and contains the dryer cartridge. Currently,

ant circ

uit is empty. The receiver is instal

nder

er G65

Blower

in front air

conditioner unit

Service connection

Evaporator
G308

Evaporator in rear air conditioner

rcuit. They ar

ssor

this can be replaced

led on

the ri

ght

Dryer cartri

temperature sensor

dge

Evaporator in front
air conditioner

unit

361

unit

_

117

e

Fr

ont air conditioner unit

The front air
additional control mot

Control motors on

supp

conditio

ort plates

ner unit is

ors have been fitted. All thr

the same in design

and function as

ee air cond

itioners are air-controlled systems.

that of the VW Touareg. Ho

Most of the control motors can be replaced with the dash pa
desc

ribed in the Workshop Manual.

Air di

stribution

Fr

esh air is dr
The air pa
the pollen filter.
In or

der to achi
sides, separately adjustable temperature flaps are used in the deluxe auto
deluxe automatic air co
The

position of the temperature flaps dete

from

the heat exchanger are mixed. This enables differ
occupants.
In

the case of
means of a
pa

sse

nger sides.

in

awn in via the blower on the right side of the vehicle in the ar

sses through the dust and pollen filter

eve in

the ba

shaft. The air ou

sic air conditioner,

Heat exc

hanger

the fr

ont pass

depende

ntly-controll

nditioner.

tlet temperature at the fr

enger

compartment

and the evaporator, which is loca

able air outlet temperatures for

rmine the volume ra

both temperature flaps are perma

Evaporator

nel in place; the specific repair oper

tio at which cold evaporator air

ent air outlet temperatures to be set for the front

ont vents is the same on both the driver and fr

Dust and pollen filter

361_084

ea of

the plenum chamber.

ted i

mmedi

the driver and front pa

matic air

nently attached to

conditioner and four-z

wever,

ations ar

ately adjacent to

sse

and heated air

one another by

nger

ont

e

one

57

Air conditioning

The

table shows the n

versions. In the ba

1

Left footwell flap

2

Temperature fl

3

Defrost flap

4

Side

5

Centre vent, left

6

Centre vent, righ

7

Side

Temperature fl

8

F

oot

9

Recircul

10

Temperature fl

11

Air flow flap, rear right

12

Air flow flap, rear right

13

Temperature fl

14

Shutoff flap at B-

15

lef

Direct

16

Direct

17

Shutoff flap at B-

18

right

A potentio
exception. The potenti
motor V1
a basic air cond
Fault detection is not poss

58

13 in

sic air

Control motors

ap, left

vent,

left

vent,

right

ap, right

well flap, right

ated air flap

ap, rear ri

ap, rear left

t

ional vent, rear

ional vent, rear right

meter is

installed in each control motor. The air recirculation flap co

the case of

itioner,

umber and designations of the

t

pillar

pillar

conditio

left

ner version, the co

ght

and f

ootwell, V

and f

ootwell, V

No.

V

108XX

V

158XX

V

107

V

299 X

V

110

V

300

V

159

V

109

V

113

V

314

V

240

V

239

V

313

212

V

315

V

316

211

ometer for air recirculation flap co

the two

deluxe auto

the control motor V113 can only be moved from one end stop to the other.

ible without

the potentiometer.

various co

ntrol motors perform va

Air conditioner

Controls the L and R f
flaps

Controls the L and R
temperature flaps, is
insta

lled on right of air

cond

iti

oner uni

X

Controls the L
vents and the flaps of the L
and R

centre vents

X Base

without

potenti

omete

(basic

t

and R side

r

ntrol mot

ors for the thr

rious functi

)

2-zone and 4-zone

condit

X

ootwell

X

X

X

X

X

X

X

X

matic air conditioners. Conseque

ntrol motor G143 is only installed in

ee air co

ons:

Automatic air

automatic air

ioners Fr

ont

ntrol motor V113 is an

ntly, in vehicles equipped with

nditio

conditioner

4-zon

e a

conditioner Rear

X

X

X

X

X

X

X

X

the co

ner

s

utomatic air

ntrol

Rear

air conditioner unit

The rear air conditi
motor draws in
During auxiliary heater

Flaps of the rear air

oner unit is located under the side trim at

the air to be cooled directly from

and residual heat

Rear fresh air blower control unit
J

391

conditioner unit

The rear air conditioner unit has two
separate climate zones for the rear occupa
pa

sse

nger compartment sides ar

warm air from the rear heat exchanger.

temper

e achieved through the mixture of cold air from the rear evaporator

Rear air co

nditio

ner unit service po

The rear air co
hoses remain connected for this purp
In

the service

nditioner unit can be br

ose, neither of the circuits are opened.

position, the rear heat exch

the passenger compar

operation, the rear air conditi

Evaporator

ature and two air flow flaps. These permit

nts. The required

sition

ought into a service position. Both

anger and rear fresh air blower, for ex

the left of the

outlet temperatures on

tment.

oner unit remains

Rear right temperature flap control

motor V314

luggage compar

Blower motor

Rear heat

361_070

the right or left rear

the refr

igerant pipes and co

ample, can be replac

tment. The

switched off.

exchan

adju

stment of

ger

ed.

blower

the two

and

olant

59

Air conditioning

Oper

ating units

Air conditio

With the ba
to control the te
distribution via r
automatic recirculated air mode, no sun-position
control and no indirect ventilation option.
The

heated front seats (optional equipment) can be

a

djusted in

ner op

erating unit

sic air

conditio

mperature, blower volume and air

otary controls. The

3

stag

es, as in

ner version it is possible

the Audi A6 '05.

(bas

system has no

Deluxe automatic air

The

contr
are the same as
conditio
to
Audi Q7.
Various automatic air conditioner se
saved. The
vehicle keys.

ols of the deluxe automatic air conditioner

those in the Audi A6 ’05. The

ner control unit software has been ad

the passenger compartment dime

saved data is assigned to

The fo

llowing data is saved:

–

Specified temperature,

pa

ssenger

–

Air distribution,

–

Heated seat settings for dr

pa

ssenger

–

Air flow (blower vo

60

sides

sides

conditioner

driver and front

driver and fr

lume)

nsions of

ttings can b

the respective

ont passenger sides

iver and front

ic)

air

apted

the

e

361

_

068

361

_

071

Four

-zone automatic air

conditioner

The rear Clim
E

265

beneath the rear vent in the centre console is
the same as the one in the Audi A8 ´03. All the
fam

iliar

In

the Audi Q7, the rear air conditioner unit is used
for the rear passenger compar
the four-z

atronic operating and display unit

functions are identical.

one automatic air conditioner.

tment in the case of

Self-diagnosis

The

Climatro

Cl

imatronic

eq

uipped with
monitored sensors and components, these ar
stored in the fault memory of the relevant co
unit t
The fa
thus indepen

nic control unit

operat

ing and display unit E2

a fa

ult memory. If faults occur in the

ogether with an indication of

ult memories are non-

dent of the power supply.

J255

volatile memories and

and the rear

the type of fault.

The two control units can be accessed
addr

ess w

ords:

08 Co
28

ntrol unit for Climatronic
Rear Clim
E265

atronic

oper

ating

J255

and di

via the

splay unit

65 are

e

ntrol

Rear air conditioner operating unit

361

361

_

_

118

071

61

Air conditioning

Air distribution

In

the fr

ont passenger compartment, air distribution is the

automa

tic air

the two vers

conditioner; the differ

ions.

ences lie in the design of the air conditio

In

the case of
vents in the dash panel, the front vents in the ce
The passengers in the third seat row only receive the air from

the deluxe automatic air conditioner,

ntre cons

the air is routed from

In

the case of the four
suppl

ied with air by the rear air
in the B and
su

pplied

C-pillars.

with air by the rear air conditioner unit.

-zone automatic air conditioner,

With the four

conditio

ner unit. The rear air co

-zone automatic

Over

view: Example of air routing (f

our-zone deluxe automatic air cond

The illustration sh
conditioner.

Rear air conditioner unit

C-p

ows the air distribu

illar vent

B-

pillar vent

tion in the vehicle interior

62

same for the ba

ole and to

the fr

ont of the passenger compar

the occupants in the second

air conditioner,

nditioner unit supplies climatised air to the vents

the rear vents in the centre console ar

with an opti

Rear air conditioner operating unit

sic air conditio

the front air conditi

the vents in the left

itio

ner)

onal four-zone deluxe automatic air

ner units and

Rear vent in centre console

ner and the deluxe

the flap co

oner unit to

and right B-pillars.

and third seat rows ar

Front air conditioner unit

tment.

ntrol of

the

e

e also

_

361

119

Residual heat

function

The residual
activation,
ON/OFF
Activation can be performed either from the rear Climatronic operating
Climatronic control unit

With the residual heat function, the vehicle interior can be
off.
For this purpose, the co
pump V36, depending on
In this ma
ou

tput.

With the optional factory-installed auxiliary
of the coolant temperature.

heat function is

the residual

butt

on, which must be pr

nner, warm air

only

heat function

available

essed for

J255.

olant is circulated via the pumps

the engine version.

enters into

with the two automatic air condit

oper

ates for

a maximum of

longer than

the passenger co

heater,

mpar

the passenger compar

1

30

second with the ignition in the OFF position.

heated with warm

V50 (coolant circulat

tment via the heat exchanger at

Electric

Depending on the engine ve
running, the en

In vehicles equipped with an 8-cylinder engine or
is in
Vehicles eq
cool

coolant pumps

gine cool

stalled. In vehicles with

uipped with

ant pumps (V3

a 6-cylinder

6 and

rsion, c

ant pump is assisted by

a 6-cylinder petrol

V50).

oolant circulation is achi

petrol

engine and an auxili

these elec

a 6-cylinder diesel en

engine, the water pump V36 is used.

eved using various pumps. When the engine is

tric

ally-driven pumps.

ary heater are equipped with both electric

minutes. Activa

ioning systems. Following

tion is performed via the

and di

splay unit

air when

ion pump) and/or

tment can be he

gine, the cool

Note

In the

event of poor heater output,

the fu

nction and perfor

elec

tric coolant pumps in
circuit must be checked. The
co

olant pump and the electric

pu

mps V36 and V50 may work agai
one another, preventing sufficient
co

olant flowing to the

J265, or from the

the engine is switched

the water

a reduced blower

ated independently

ant circulation pump V50

mance of th

heat exch

the c

oolant

engine

coolant

anger.

e

nst

63

Air conditioning

Sensors and actuat

ors

High

-pressure sender

G65

In

the Audi Q7, the high pr

The

high pressure sender G65 is not connected to

essure sender generates

P

ossible fault memory entries include:

–

Upper/lo

–

Open circuit

–

Short

–

Def

circuit to

ective

wer limit ex

positive/earth

ceeded/not reached

The fa

ult "upper limit ex

remains above

27

ceeded" is only stored if

bar for

5 seconds.

Sunlight

As with the A6 '05, a passive photo sensor is
installed in the dash panel behind the windscreen,
which determines
right and left
reg
lowered on one side.
In

the ev
from
defective side. Should both photo
pr

edeter

penetration

ulates

-hand sides of the vehicle. The sensor

the blower voltage and the temperature is

ent of failure of one photo se

the functioning side is ado

mined substitute value is used.

photo sensors

the sunlight penetr

pted for the

sensors fail,

ation at

nsor,

64

G107

the value

a pressure-dependent pulse width modulation sign

the LIN bus in this model.

the refrigerant pr

and

G134

the

a

essure is greater than

31

bar and then

al.

361

_

123

Ambient temperature

sensor

For

evaluation of the ambient

the four-z

one deluxe automatic air

temperature, two

conditioner.

Ambient temper

The

measured

dash panel

Fresh air in

This is evaluated by the Climatronic

ature se

value from the

insert

take duct temperature

and tr

nsor G17

ambient temperature

ansmi

tted to

the Climatronic

sensor G89

control unit

The

ambient temperature

The fresh air intake

sensor G17 is installed in the fr

duct

temperature sender G89 is located in the intake housing of

The

Climatro
event of fa
temperature sensors be defect

nic control unit

ilure of one of the sensors, the other ambient temper

J255

always evaluates the lower of the two

ive,

a

substitute

Re

frigerant

temper

ature

sender G454

The

sender is
near the compressor. Its purpose is to determine the
refriger
Climatronic control unit

installed in the high-pressure line,

ant temperature and to transmit it to

J255.

the

T

ogether with the current refrigerant pr
ambient temperature and
values, the Climatronic control unit
diagnose gr
further conditions, such as engine idling speed
must be av
A REFRIG
memory remains static, not spor
memory en
the sender G
range. This can be ac
the refriger

adual coolant loss. For this purpose,

ailable.

ERANT LOSS fault en

try is stored

454 returns to

ant circuit and refilling the refr

coolant temperatur

tered in the fault

until the value detected by

within the required

hieved, for instance, by sealing

essure,

J255 is

able to

adic. The fault

iger

e

ant.

Installa

tion of the sender depends on the engine
version. In vehicles with V6
the sender is not used.

MPI and V6 FSI engines,

sensors are used in the delux

sensor G17 is evaluated by the control unit

J255.

value of

control unit

10 °C is

J255

ont end section.

ature value is adopted. Should both ambient

permanently assumed.

e automa

via the convenience CAN data bu

ambient temper

Note

The re

friger

G

454

connection is

a va

lve. The
be remo
is empty.

ved when

tic air

conditio

the air conditioner unit.

ature valu

J285 in

es. In

ner and

the

s.

the

361_114

ant temperature

not eq

sender must therefore only

the refr

sender

uipped with

igerant circuit

65

Air conditioning

Fresh air

The fresh air blower control unit J126
blower speed in the deluxe automatic air
a

nd the four-zone deluxe automatic air conditio
In the manual
its place.

The
unit

66

blower control unit J126

system,

sender is

J255

activated by the Climatro

via an analogue signal.

a

series resistor is in

contr

ols the

conditio

nic control

ner

ner.

stalled in

"Feedback i

PWM si

gnal

nformation"

Fresh air blower
control unit

J126

Front blower Bitron
regulation motor
V

305

Terminal 30

Terminal 31

Climatronic control unit J255

361

361

_

113

_

115

Netw

orking

The

Climatro

nic control unit
the distributed functions of
case of diesel en

gines, as well as the optional, factory-installed aux

The

Climatro
control unit
(PWM sign

nic control unit

J126

and the high pr

als) are used.

Control unit in dash

panel insert

Connector, 16-pin

(diagnostic conn

T16

ection)

Auxiliary air heater

el

ement

Z35

He

ated rear window

Z1

J255 is connected to

the heated rear window,

J255

does not control any modules

essure sender G65 are not

J285

En

gine control unit

J623

En

try

and start

authorisation

control unit

J

518

Auxiliary heater

control unit

J364

C

onv

enience system

central

control unit
J393

the convenience CAN bus, It is the ma

the optional heated

iliary heater.

connected to

connected to

Display unit for front

info

rmation display and

op

erating

unit control unit

J685

Data bus diagnostic

Energy management

control unit

J644

Onboard supply

control unit

J519

Cl

imatronic control

unit

J255

Rear C

limatronic

control unit

E265

ster co

ntrol unit for

seats, the additional heater in the

the LIN bus. The fresh air

the LIN bus. Serial data telegr

Fr

ont information

display

unit control unit

interface

J533

blower

ams

and operating

J

523

361

_

096

67

Infota

inment

Overview of A

68

udi Q7 inf

Standard

equi

pment

Display

Oper

ating unit

Display and operating unit
control unit

Amplifier

Radio

CD drive

Navigation syste

Optional extr

CD changer

Digi

Preparation for mobile phone

BOSE amplifier

Navigation system

Telephone - perma
installa

Voice

TV re

tal radio

tion

control sy

ception

m

as

nent

stem

otainment systems

Monochrome 6.5" scr

4-bu

tton operating unit

In conj

unction with CD changer under the

centre

armr

– in

cl. radio

– in

cl. audio

– in

cl.

4x20W amplif

Integrated in the di
control unit

Radio

with

display and oper

Integrated in the di
control unit

_

CD changer in dash panel

Digital radio in rear right of luggag
compar

Preparat
in

tegrated in

– in

cl. telephone voice control

– in

cl. 8-button

_

_

_

_

_

MMI basic

een

est, otherwise in the dash panel

module

single-CD drive

ier for 8 lo

splay and operating unit

ae

rial divers

ating unit control unit

splay and operating unit

tment

ion for Bl

uet

ooth mobile

centr

e armrest

oper

ating

ity,

integrated in

unit

udsp

eakers

e

phone

MMI basic plus

Monochr

ome 6.5" scr

4-

button

operat

ing unit

In conjunction with CD changer under the
centr

e armrest, otherwise in
– incl. radio module
– incl. au

the

dio sing

7-chan

nel DSP sound

total

out

put, in rear right of luggage

compartment for 11 loudspeakers

Radio with aerial diversity and TP Memo,
integrated in the display and oper
control unit.
The

TP-Memo function is select

radio setup on the 4-button operating unit.

Integrated in
control unit

_

CD chan

ger in dash panel

Digi

tal radio in rear right of luggage

compartment

Preparation for
integrated in centre
– incl. telephone voice
– incl. 8-b

BOSE 6000 amplif
– BOSE Au
–

10-c

hannel amplif

output

–

14 loudspea

_

_

_

_

le-CD

the display and oper

Bluet

ooth

armr

utton

operating unit

ier with

dio Pilot

ier with

kers

een

the dash pa

drive

system with

mobile phon

est

control

275 W to

180 W

ating unit

able via the

ating unit

nel

e

tal

MMI basic plus with CD navigation

Monochrome 6.5" scr

een

7" colour scr

een

MMI

8-button operating unit

8-bu

tton operating unit

Under the centre

– incl. radio modul
– incl. naviga
– incl. single-CD drive for navigation system

or au

7-channel DSP sound system with 180 W
total ou
compartment for

Radio with ae
i

ntegr

ated in

control unit

armr

est

e

tion module

dio CD

tput, in rear

right of luggag

11

loudspeakers

rial diversity and TP Memo,

the display and operating unit

e

In the dash panel behind
compartment

the glov

e

7-cha

nnel DSP sound system with
total output, in rear right of luggage
compartment

Radio with double tuner,
TP Memo, in rear ri
compartment

for

11 loudspeakers

ae

ght of luggage

rial divers

180 W

ity and

CD chan

ger in dash panel

CD navigation integrated in the display and _
oper

ating

unit

control unit

CD ch

anger in

dash panel

_

Di

gital radio in rear

compar

tment

Preparat

ion for Bluet
integrated in centre armrest
– incl. telephone

voice contro

right of luggag

ooth mo

e

bile phone

l

_

Digital radio in rear right of luggage
compartmen

Preparation for Bluet
integrated in centre armr

t

ooth

mobile phone

est

BOSE 6000
– BOSE Audio
–

–

_

_

_

_

amplif

10-channel am

output

14

loud

speakers

Pilot

ier with

plif

ier with

275 W

total

BOSE 6000 amplif
– BOSE Au
–

–

DVD navi
compartmen

Permanently instal
cordless handse

Voice control sy

Countr
hybrid TV receiver

dio Pilot

10-chan

nel amplif

output

14 lo

udspeakers

gation in rear

t

stem in the K box

y-specific analogue TV re

ier with

ier with

right of luggag

led telephone,

t

(digital

275 W total

incl.

ceiver or

and analogue)

e

69

Infota

inment

The

infotainment system familiar from
used in the Audi Q7. The
to

the interior of

the Audi Q7 in several respects.

system has been adapted

Standard sound system

The front information di
control unit
which directly drives the
treble
loudspea

J523 comprises

loudspeaker and a

ker in

each of the

DSP

sound

system

The op

tional Standard sound system features an
external 8-channel DSP amplifier,
the digital sound system
in the MOST bus. It
systems, the
as

the middle loudspeaker integrated in the dash
panel. This eq
4x

20 Watt amplif
display and oper
DSP sound system is standard eq
ba

sic plus and high MMI versions.

2-way systems in the rear doors as well

uipment

BOSE

sound system

A BOSE

sound system is installed in the Audi Q7, the

tec

hnology of
system in the current Audi A6 Avant '05.
In

order to
row, 2
An additional subw
wheel well. The
loudspea
stage. In
ou

tput, two output
the amplif
against damage due to
ou

tput by
the middle loudspeaker. This
a

high-pass filter in tr

which is ba

impr

additions have been made.

ker are driven in mono by

order to

ier. The middle loudspeaker is pr

means of

Furthermore,
D-

pillars are driven separately. Co

surro

und loudspeakers can be driven using either
stereo or
out

via the "surround

The

stereo
manner. The digital so
features 9
system option in the Audi Q7. It is optionally
available for the MMI basic plus and MMI

70

the two

surround sign

sound can be individually adapted in this

loudspeaker outputs in the BOSE sound

splay and operating unit

a 4x20W

8

loudspeakers, including a

mid-range/bass

4

doors.

J525,

drives the fr

version dispenses

ier module in

ating unit

which is

ont thr

the fr

control unit

sed on the Bose sound

ove the acoustics for the 3rd

oofer is in

subw

drive the subw

stage channels are integr

a

stalled in the spar

oofer and the middle

oofer with suffi

the high amplif

series-connected capacitor in

operates

eble loudspeakers.

surround loudspea

als. The

level" fu

und pac

settings are carr

nction in the MMI.

kage co

the A6 '05 is

amplifier,

the control unit for

integr

ee-way

ont information

J523. Th

uipment for the

the

same

ier bass

similarly to

nseq

uently, the

ntrol unit J525

ated

with the

e

seat

e

output

cient

ated in

otected

kers in the

ied

versions.

Drives

The

optional CD changer is
panel. In the case of
inf

ormation
J523
un

der the centre armrest.

display and operat

with i

ntegrated

If no

optional CD changer is instal

inf

ormation
J523
the fitting loca
panel.

display and operat

with i

ntegrated

tion of

instal

the MMI basic, the front

single-CD

single-CD

the CD changer in the dash

led in the dash

ing unit control unit

drive is

then installed

led,

the fr

ing unit control unit

drive is

ont

installed at

Key

1 R103 Front left
2 R158 Ce
3 R104 Front
4 J685 Display unit for front information display

and oper

5 J523 Front information display and

unit control unit
6 R118 Me
7 R20 Front left treble loudspeaker
8 R21 Front left treble loudspeaker
9 R36 Te
10 R22 Front right tr
11 R23 Front
12
13 R119 Me
14 R14
15
16 R16

lephone tr

E380 Mu

Rear left treble loudspeaker

R1

59

Rear left

Rear right tr

mid-ra

ntre treble/mid-range loudspeaker

right mid-range loudspeaker

ating unit co

dia player in position

right bass loudspeaker
ltimedia system oper
dia player in

nge loudspeaker

ntrol unit

1

ansmitter and rece

eble lo

udspeaker

position 2

mid-range and bass loudspeaker

eble loudspeaker

ating unit

operating

iver unit

17

R160 Rear right mid-range and bass

18

R11

13
19
20

21
22

23

24 J401
25 R
26
27
28
29 J525 Co

Aerial amplif

R24

Aerial amplifier

R105 Rear left
(BOSE o

nly)
R52 Teleph
R106 Rear right mid-range loudspeaker
(BOSE o
R148 Middle loudspeaker
(BOSE o

Radio
R78 TV tuner
R86
R146/R1

one and navigation system

nly)

nly)

Navigation system control unit

Aerial

amplif

47

Satellite radio/digital radio

ntrol unit for digital sound packag

ier

4

mid-range loudspeaker

(subwoof

ier for mobile te

loudspeaker

aerial

er)

lephone

e

361

_

122

71

Infota

inment

Aerial system

In

the Audi Q7, the
the rear and side wind
spoiler. The amp
installed at the right of

ae

rials are vapour-d

ows and installed in the rear

lif

iers for the various systems ar

the rear window, in
C-pillars and in the rear spoiler. They are re
for signal reception of the ra
locking, radio, TV and auxiliary
Impr

oved reception has

AM

ae

rial into

required for

the rear spoiler.

the relevant eq

dio-

heater ra

been achieved by moving the

Only the modu

uipment options fitted ar

installed.

The amplif
right C-pi
are all co

ier for analogue radio is insta

llar. The

nnected to

other

ae

rial

this

amplifier via coaxial cables.

The

voltage supply of all

perf

ormed directly at the
terminals 30 and
on

and off by

voltage on

the analogue radio via a

the HF radio line.

The ae

rials for navigation, telephone and digital

sa

tellite radio for North America (SDARS) ar

integrated in the roof ae

ae

rial amplif

ae

rial amplif

31. All the amplifiers are switched

rial.

Aerial

Aerial

amplifier R24

Radio, telephone and
sy

stem R52

Aerial

amplifier 2 R111

Aerial

amplifier 3 R112

Aerial

amplifier 4 R113

72

navigation

epos

ited on

e

the

sponsible

controlled central

dio receiver.

les

lled in the

amplifiers for FM/AM

iers is

ier R24 via

switched DC

e

Functi

on

Aerial amplifier for analogue radio
Aerial amplifier for auxili
Aerial amplifier for TV

Telephone
Aerial for navigation system
Aerial for di

Aerial amplifier for analogue radio
Aerial amplifier for TV

Aerial amplifier for analogue radio
Aerial amplifier for TV

Aerial amplifier for analogue radio
Aerial amplifier for TV
Aerial amplifier for
Aerial amplifier for

ae

e

rial

gital

TV 3

Central
locking

Driver side

Central locking

ary heater

ae

rial

sa

tellite ra

ae

rial

ae

rial

ae

rial
digital
central

DAB

R113

FM3 + TV3

C18 Window aerial suppre

(FM, MW, LW)

4

dio (SDARS, North America

(FM

1, MW, LW)

1

(FM 2)

(FM 3)

strial ra

dio (DAB)

stem

2

3

terre

locking sy

R

113

DAB

ssion

filt

er +

only)

SDARS SAT

AM

SDARS, terr.

Aerials

Rear window

R111

R52

Telephone

Navigation
system

in spoiler

R24

Passenger
si

de

FM1 + TV1

FM1 + AM

A

uxi

liary heater

R112

TV4

HF radio

FM2

IF radio

TV1

FM2 + TV2

R112

C18 Window ae

TV2

rial su

ppr

ession filt

er -

FM4 + TV4

Auxiliary heater

364

_

067

73

Notes

74

The fo

llowing Self-study Progra

–

SSP

361 Audi Q7

–

SSP

362 Audi Q7 - Running Gear

–

SSP

363 Audi Q7 - Power Transmission

–

SSP

364 Audi Q7 -

–

SSP

375 Audi Q7 - New

Self-study

mmes ar

Electrics

Driver Assi

SSP 363 - Power Transm

–

Automatic

–

Manual gearbox

–

Torsen

–

Rear

Order nu

differential

wheel drive

mber: A0

Pr

ogrammes

e applicable to the Audi Q7:

stance Systems

ission

gearbox

5.5S00

.16.20

on the Audi Q7

SSP 361 Audi Q7

–

Body

–

Pa

ssenger pr

–

Engin

–

Running gear

–

Electrical sy

–

Air co

–

Infotainment

Order number: A04.5S0

SSP

362 - Audi Q7 - Running Gear

–

Front axl

–

Rear axl

–

Brake system ESP

–

Steering systems

Order number: A05.5S0

SSP 364 - Electr

–

Networking

–

Bus topologies

–

Convenience elec

–

Infotainment

Order number: A04.5S0

SSP

375 Audi Q7 - New Driver Assistance Systems

–

Audi side assist

–

Optical

–

Reversing camera (rear-view)

otection

trics

0.14.20

0.15.20

0.09.20

e

stem

nditioning

e

e

ics

parking system (OPS)

Order number: A05.5S0

0.21.20

V

orspru

All

rights reserved,

in

cluding the

technical

C
o
p
y
r
i
g
h
t

A
U
D
I

A
G

I
/
V
K

­3
5
S

ervice.traini

Fax [phone]

AUDI AG
D-

85045

Technical status 10

Prin
A

05.5

modi

Ingolstadt

ted

in Germany

S00

.14.20

right to make

ng@

ng durch Technik

audi.de
367

/05

fications.

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di.de