Audi Q5 User Manual

Service Training
Audi Q5
Self-Study Programme 433
With the introduction of the Audi Q5, Audi is extending its model range to include a compact SUV that sets new standards in its class. In addition to the Audi Q7 and the Audi A6 allroad quattro, Audi is now introducing a third model for the off-road segment.
The Audi Q5 will be manufactured at the Ingolstadt facility, this being a logical choice of location because the Audi Q5 is based on components used in the Audi A4 ‘08.
The new Audi Q5 combines the dynamism of a sports saloon with highly variable interior and versatile options for leisure-time and family use. Strong and efficient engines, Quattro permanent all-wheel drive and agile running gear have been brought together to create a superior technology package for both on and off road driving. Highlights such as the innovative S tronic seven-speed dual-clutch gearbox and the Audi drive select driving dynamics system ar e the evidence that substantiates the Q5's claim to Vorsprung durch Technik. The sportiest SUV in its class, it is dynamic, multifunctional and comfortable.
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The objectives of this Self-Study Programme
This Self-Study Programme describes the design and function of the new Audi Q5. After you have worked your way through this Self-Study Programme, you will be able to answer the following questions:
– How is the bodyshell designed, and what materials are used? – Which engines and gearboxes are installed? – Which modifications have been made to the running gear and the brakes? – What are the special features of the electrical system? – How does the air conditioning system in the Audi Q5 function? – What are the special features of the maintenance concept which have to be kept in mind?

Engine-gearbox combinations

2.0l TFSI
3.2l V6 FSI*
0B2
0B5
0B5
2.0l TDI
3.0l TDI
* Not available at market launch
0B2
0B5
0B5
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Contents
Engine-gearbox combinations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
In brief . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Body
Body Audi Q5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Repair concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Occupant protection
Occupant protection system in the Audi Q5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Driver airbag in the Audi Q5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Running gear
Axles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Damping control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Steering system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Brake system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Wheels and tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Electrical system
Fuses and relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Front outside lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Rear outside lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Audi drive select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Networking - vehicles with infotainment CAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Networking - vehicles with MOST bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Installation overview - control units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Headlight Assist System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Infotainment
Infotainment systems overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Overview - sound systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Sound systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Aerial diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Aerial system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Air conditioning
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Heated cupholder Z105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Pre-heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Service
The Advanced Maintenance Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
New workshop equipment for body repairs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Self-study programmes about the Audi Q5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
The Self-Study Programme teaches the design and function of new vehicle models, new automotive components or new technologies.
The Self-Study Programme is not a Repair Manual. The values given are for illustration purposes only and refer to the software version valid at the time of publication of the SSP.
For information about maintenance and repair work, always refer to the current technical literature.
NoteReference
Introduction

Summary

Dimensions
* Max. headroom
Specifications are given in mm Specified dimensions refer to kerb (unladen) weight of vehicle
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** 2400 kg braked on an 8 % gradient
2000 kg braked on a 12 % gradient 750 kg unbraked
Length in mm 4629 Internal width, front in mm 1465
Width in mm 1880 Internal width, rear in mm 1432
Height in mm 1653 Headroom, front in mm 1043
Track width, front in mm 1617 Headroom, rear in mm 990
Track width, rear in mm 1613 Through-loading width in mm 1050
Wheelbase in mm 2807 Load sill height in mm 693
Trailer load in kg** 750/2400/2000 Luggage capacity in l 540
Kerb weight in kg 1865 Fuel tank capacity in l 75
Max. allowable gross weight in kg 2445 Drag coefficient in c
6
w
0.33
Interior dimensions
Off-road performance
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Wading depth
Ground clearance
Overhang angle
Max. climb angle
Breakover angle
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7

Body

The body of the Audi Q5

The steel body of the Audi Q5 with its function and weight optimised design is yet another example of advanced body design by Audi. To meet the demands on the Audi Q5, the various body components have been made using steel materials designed to optimally absorb the structural and dynamic forces to which the vehicle can be subjected both in day-to-day use and in the event of a collision.
For this reason, only 30.8 % of the components in the Audi Q5 are manufactured from regular deep­drawn steel. High and advanced high strength steels account for nearly 60 % of all materials used ­a significant proportion. Parts manufactured from ultra-high-strength, die­quenched steels account for over 9 %, which is likewise a relatively large proportion. However, when manufacturing parts from this material, the zinc coating otherwise normally applied to Audi body panels would evaporate during the heat shaping process, because zinc has a boiling point of 907 °C and the process temperature is higher than that.
For this reason, the sheet-metal panels used for making die-quenched body parts are hot-dip coated with aluminium, which also has the advantage of protecting the steel surface against corrosion. Whereas steel was also the material of choice for the doors, the engine hood and tailgate are made of aluminium.
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Ultra-high-strength die-quenched 9.1 %
Ultra-high-strength 3.3 %
Advanced high strength 12.3 %
High strength 44.5 %
Regular grade steel 30.8 %
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Body
The body of the Audi Q5
To optimise the performance of the B post in a side­impact collision, it is important that the lower section of the post be able to absorb more deformation energy than the upper section - which, ideally, should have a very rigid construction. This was made possible, e.g. in the Audi A4 ‘08, through the use of tailored blanks.
Rear longitudinal beam, partially die-quenched
The B post in the Audi Q5 is partially heated and then reshaped, as a result of which the upper section of the post has properties an ultra high strength die-quenched steel and the lower section those of an ultra-high-strength steel. This process is also applied to the rear longitudinal beams. Here, the rearmost section is able to absorb more deformation energy than the more rigid front section of this component.
B post, partially die-quenched
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10

Repair concepts

The increased use of ultra-high-strength steels necessitates the use of body repair methods adapted specially to suit the properties of the materials. High heat input welding will irreversibly compromise the strength and structure of the component due to microstructural changes in the material. A body structure thus welded cannot, therefore, reliably meet the requirements. It is important to apply a very high contact pressure and a precision controlled electrical current during
Following extensive tests, modern spot welding machines that meet precisely these requirements are now available through Workshop Equipment. MAG gas shielded arc welding may only be performed on these high-grade steels in specific areas, on a case-by-case basis. They are described in the workshop literature. After miscellaneous tests and crash simulations on repaired ultra-high­strength, die-quenched steel body parts of the Audi Q5, Audi has approved two repair points at
which MAG welding is permissible: spot welding work on ultra-high-strength die­quenched steels.
1. B post upper section (defined cutting position, reinforcement required)
Cutting position on B post
Weld seam
B post reinforcement
2. Partial replacement of side member/sill at inner front (defined cutting position, reinforcing required)
Cutting position Inner side member
Reinforcements Side member
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11

Occupant protection

Occupant protection system in the Audi Q5

On the following pages you will be provided with an overview of the occupant pr otection system in the Audi Q5. For further information about the restraint systems in the Audi Q5, please refer to Self-Study Programmes 392 Audi A5 and 409 Audi A4 ’08. The diagrams and illustrations shown in the chapter on "Occupant protection" are intended to aid understanding.
The occupant protection system in the Audi Q5 consists of the following components and systems:
– Airbag control unit – Driver airbag, adaptive – Front passenger airbag, adaptive – Front side airbags – Head airbags – Front airbag crash sensors (upfront sensors) – Crash sensors for side impact detection in the doors – Crash sensors for side impact detection on the C posts – Front belt tensioners with adjustable belt force limiters – Battery disconnect safety device – Seat belt reminder for driver and front passenger – Seat belt switch, driver and front passenger side – Seat occupancy sensor in the front passenger seat – Driver and front passenger seat position sensors
The vehicle can also be equipped with rear side airbags and/or a key switch for deactivating the front passenger airbag, complete with a warning lamp.
On account of the different requirements and statutory regulations of the various markets on vehicle manufacturers, equipment specifications - particularly for the US market - can vary.
Legend:
E24 Driver side belt switch E25 Front passenger side belt switch E224 Airbag disabling key switch,
front passenger side (optional)
G128 Seat occupancy sensor, front passenger side G179 Side airbag crash sensor, driver side
(driver door )
G180 Side airbag crash sensor, front passenger
side (front passenger door)
G256 Rear side airbag crash sensor,
driver side (C post)
G257 Rear side airbag crash sensor,
front passenger driver side (C post)
G283 Driver side front airbag crash sensor
(left front end)
G284 Front passenger side front airbag crash
sensor (right front end) G551 Belt force limiter, driver side G552 Belt force limiter, front passenger side G553 Seat position sensor, driver side G554 Seat position sensor, front passenger side
J393 Convenience system central control unit J533 Data bus diagnostic interface (Gateway) J623 Engine control unit
K19 Seat belt warning system warning lamp K75 Airbag warning lamp K145 PASSENGER AIRBAG OFF warning lamp
(optional)
N95 Airbag igniter, driver side N131 Front passenger side airbag igniter 1 N132 Front passenger side airbag igniter 2 N153 Driver seat belt tensioner igniter -1­N154 Front passenger seat belt tensioner igniter -1­N199 Side airbag igniter, driver side N200 Side airbag igniter, front passenger side N250 Driver side airbag igniter -2­N251 Driver side curtain airbag igniter N252 Front passenger side curtain airbag igniter N253 Battery isolation igniter
T16 16-pin connector, diagnostic port
J234 Airbag control unit J285 Control unit with display in dash panel insert
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Occupant protection

Driver airbag in the Audi Q5

Driver side airbag igniter 1 N95 Driver side airbag igniter -2- N250
All Audi Q5 models distributed world-wide are equipped as standard with an adaptive driver airbag. This driver airbag has a single-stage solid fuel generator with an additional external igniter.
Igniter 1 is activated electrically by the airbag control unit J234, thus igniting the ignition charge.
Metal filter
Foil
Vent hole
Nozzle ports
Combustion of the ignition charge causes the pressure inside the capsule to increase until it bursts, thereby igniting the propellant charge through the nozzle ports. If the gas pressure produced by the combustion of the propellant charge exceeds a predefined value, the foil opens the vent holes. The gas is thus free to flow unobstructed through the metal filter to the airbag. The airbag unfolds and is inflated.
Metal filter
Foil
Vent hole
Propellant charge
Ignition charge
Driver side airbag igniter -2- N250 is located inside the airbag module. It is integrated in a unit comprising the baseplate, a control ring with ports and the distributor housing.
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Propellant charge
Capsule
Igniter 1
Distributor housing
Igniter 2
Control ring
Retaining clip
Baseplate
14
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As long as igniter 2 is not activated, the supplemen­tary vent holes in the distributor housing are kept sealed by the control ring.
The gas from the gas generator flows out through the upper ports in the distributor housing and directly into the airbag. A retaining clip holds the control ring in the rest position. This prevents unwanted rotation of the control ring.
Distributor housing
Igniter 2
Control ring
Retaining clip
Baseplate
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The airbag control unit J234 decides when to activate igniter 2 N250 according to the force of the impact and the driver's seating position.
When igniter 2 is ignited, the developing gas pressure displaces a pin, which in turn rotates the control ring. The supplementary vent holes in the distributor housing are opened. The residual gas from the gas generator can now partially vent directly into the atmosphere. The gas discharging from the airbag can also escape into the atmosphere through the orifices in the distributor housing. Thereby, the airbag is not inflated any further and thus "adapted" to the occupants.
Control ring
Baseplate
Pin
Distributor housing
Igniter 2
Retaining clip
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The gas generator of the driver airbag module is oscillatingly mounted in a rubber ring in a fashion depending on model type. This minimises steering wheel vibration.
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Running gear

Axles

The Audi Q5 comes as standard with standard running gear (production control number 1BR) in combination with quattro drive. An electronic damping control system is optionally available in combination with Audi drive select.
Front axle
The front axle design is basically the same as that of the Audi A4 ‘08. The newly developed components are indicated below.
Drive shaft Track width adjustment (+29 mm)
Anti-roll bar higher axle load, larger track width (+58 mm) than Audi A4
Springs/shock absorbers new set-up
Upper wishbone bearing new set-up
Subframe Geometric modification due to larger track width than Audi A4
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Rear axle
The front axle design is basically the same as that of the Audi A4 ‘08. The newly developed components are indicated below.
Anti-roll bar: Shock absorbers: new set-up increased volume higher heat output
new set-up, larger track width (+62 mm)
than Audi A4
Drive shaft: track width adjustment (+31 mm)
Wheel carrier: higher axle load than Audi A4 Deleted: ball joint
Springs: new set-up Spring diameter (+ 20 mm)
Subframe bearing: transversely rigid and longitudinally soft subframe bearings front: conventional rear: hydraulic
Subframe: adjusted track width of cross beam (+62 mm)
Stone chip protection: Geometric modification due to larger spring diameter than Audi A4
Track rod: Adaptation to larger spring diameter: Installation rotated through 180°
Rear wheel carrier/trapezoidal link bearing: Elastomer joint higher axle load than Audi A4
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17
Running gear

Damping control system

The damping control system is available as optional equipment in combination with Audi drive select under production control number 1BL. The damping control system is designed, functions and operated in the same way as the system in the Audi A4 ‘08. The detail modifications to the components are indicated below.
Body acceleration sensors G341 – G343 on the front and rear axles:
Geometric modification due to adaptation to body contour
Front and rear axle shock absorbers:
modified shock absorber set-up
ECD (electronically controlled damping) control unit J250:
Software adjustment
18
Shock absorber damping adjustment valves N336 – N339 on front and rear axles:
modified set-up
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Level control system senders G76 – G78, G289 on front and rear axles:
Geometric modification due to adaptation to body contour

Steering system

The steering system of the Audi Q5 is basically designed and functions in the same way as the steering system in the Audi A4 ‘08. A hydraulic rack and pinion steering system with a mechanically adjustable steering column and power steering lock are used. The speed-sensitive power steering system is standard equipment with engines developing 140 kW or higher. The dynamic steering system already featured in the Audi A4/A5 ‘08 is optionally available in combination with Audi drive select. The detail modifications to the components are indicated below.
Steering wheel:
Modifications to
Steering column:
larger rake angle due to modified mounting bracket modified adjustment range: 60 mm horizontal; 44 mm vertical
the airbag system
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Steering gear:
The steering rack is 52 mm longer than in the Audi A4 ‘08 due to the larger track width, and piston diameter has been enlarged by 2 mm to 44 mm due to the higher axle load
Oil reservoir:
The oil reservoir with fine filter previously used in the Audi A6 has been adopted
Dynamic steering
The dynamic steering system is designed and functions in the same way as the system in the Audi A4 ‘08. The control software in the active steering control unit J792 has been adapted to suit the vehicle's characteristics and the extended conditions of use.
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Running gear
Steering pump
The volume-flow controlled vane steering pumps as used previously in the Audi A4 ‘08 are also used in all models which do not have dynamic steering. Compared to the Audi A4 ‘08, the maximum delivery rate (shut-off point) has been increased to 8.5 l/min from 7.9 l/min to allow for the higher axle load of the Audi Q5. Models which have dynamic steering come equipped with the steering pump with ECO function as used previously in the Audi A4 ‘08 with dynamic steering.
Volume-flow controlled vane steering pump
Reference
For detailed information about the design and mode of functioning of the dynamic steering system, please refer to SSP 402 - Dynamic Steering in the Audi A4 ‘08. For further information about the vane pump, please refer to SSP 394 - Audi A5 - Running Gear.

Brake system

Wheel brakes
The wheel brakes are based on the proven concept of the Audi A4 ‘08. In the Audi Q5, adaptation of the wheel brakes to the higher performance demands (larger wheel diameter, higher kerb weight) is provided by a modified hydraulic transmission. To this end, uprated brake pistons are used in combination with large brake pad surfaces and larger brake discs.
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The brake discs have been designed for high cooling capacity by means of special cooling ports and friction interfaces. Special emphasis was placed on systematic lightweight construction during the development process. The front axle is fitted with the proven FBC floating calipers as used previously on the Audi A4 ‘08. This brake caliper concept maximises rigidity and minimises weight by means of composite technology (nodular cast iron floating caliper, aluminium casing).
Reference
For detailed information about the design and mode of functioning of the FBC brake calipers, please refer to SSP 394 Audi A5 - Running Gear.
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Front axle
Engine 4-cylinder 2.0l TDI
4-cylinder 2.0l TFSI
V6 3.0l TDI
V6 3.2l TFSI
Minimum wheel size 16“ 17“
Brake type TRW-FBC-60 16“ TRW-FBC-6017“
Number of pistons 1 1
Piston diameter (mm) 60 60
Brake disc diameter (mm) 320 345
Rear axle
Engine 4-cylinder 2.0l TDI
4-cylinder 2.0l TFSI
V6 3.0l TDI
V6 3.0l TDI
Minimum wheel size 16“ 17“
Brake type CII-43-EPB 16“ CII-43-EPB 17“
Number of pistons 1 1
Piston diameter (mm) 43 43
Brake disc diameter (mm) 300 330
Brake disc
Brake caliper
Brake pad
Gauge pin T40139
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The rims and brake calipers have been designed in such a way that the thickness of the brake pads at all wheels can be measured using gauge pin T40139.
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Running gear
Brake system
Electromechanical parking brake
The electromechanical parking brake EPB used in the Audi Q5 is designed and functions in the same way as the system in the Audi A4 ‘08.
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Reference
For detailed information about the design and mode of functioning of the electromechanical parking brake and the brake servo, please refer to SSP 394 - Audi A5 ­Running Gear.
Brake servo, master brake cylinder
The brake servo and master brake cylinder of the Audi Q5 are designed and function in the same way as those of the Audi A4 ‘08. The characteristic of the brake servo have been adapted to the modified hydraulic transmission system of the brake system.
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ESP
A new ESP generation by Bosch with the designa­tion ESP Plus is used in the Audi Q5. Compared to the ESP 8.1, the ESP Plus system has been optimised in design and functioning.
The basic functions of EBD, ABS, EDL, TCS, ESP, EBC etc. are identical to those of the ESP 8.1. In addition, there are new functions - which are
explained below. The electric pump drive motor has been uprated, thus optimising its dynamic control behaviour.
ESP Offroad Mode
The ESP Offroad Mode has been developed specifically for use in rough terrain. When ESP Offroad Mode is active, the ESP control processes are adapted to the offroad conditions. ESP control processes are effected much later, thereby allowing drift movements about the vehicle's vertical axis and partial wheel spin. This ensures that optimum traction is achieved on soft or loose surfaces.
ESP Offroad Mode can be activated using the ESP Off switch. When ESP Offroad Mode is active, "ESP Offroad" is displayed in the driver information system or on the centre display and indicated by the activated ESP symbol.
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23
Running gear
Brake system
ESP control
Automatic offroad detection
In 2009, for the first time, the existing ESP functions will be extended to include an automatic offroad recognition feature. This feature will be imple­mented by evaluating the wheel oscillation as indicated by the wheel speed signals.
When offroad conditions are detected, the control characteristics of the ABS, TCS and EDL systems are modified accordingly. Higher slip values are allowed at the wheels. When braking, for example, partial locking of the wheels causes wedges to form in front of the wheels due to the displacement of loose surface material. These wedges increase motion resistance, i.e. they provide additional braking. If the driver has activated the ESP Offroad Mode using the ESP OFF button, offroad conditions are detected even more quickly than by automatic detection.
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Downhill Assist Control
In the Audi Q7, the function is activated by depress­ing the foot brake. In the Audi Q5, the Downhill Assist Control can, for the first time, be activated by a separate switch. Unlike comparable systems of other manufacturers, the system in the Audi Q5 is not preset to a very low constant nominal speed. The control variable is the speed at which the vehicle is travelling on entering the gradient. The system basically functions in the same way as the system in the Q7. Like in the Q7, the function of the EBD is modified when reversing by applying increased braking force to the rear axle. This is detected by the fact that reverse gear is engaged. Downhill Assist Control is also active when no gear is engaged or the clutch is actuated.
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Downhill Assist Control
The intervention range has been extended over the Audi Q7 and, in the case of the Audi Q5, is at speeds of between 9 kph and 30 kph. The function can be switch-operated at speeds of up to 60 kph. The function is automatically deactivated when a speed of 60 kph is exceeded.
Status
active
Standby
deactivated
< 9 60≤ 30
Speed in kph
When Downhill Assist Control is active and in Standby mode, this is indicated to the driver in the centre display at speeds of up to 30 kph. The LED in the switch lights up when the function is activated at speeds of up to 60 kph.
Towing vehicle and trailer stabilisation system
The towing vehicle and trailer stabilisation system basically functions in the same way as the system implemented already on other Audi models. The oscillation within the typical frequency range for a towing vehicle and trailer (approx. 0.5 Hz to 1.5 Hz) is evaluated by the ESP system. If a defined amplitude threshold is exceeded three times in succession, the stabilisation system is activated. Depending on yaw velocity, the towing vehicle and trailer are stabilised in two phase. In the first phase, the wheels are braked asymmetrically.
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The aim is to stabilise the towing vehicle and trailer
without a large amount of longitudinal deceleration
(max. approx. 1.5 m/s2). If this is insufficient, it is
followed by a second phase in which all four
wheels are braked with the aim of achieving high
longitudinal deceleration (approx. 3.5 m/s2).
The braking operations are performed below the
ABS intervention threshold. An active stabilisation
system is indicated by flashing of the ESP warning
lamp. At the same time, the brake lights are
activated.
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Running gear
Roof rack detection
For the first time in a SUV, the Audi Q5 has the ability to detect a mounted roof rack and take this in account in the ESP control logic. A roof rack has a significant effect on the centre of gravity height of a vehicle. The control characteristics of the ESP system in the Audi Q5 are adapted to the change in centre of gravity height.
A Hall sensor, connected to the ABS control unit/
ESP by a discrete line, is integrated in the standard
roof rail.
The cross bars (also standard) have an integrated
permanent magnet which triggers a corresponding
sensor signal when cross bars are mounted.
ESP
Maximum roof load including cross bars 100 kg
Roof rail with Hall sensor
Cross bars with integrated permanent magnet
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Wheels and tyres

17‘‘ wheels 18‘‘ wheels 19‘‘ wheels 20‘‘ wheels 17‘‘ wheels
8J x 17 ET 39 (1) Forged aluminium wheel, painted 235/65 R17 (basic wheel for all engine versions)
8J x 17 ET 39 (2) Cast aluminium wheel, painted 235/65 R17 (optional for all engine versions)
The Audi Q5 is equipped as standard with a tyre repair kit. A size 195/75-R18 folding wheel is optionally available.
8J x 18 ET 39 (3) Cast aluminium wheel, painted 235/60 R18 (optional for all engine versions)
8J x 18 ET 39 (4) Cast aluminium wheel, painted 235/60 R18 (optional for all engine versions)
8J x 19 ET 39 (5) Cast aluminium wheel, painted 235/55 R19 (optional for all engine versions)
8J x 19 ET 39 (6) Cast aluminium wheel, polished 235/55 R19 (optional for all engine versions)
8.5J x 20 ET 33 (7) Cast aluminium wheel, painted 255/45 R20 (optional for all engine versions)
8.5J x 20 ET 33 (8) Cast aluminium wheel, Chrome clad 255/45 R20 (optional for all engine versions, available in USA only)
7.0J x 17 ET 37 (9) Forged aluminium wheel, painted 235/60 R17 (winter wheel for all engine versions)
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Electrical system

Fuses and relays

The electrical system of the Audi Q5 is basically the same as that of the Audi A4 ‘08. This applies equally to the installation locations of the fuseboxes and relay panels, the CAN node connectors and the control units.
Fuse panel and external
starter connection in
plenum chamber
Fuse panel in dash panel
on right and CAN node
connector
The gateway, battery monitor control unit, alternator
and external starter connection are also the same as
for the Audi A4 ‘08.
Relay panel and onboard power
supply control unit holder in
driver footwell
Relay and fuse panel in
luggage compartment
on right
433_081
Relay and fuse panel
in electronics box
Connector station and CAN
node connector on A post,
bottom left
Fuse panel in dash panel
on left
Fuse panel and battery
disconnect safety device at
battery positive terminal
The following control units are new features of the Audi Q5:
– Rear lid control unit J605* – Rear lid control unit -2- J756* – Headlight assist control unit J844** – Information electronics control unit -1- J749 (vehicles with MOST bus)** – External radio sources connection R199 (vehicles with infotainment CAN)** – Four-wheel drive control unit J492*** – Sunroof roller blind control unit J394*
* installed on Audi Q5 only ** dependent on trim version (also featured on the Audi A4 and A5) *** dependent on trim version (to be rolled out at a later date on models including the Audi A4 and A5)
Reference
For further information, please refer to SSP 395 - Audi A5 – Onboard Power Supply and Networking and SSP 409 Audi A4 ‘08.
28

Front outside lights

Versions
As with the Audi A4 ‘08, a distinction is also made between three different headlight versions in the Audi Q5:
– Halogen headlight – Bi-xenon headlight – Bi-xenon headlight with adaptive light (dynamic cornering light)
Layout of the lamps in the halogen headlight
Turn signal – PY24W/24 watts
Replacement by specialist workshops only
Layout of the lamps in the bi-xenon headlight and bi-xenon headlight with adaptive light
Main-beam headlight – H7LL/55 watts
Can be replaced by customer
Daytime running light – P13W/13 watts
Can be replaced by customer
Position light/daytime running light – LED
Dipped headlight – H7LL/55 watts
Can be replaced by customer
Side reflector (ECE*)/ Sidemarker (SAE**) – W5W/5 watts
Can be replaced by customer
433_188
Daytime running light/position light – P13W/13 watts
Can be replaced by customer
Dipped/main-beam headlight – D3S/35 watts
Replacement by specialist workshops only
Turn signal – PY24W/24 watts
Replacement by specialist workshops only
* ECE for the European market ** SAE version for the North American market
The headlights on the Audi Q5 are mounted on a bracket which allows them to be moved approx. 50 mm after removing a cover and the headlight mounting screws. Thus, enough space is available for replacing the bulbs. No provision is currently made for the replacement or repair of faulty LEDs.
Side reflector (ECE*)/ sidemarker (SAE**) – LED
433_189
Note
For further information on the replacement of light bulbs, please refer to the current service literature.
29
Electrical system

Rear outside lights

Layout of the rear lamps
As with the Audi Q7, a distinction is also made between main rear lights - in the tailgate - and auxiliary rear lights - in the bumper. Since the main rear lights swing upwards with the tailgate when it is opened, a set of fixed auxiliary rear lights must be installed on the rear bumper.
Main rear light in the tailgate
The brake/tail light and the turn signal lamp are
housed in the main rear light.
The auxiliary brake/tail lights and turn signals as
well as the reversing lights and the rear fog lights
are integrated in the auxiliary rear lights.
Main rear light in the tailgate
433_178
Auxiliary rear lights in the bumper
30
Auxiliary rear lights in the bumper
Versions
The rear lights come in various versions:
– Basic version – in combination with the halogen
headlight
– LED version in combination with the bi-xenon
headlight or bi-xenon headlight with adaptive light
– LED version for North American markets
Rear lights – basic version
1
2
3
433_104
4
5
Function in the tailgate Type Power output Duty cycle
1 Brake/tail light and parking light P21W 21 W Tail light/parking light duty cycle approx. 32 %
2 Brake light and tail light P21W 21 W Tail light duty cycle approx. 32 %
3 Turn signal PY21W 21 W
6
433_103
Brake light 100 %
Brake light 100 %
7
Function in rear bumper Type Power output Duty cycle
4 Brake/tail light and parking light W16W 16 W Tail light/Parking light duty cycle approx. 32 %
5 Turn signal PY21W 21 W Active at switchover
6 Reversing light W16W 16 W
7 Rear fog light W16W 16 W
Brake light 100 % active at switchover
31
Electrical system
Rear outside lights
Versions
1
3
2
4
6
8
5
Rear lights – LED version
Function in the tailgate Type Power output Duty cycle
1 Brake/tail light and parking light 20 LEDs Tail light/parking light duty cycle approx. 12 %
2 Brake light 6 LEDs Brake light 100 %
3 Turn signal 24 LEDs
Function in rear bumper Type Power output Duty cycle
4 Brake/tail light and parking light W16W 16 W Tail light/Parking light duty cycle approx. 32 %
5 Turn signal P21W 21 W Active at switchover
6 Reversing light W16W 16 W
7 Rear fog light W16W 16 W
Brake light 100 %
Brake light 100 % Active at switchover
Rear lights – LED version for North American markets
7
433_102
Function in the tailgate Type Power output Duty cycle
1 Brake/tail light and parking light 20 LEDs Tail light/parking light, duty cycle approx. 12 %
2 Brake light 6 LEDs Brake light 100 %
3 Turn signal 24 LEDs
Function in rear bumper Type Power output Duty cycle
4 Brake/tail light and turn signal W16W 16 W Tail light duty cycle approx. 29 %
5 Brake/tail light and turn signal P21W 21 W Tail light duty cycle approx. 20 %
6 Reversing light W16W 16 W
7 Rear fog light W16W 16 W
8 Side Marker W5W 5 W
Brake light 100 %
Brake light 100 % Active at switchover
Brake light 100 % Active at switchover
Activation of the rear lights
Unlike the Audi Q7, all rear lights on the Audi Q5 are activated by the convenience electronics central control unit J393. The J393 is also responsible for switching over the rear lights. The "third brake light" function is provided by 18 LEDs integrated in the tailgate upper section.
32
Switchover of the rear lights
Symmetrical switchover on opening the tailgate
When the tailgate is opened, the brake/tail lights and the turn signals are switched over from the main rear lights to the auxiliary rear lights. The lamps in the main rear lights are then deactivated. When the tailgate is closed again, the system switches back to the main rear lights. The auxiliary rear lights are then deactivated again.
Asymmetric switchover in the event of lamp failure
In the event of failure of a turn signal/brake light or tail light function, the system switches over asym­metrically to the lamp in the auxiliary rear light, i.e. only the faulty side is switched over. If this occurs, a fault message is indicated via the dash panel insert. If the system switches over to the auxiliary rear lights because the main rear lights have failed, no attempt is made to switch on the main rear lights again until the next terminal 15 cycle begins.
433_101
Functional sequence for the symmetrical switchover of rear lights
Components involved:
– Convenience system central control unit J393 – Rear lid closed sender -1- G525 – Rear lid closed sender -2- G526 – Rear lid contact switch F123 – Main rear lights – Auxiliary rear lights
Main rear light G525 G526 F123
Turn signal
Brake light/
tail light
Convenience system central control unit
Brake light/
tail light
433_100
The convenience system central control unit J393
recognises the position of the tailgate from the
positions (open/closed) of G525, G526 and F123.
Unlike with the Audi Q7, the switch position of the
F123 is additionally evaluated on the Audi Q5.
J393
Turn signal
Brake light/tail light Reversing light Rear fog light
Auxiliary rear light
433_105
33
Electrical system
Rear outside lights
Replacing light bulbs
As with the Audi Q7, the light bulbs of the main rear lights can be replaced after removing the covers. To make it easier to grip and rotate the light sockets, a special tool can be found inside the main rear light covers.
Rear light
Tool
In this case, it is not necessary to remove the rear
light.
The light bulb replacement procedure described
here applies to the basic rear light only.
No provision is made for repair or replacement of
individual LEDs in the LED rear light.
Cover the rear light in the tailgate
Lamp socket
The auxiliary rear lights must be removed to replace light bulbs. As with the Audi Q7, the screw connection is accessible after removing the cover in the rear bumper.
Cover
Note
For further information on the replacement of light bulbs, please refer to the current service literature.
Tool for gripping and rotating the lamp socket
433_193
433_143433_142
34

Audi drive select

Like the Audi A5 and the Audi A4 ‘08, the Audi Q5 is optionally available with the innovative Audi drive select system. Previously, systems such as the automatic gearbox or the damping control system, could only be controlled separately via the "Sport" setting. The Audi drive select system now allows multiple systems, the engine, the automatic gearbox, the damping control system, the Servotronic system, the dynamic steering system and the sport differential* to be set at the touch of a button. In this way, completely individual vehicle's characteristics can be configured. The behaviour of these systems is controlled electronically and can be adjusted to between comfortable and dynamic.
COMFORT DYNAMIC
Engine
normal normal Sport mode
Audi drive select is also referred to in-house or in
the service literature as "Charisma". The centrepiece
of the system is the Charisma switch module E592,
which is used to read in and communicate the
driver's input to the onboard power supply control
unit J519.
* To be introduced at a later date
Reference
For further information about the Audi drive select system, please refer to SSP 409 Audi A4 ‘08.
AUTO
Automatic gearbox
Servotronic
Dynamic steering
Damping control system
Sport differential*
normal
as usual in
selector lever
position "D"
normal
as usual in
selector lever
position "D"
Sport program
easy action normal firm
comfortable and indirect
comfortable
and soft
sporty
and direct
sporty
and direct
normal sporty
and firm
weak medium strong
35
Electrical system

Networking - vehicles with infotainment CAN

Rear-view camera
Air quality sensor
G238
Front right seat
ventilation control
unit J799
system control unit
J772
Refrigerant
pressure/
temperature sender
G395
Garage door
operation
control unit
J530
Light switch
E1
Wiper motor
control unit
J400
Rain and light
detector sensor
G397
Electrical steering
column lock control unit
J764
Entry and start
authorisation
switch
E415
Garage door
operating unit
E284
Front left seat
ventilation
control unit
J800
Charisma switch
module
E592
Onboard power supply
control unit
J519
Convenience system central
control unit
J393
Alarm horn
H12
Trailer detector
control unit
J345
Steering column
electronics
control unit
J527
Seat and steering
column adjustment
control unit with
memory
J136
Special vehicle
control unit
J608
Driver door
control unit
J386
Front passenger door control unit
J387
Rear lid
control unit
J605
Multifunction
steering wheel
control unit
J453
Door control unit,
rear left
J388
Door control unit,
rear right
J389
Rear lid
control unit -2-
J756
Sunroof roller blind
Humidity sender
36
Sliding sunroof
control unit
J245
control unit
J394
Anti-theft alarm
system sensor
G578
G355
Climatronic control unit
Fresh air blower
J255
control unit
J126
Flap control
motors
Tyre pressure
monitor control
unit
J502*
* for USA only
Power output
module for left
headlight
J667
Power output
module for right
headlight
J668
Powertrain CAN bus
Convenience CAN bus
Dash panel insert/ suspension CAN bus
CAN Extended
Infotainment CAN bus
Diagnostics CAN bus
LIN bus
Sub-bus systems
ESP sensor unit
G419
ESP sensor unit -2-
G536
Control unit with
display in dash
panel insert
J285
Parallel Park Assist
control unit
J791
ABS control unit
J104
Active steering
control unit
J792
Steering angle
sender
G85
Electric park and
handbrake
control unit
J540
Additional heater
control unit
J364
433_106
Diagnostic port
Engine
control unit
J623
Airbag
control unit
J234
Automatic gearbox
control unit
J217
ECD control unit
(electronically
controlled damping)
J250
Four-wheel drive
control unit
J492
Data bus diagnostic interface
warning system
Headlight Assist
J533
Adaptive cruise
control unit
J428
Lane departure
control unit
J759
control unit
J844
Lane change
assistant
control unit
J769
Battery monitor
control unit
J367
3-phase AC
alternator
C
Radio
R
Digital sound
package
control unit
J525
Telephone
transmitter and
receiver unit
R36
External
radio sources
connection
R199
433_051
Headlight range
control unit
J745
Lane change
assistant
control unit -2-
J770
37
Electrical system

Networking - vehicles with MOST bus

Air quality sensor
G238
Front right seat
ventilation control
unit J799
Rear-view camera
system control unit
J772
Refrigerant
pressure/
temperature sender
G395
Garage door
operation
control unit
J530
Light switch
E1
Wiper motor
control unit
J400
Rain and light
detector sensor
G397
Electrical steering
column lock control unit
J764
Entry and start
authorisation
switch
E415
Garage door
operating unit
E284
Front left seat
ventilation
control unit
J800
Charisma switch
module
E592
Onboard power supply
control unit
J519
Convenience system central
control unit
J393
Alarm horn
H12
Trailer detector
control unit
J345
Steering column
electronics
control unit
J527
Seat and steering
column adjustment
control unit with
memory
J136
Special vehicle
control unit
J608
Driver door control unit
J386
Front passenger
door control unit
J387
Rear lid
control unit
J605
Multifunction
steering wheel
control unit
J453
Door control unit,
rear left
J388
Door control unit,
rear right
J389
Rear lid
control unit -2-
J756
Tyre pressure
Sliding sunroof
control unit
J245
Sunroof roller blind
control unit
J394
Anti-theft alarm
system sensor
G578
Humidity sender
G355
38
Climatronic control unit
J255
Fresh air blower
control unit
J126
Flap control
motors
monitor control
unit
J502*
* for USA only
Power output
module for left
headlight
J667
Power output
module for right
headlight
J668
Control unit with
display in dash
panel insert
J285
Steering angle
sender
G85
Powertrain CAN bus
Convenience CAN bus
Dash panel insert/ running gear CAN
CAN Extended
Diagnostics CAN bus
LIN bus
Sub-bus systems
MOST bus
ESP sensor unit
ESP sensor unit -2-
Diagnostic port
Engine
control unit
J623
Airbag
control unit
J234
G419
G536
Parallel Park Assist
control unit
J791
ABS control unit
J104
Active steering
control unit
J792
Four-wheel drive
control unit
J492
Data bus diagnostic interface
J533
Adaptive cruise
control unit
J428
Lane departure
warning system
control unit
J759
Electric park and
handbrake
control unit
J540
Additional heater
control unit
J364
Information
electronics
control unit -1-
Digital sound
control unit
J794
package
J525
MMI display
J685
Mediaplayer
in position 1
R118
Radio
R
TV tuner
R78
Automatic gearbox
control unit
J217
ECD control unit
(electronically
controlled damping)
J250
Headlight range
control unit
J745
Headlight Assist
control unit
J844
Lane change
assistant
control unit
J769
Lane change
assistant
control unit -2-
J770
Battery monitor
control unit
J367
3-phase AC
alternator
C
433_067
39
Electrical system

Installation overview - control units

Adaptive cruise control unit
Tyre pressure monitor control unit (USA)
Additional heater control unit
External radio source connection
Mediaplayer 1
Data bus diagnostic interface
Automatic gearbox control unit
Headlight range control, control unit
Telephone transmitter and receiver unit
Climatronic control unit
Lane departure warning system control unit
Front passenger door control unit
Airbag control unit
Dash panel insert
Convertible top operation ABS
Powertrain CAN users
Convenience CAN users
Dash panel insert/ running gear CAN users
CAN Extended users
LIN bus users
Sub-Bus users
MOST bus users
Engine control unit
Radio (CAN)
Onboard power supply control unit
Steering column electronics control unit
Headlight Assist control unit
Steering angle sensor
Driver door control unit
40
Rear right door control unit
Seat ventilation control units
Trailer detector control unit
Convenience system central control unit
Rear lid control unit -2­(slave)
Electromechanical parking brake control unit
Rear-view camera control unit
Park assist control unit
ECD control unit (electronically controlled damping)
Special vehicle control unit
Lane change assistant control unit (master)
All-wheel drive control unit
Active steering control unit
Rear left door control unit
Rear lid control unit (master)
TV tuner (MOST)
Radio (MOST)
433_080
Lane change assistant control unit -2- (slave)
Digital sound package control unit (not available with Chorus radio)
41
Electrical system

Headlight Assist System

Function
The new Audi Headlight Assist System is available as optional equipment for the Audi Q5. The system offers the driver better visibility in the dark since the main-beam headlights are always switched on, subject to traffic and ambient conditions.
How the Headlight Assist System works when an oncoming vehicle is detected:
The Headlight Assist System detects build-up areas and towns by street lighting, whereupon it dims the headlights to dipped beam. After leaving the built­up area or town, the headlights are automatically switched back to main beam. The system software also has the ability to detect thick fog,
When the camera of the Headlight Assist System
detects an oncoming vehicle or traffic ahead, the
headlights are dipped in a timely manner in order
to avoid dazzling other road users. Once detected
vehicles move outside the detection range of the
Headlight Assist System again, the headlights are
automatically switched back to main beam.
433_069 433_070433_068
in which case it also dims the headlights to dipped
beam. The Headlight Assist System maximises the
"on" time of the main-beam headlights, and
therefore provides better visibility. The driver has
less workload and can concentrate better on traffic.
How the Headlight Assist System works when passing through a built-up area:
Note
The Headlight Assist System is a driver Assist System, which assists driving in the dark by automatically switching the main-beam headlights on and off. However, it does not discharge the driver from his duty to make responsible use of the main-beam headlights while driving. For this reason, the driver can manually turn the main-beam headlights on and off at any time - even when Headlight Assist is active.
42
433_073433_072433_071
System operation
Activating the Headlight Assist System
To activate the Headlight Assist System, the rotary light switch must be in the "AUTO" position. The Headlight Assist System can be activated by flicking the main-beam stalk forward. The Headlight Assist System must be reactivated during each terminal 15 cycle.
flick forward
"stalk not actuated"
position
Deactivating the Headlight Assist System
The Headlight Assist System is permanently
deactivated when the rotary light switch is rotated
out of the "AUTO" position. Flicking the main-beam
stalk forward deactivates the Headlight Assist
System until the main-beam stalk is again flicked
forward.
pull back
Overriding the Headlight Assist System
The driver can override any decision made by the activated Headlight Assist System (main-beam headlights ON/OFF) at any time.
Main-beam headlights switched on by the Headlight Assist System can be switched off by pulling the main-beam stalk back. This also deactivates the Headlight Assist System.
If the Headlight Assist System has only switched on the dipped headlights, the main-beam headlights can be switched on by flicking the main-beam stalk forwards. This also deactivates Headlight Assist System.
433_074
New features of the main-beam stalk
The Audi Q5 has a modified main-beam stalk in the
steering column switch.
The new main-beam stalk no longer engages in its
end position when it is pushed forward, but returns
to its initial position after it is released.
The steering column electronics control unit J527
monitors when the main-beam stalk is flicked
forward and pulled back, and processes the
information accordingly.
43
Electrical system
Warning lamp in the dash panel insert
An activated Headlight Assist System is indicated in the dash panel insert in the same position as where the total mileage is displayed when the Headlight Assist System is deactivated.
If the main-beam headlights are "on", the familiar blue main-beam headlight warning lamp in the dash panel insert is lit.This lamp is lit regardless of whether the main-beam headlights have been switched on manually or by the Headlight Assist System.
Switch-on and switch-off conditions of the automatic main-beam headlights
433_075
Switching-on of the main-beam headlights by the Headlight Assist System:
The activated Headlight Assist System switches on the main-beam headlights only if all the following conditions are met:
– The camera of the Headlight Assist System indicates that ambient luminosity has dropped below a
preconfigured threshold level,
– the dipped headlights have already been switched "on" at the instruction of the rain and light detector
sensor,
– the vehicle is travelling at a speed of greater than 60 kph,
– neither a vehicle ahead nor oncoming traffic has been detected and
– no built-up area has been detected.
Switching-off of the main-beam headlights by the Headlight Assist System:
If the main-beam headlights have been switched on by the Headlight Assist System, they will be switched off again under the following conditions:
– An oncoming vehicle is detected.
– A vehicle is detected ahead.
– A sufficiently illuminated built-up area is detected.
– The vehicle's speed drops below 30 kph.
– The Headlight Assist System clearly detects fog.
Reference
A separate Self-Study Programme (SSP 434) has been published on the topic of "The Audi Headlight Assist System". It also describes how the Headlight Assist System functions in road traffic, the operating logic of the Headlight Assist System when the main-beam stalk is actuated, the system interface to the vehicle electronics, the communication structure (networking) and the diagnostics.
44
Installation location of the Headlight Assist System
The electronics and optics of the Headlight Assist System are wholly integrated in the rear-view mirror. The camera of the Headlight Assist System is built into the base of the rear-view mirror, which itself is securely mounted on the windscreen. The camera is a special black-and-white camera.
The Headlight Assist control unit J844 is integrated
in the actual rear-view mirror, which is mounted
movably.The Headlight Assist control unit is an
Extended-CAN user and interchanges information
with other control units via this bus.
Headlight Assist System camera
8-pin connector Rear-view mirror / vehicle electronics
433_076
PCB with the hardware of the Headlight Assist control unit J844
433_077
Headlight Assist System camera
Sensor of compass in rear-view mirror
45

Infotainment

Infotainment system overview

Standard Optional radios
chorus radio concert radio symphony radio
Memory Band
Update station list
Bayern 3
Aerial Pop
88.3 MHz
SoundManual
Standard equipment
Car menu CAR menu incl. driver assist
Memory Band
Update station list
Aerial
B 5 AKT News BAYERN 1 BAYERN 2 Bayern 3
12:00
Culture Pop
SoundManual
Control panel in radio
Phase diversity
TP memory function
Memory Band
Update station list
Aerial
B 5 AKT News BAYERN 1 BAYERN 2 Bayern 3
12:00
Culture Pop
SoundManual
Single-CD drive in radio Single-CD drive (MP3/WMA) in radio CD changer (MP3/WMA) in radio
Amplifier in radio
2 x 20 watts for 4 front loudspeakers
Option
SD/MMC memory card reader
AUX IN in centre console (deleted if Audi music interface AMI is installed)
4 x 20 watts with 8 loudspeakers, front and rear
VDA interface for Aftersales mobile phone retrofit
(available in Germany to key accounts only)
Amplifier in radio
Provision for connecting mobile phone to infotainment CAN bus
DAB tuner integrated in radio R
10 loudspeakers driven through a six-channel amplifier connected to infotainment CAN
14 loudspeakers driven through a six-channel amplifier connected to infotainment CAN
Audi sound system
Bang & Olufsen sound system
Audi music interface connected to infotainment CAN
Digital satellite radio
(SDARS for North America only)
46
Radio navigation systems
MMI Navigation plus
All Audi Q5 models are equipped as standard with
the chorus radio with basic sound system. The
concert and symphony radio systems are optionally
available together with other equipment. The
chorus, concert and symphony radio systems are
already featured in the Audi A5.
The MMI Navigation plus system - a 3rd generation
MMI system - is optional on the Audi Q5.
Highlights for the user include the jukebox function,
the speech control system with whole-word input
and a 3D map display for navigation.
The greatest innovation of the MMI Navigation plus
system is the fact that it combines previously
independent control units into a single unit - the
infotainment electronics control unit -1- J794.
MMI control panel in the centre console
CAR menu incl. driver assist
Phase diversity
TP memory function
Dual tuner
2 SD/MMC memory card readers
Single DVD drive integrated in J794
Hard drive (for navigation data and music files) integrated in J794
AUX IN in centre console (deleted if AMI is installed)
4 x 20 watts for 8 loudspeakers, front and rear
Speech control for navigation and telephone
Mobile phone preparation integrated in J794
VDA interface for Aftersales mobile phone retrofit
(available in Germany to key accounts only)
TV tuner, hybrid or analogue (depending on market)
Bluetooth car phone integrated in J794
Digital satellite radio (SDARS for North America only)
10 loudspeakers driven through a six-channel amplifier integrated in radio R
14 loudspeakers with a 10-channel amplifier connected to the MOST data bus
Audi music interface integrated in J794
Amplifier in radio R
Bluetooth handset
DAB dual tuner (dynamic station list)
integrated in radio R
integrated in radio R
Audi sound system
Bang & Olufsen sound system
The Audi Sound System and the Bang & Olufsen
Sound System are optional.
Reference
For further information about the design and function of the radios, please refer to SSP 392 - Audi A5 and SSP 435 MMI Navigation plus.
47
Infotainment

Overview - sound systems

Depending on system, up to 14 loudspeakers can be installed. The associated amplifier can be either an independent control unit or integrated in the radio.
R22 Treble loudspeaker,
front right
R104 Mid-range loudspeaker,
front right (with B&O)
R74 Internal microphone
R22 Treble loudspeaker,
front right (with B&O only)
R102 Mid-range/bass
loudspeaker, front right
R23 Bass loudspeaker,
front right (with B&O)
R158 Mid-range/treble loudspeaker,
centre (centre loudspeaker) (not available with basic sound system)
R20 Treble loudspeaker,
front left
R103 Mid-range loudspeaker,
front left (with B&O)
R22 Treble loudspeaker,
front left (with B&O only)
R101 Mid-range/bass loudspeaker,
front left
R21 Bass loudspeaker,
front left (with B&O)
R14 Treble loudspeaker,
rear left
R159 Mid-range/bass loudspeaker,
rear left
48
R16 Treble loudspeaker,
rear right
R160 Mid-range/bass loudspeaker,
rear right
R106 Mid-range loudspeaker,
rear right (surround) (with B&O only)
J525 Digital sound package control unit
(only available with B&O and infotainment CAN with Audi Sound System)
R105 Mid-range loudspeaker,
rear left (surround) (with B&O only)
R157 Subwoofer
(not available with basic sound system)
433_050
49
Infotainment

Sound systems

Overview
Basic sound system Audi Sound System Bang & Olufsen
chorus radio Amplifier
concert and symphony radios
integrated in radio R
2 x 20 watts for
4 front loudspeakers
also available depending
on country:
40 x 20 watts for
4 x 2 loudspeakers,
front and rear
4 x 20-watts amplifier
integrated in radio
4 x 2 loudspeakers,
front and rear
180 watts six-channel amplifier
in luggage compartment,
rear left
4 x 2 loudspeakers,
front and rear
1 centre loudspeaker
in the dash panel
1 subwoofer in the spare-wheel recess
Data transfer via infotainment CAN,
audio signal transfer via twisted-pair cable
Sound System
505 watts 10-channel amplifier
in the luggage compartment,
2 x 3 front loudspeakers and
rear left
2 x 2 rear loudspeakers
1 centre loudspeaker
in the dash panel and
2 surround loudspeakers
in the D posts
1 subwoofer in the
spare-wheel recess
MMI 4 x 20 watts amplifier
integrated in radio
4 x 2 loudspeakers,
front and rear
180 watts six-channel amplifier
integrated in radio R
4 x 2 loudspeakers,
front and rear
1 centre loudspeaker
in the dash panel
1 subwoofer in the spare-wheel recess
505 watts 10-channel amplifier
in the luggage compartment,
rear left
2 x 3 front loudspeakers
2 x 2 rear loudspeakers
1 centre loudspeaker
in the dash panel and
2 surround loudspeakers
in the D posts
1 subwoofer in the
spare-wheel recess
Data and audio signal
transfer via optical
MOST bus
50

Aerial diagnostics

All radio aerials in the Audi Q5 have full self-diagnostic capability. Now open circuits in the aerial system can not only be detected between the tuner and the amplifier. In fact, the new method enables the aerial system to be tested through the amplifier up to the aerial. This has the advantage that a fault is stored in the fault memory if, for example, the connection to the rear window is broken. This means that there is no need for a laborious analysis of reception strength in order to trace a customer complaint.
Schematic diagram
Aerial (AM/FM1)
Radio
R11
Open circuit
FM2
Aerial amplifier
R112
FM1/AM
If the above mentioned fault has occurred, the following fault memory entry is made: Connection between impedance converter and window aerial: open circuit
R
433_099
51
Infotainment

Aerial system

The aerials on the Audi Q5 are distributed among the rear window, the rear spoiler, the rear left side window and the roof aerial. The amplifiers for the aerials in the rear window and in the roof spoiler are installed on the tailgate.
Aerials
Spoiler
Rear window
SDARS
Navigation
R112
R216
Telephone
R216
433_097b
Telephone
Navigation
TV
433_097c
AM/FM1
R178 R179
Central locking FM2 TV2 TV3
52
G304R24 R113
433_097a
The DAB amplifier (left aerial module R108) is located on the D post on the left. The mobile telephone amplifier R86 is installed behind the right luggage compartment trim in the side panel.
R108
DAB
Legend
G304 Glass breakage sensor, rear window
R24 Aerial amplifier
R216 Roof aerial
R108 Left aerial module
R112 Aerial amplifier 3
R113 Aerial amplifier 4
R178 Frequency filter for frequency modulation (FM) in the negative lead
R179 Frequency filter for frequency modulation (FM) in the positive lead
433_097d
53

Air conditioning

Air conditioning system

The Audi Q5 is equipped as standard with an auto­matic air conditioning system with ram pressure control, manual air recycle mode, sun position dependent control and key identification. A three-zone deluxe automatic air conditioning system is optional.
Refrigerant system Q5
Liquid tank with drier canister
This system allows the temperature to be set
separately for the driver, front passenger and rear
zones. It also provides the following additional
comfort functions for the customer:
– Indirect ventilation
– Automatic air recirculation control
– Moisture sensors
Air intake box
Air conditioner
Condenser
Refrigerant pressure and temperature sender G395
The Audi Q5 uses an adapted version of the refriger­ant system in the Audi A4/A5. The internal heat exchanger, which is designed as a coaxial low and high pressure line, increases the efficiency of the thermodynamic circulation process, i.e. the air conditioning system. The lines can be disconnected at the quick release couplings using release tool T40149.
Evaporator
Expansion valve
Refrigerant line with internal heat exchanger
Service connections
Quick release couplings
Compressor
By using a thermally controlled expansion valve, it is
possible to install a smaller compressor with equal
refrigeration capacity.
Like the system in the Audi A4/A5, the air condi-
tioner is divided into two modules: the air intake box
and the air conditioner with air distributor housing.
433_084
54
Electrical connection of the automatic air conditioning system
The electronic components are networked using the same configuration as in the Audi A4 ‘08 and A5 models. Data from various senders and sensors is read in locally by the onboard power supply control unit J519 or by the convenience system central con­trol unit J393, and made available to the Climatronic control unit J255 via the convenience CAN data bus.
Ambient
temperature
sensor
G17
Onboard power supply
Air conditioning
system compressor
regulating valve
control unit
J519
N280
Convenience CAN
Convertible top operation
control unit
J255
The servomotors of the individual flap drives are
identical in design, and therefore can be fitted
to any flap. They are connected in series and
controlled by way of a separate LIN bus.
The servomotors for the individual flaps are
addressed in the basic setting mode of the VAS
diagnostic tester.
Seat and steering
column adjustment
control unit with
memory
J136*
bus
Convenience system
central control unit
J393
LIN busLIN busLIN bus
Data bus
diagnostic
interface
J533
Diagnostic
port
Additional heater
control unit
J364
Dash panel insert/ running gear CAN
2
Refrigerant
pressure/
temperature sender
G395
Front left seat
ventilation control
unit
J800*
Air quality
sensor
G238
Front right seat
ventilation control
unit
J799*
1
Fresh air blower
control unit
J126
* varies depending on vehicle specification
only available in combination with the three-zone deluxe
1
automatic air conditioning system
2
Optional equipment
3
The number and layout of the servomotors between the deluxe automatic air conditioning system and the three-zone deluxe automatic air conditioning system varies
Visualisation of air conditioning settings
As with the Audi A4 ‘08 and A5, the Climatronic control unit J255 does not have a Set-up button. The automatic air conditioning system set-up function is integrated in the radio or MMI system. After pressing the "CAR" function button and subsequently the "A/C" control button, the Set-up functions are available. Adjustments to air conditioning settings - e.g. blower level, air distribution or temperature - are displayed to the customer as a pop-up window. The originally selected screen remains open in the background and the adjusted air conditioning setting is displayed in the fore-ground at the side of the screen. Display duration can be adjusted using the diagnostic tester.
Sliding sunroof
Flap control
motors
Humidity sender
3 2
G355
1
control unit
J245
433_054
Visualisation of air conditioning settings by means
of pop-up windows will also be implemented on
the Audi A4 and A5 from model year 2009 onwards.
433_079
55
Air conditioning

Heated cupholder Z105

The cupholder Z105 is heatable and coolable. It is installed in the centre console between the MMI control panel and the armrest. The Peltier effect is used to control the temperature of the cupholder. Peltier elements consist of a multiple identical, square-shaped p-n type semi­conductor junctions connected in series. This plate-shaped Peltier configuration is sand­wiched on both sides, electrically and mechanically, by ceramic plates. When a direct current is applied, one side of the plate heats up while the other side cools down. The heating and cooling sides are inverted by reversing the direction of the electrical current.
"Cooling" button with blue function LED
Cupholder Z105
The direction of the electrical current can be
reversed by using two buttons, which are posi-
tioned directly in front of the heated cupholder
Z105.
For better cooling, the heat on the heated side of
the Peltier element is dissipated by means of a fan.
For this purpose, air is induced on the driver's side
of the centre console, passed through the cooling
element of the cupholder Z105 and vented on the
front passenger side.
The heatable and coolable cupholder Z105 has a
maximum current draw of 3.5 A with a rated power
output of approx. 40 W.
"Heating" button with red function LED
Residual heat indicator lamp
Direction
of travel
Standard cupholder, right
56
433_092
Cooling air outlet
Sectional view of heated cupholder Z105
left-hand side Heated cupholder Z105
Insulation
right-hand side Standard cupholder
Cupholder housing
Air outletAir intake
433_082
Aluminium liner
Cooling element
Integration in the vehicle electrical system
Heating button Cooling button
Legend
J393 Convenience system
central control unit
J519 Onboard power supply
control unit
Z105 Heatable
cupholder
J807 Power socket relay
Button signal
Function LED
FanPeltier element
Blue function LEDRed function LED
Function LED
Button signal
to 12 volt sockets
The heatable cupholder Z105 and the accompanying buttons are discretely wired. They are activated via the power socket relay J807.
to other control units
Note
In case of repair, the heatable cupholder Z105 can only be replaced as a complete unit.
433_094
57
Air conditioning

Pre-heater

The pre-heater in the Audi Q5 serves primarily to heat the vehicle interior of the vehicle and defrost the windows. For this purpose, vehicles are equipped with a pre-heater and a heater coolant shut-off valve N279. In pre-heating mode, the valve creates a small water circuit in which water circulates between only the pre-heater and the heat exchanger in the vehicle interior.
Assembly Heater
A revised solenoid valve with only 3 terminals is used
on the Audi Q5.
The additional heater control unit J364 activates the
heater coolant shut-off valve N279 until the coolant
in the pre-heater reaches the preset temperature or
until the engine is running at a speed of greater than
1200 rpm.
When deenergised, the heater coolant shut-off valve
N279 is open and coolant flows through the large
circuit.
Fuel extraction point for pre-heater
Recirculation pump V55
Exhaust pipe
Heater coolant shut-off valve N279
The pre-heater is optional with both petrol and diesel vehicles. All diesel Audi Q5 models are currently supplied with an electric supplementary
Metering pump V54
air heater Z35, even if these vehicles are ordered
with a pre-heater. At present the pre-heater is not
used as a supplementary heater on the Audi Q5.
58
Heater coolant shut-off valve N279
A modified heater coolant shut-off valve N279 is used on the Audi Q5. The new shut-off valve N279 has only 3 outlets. When servicing is necessary, the same procedure applies to both shut-off valves.
433_089
Audi A4/A5
Audi Q5
to engine
from heat exchanger
433_090
to pre-heater
Note
The pre-heater can be operated as an auxiliary fan. The selected temperature setting on the Climatronic control unit J255 and the actual temperature inside the vehicle decide whether the pre-heater or the auxiliary fan is operated.
Exploded view drawing of the pre-heater
The Eberspächer system operates according to the evaporator principle.
433_085
2
1
01 Combustion blower V6 02 Engine 03 Fuel line 04 Heater glow plug Q9 05 Additional heater control unit J364 06 Temperature sensor -2- G587 07 Temperature sensor G18
4
08 Heat exchanger 09 Water jacket 10 Combustion chamber 11 Burner element
Combustion air inlet Exhaust outlet
3
5
6
7
8
9
1011
433_096
59

Service

The Advanced Maintenance Concept

The Advanced Maintenance Concept differentiates between three independent service events. A distinction is made between a flexible service event, a mileage dependent service event and a time dependent service event.
Previously, mileage and time dependent service events were linked to the oil change, whose interval is flexible.
Under the Advanced Maintenance Concept, the customer is not only reminded of the flexible service event - the oil change - by the Service Interval Display but also of upcoming mileage and time dependent service events. As usual, this is indicated to the customer via the dash panel insert.
Service interval
Additional information can be obtained via the "Car"
menu in the MMI or via the radio display.
The Advanced Maintenance Concept is used on the
following models:
– A3 from model year 2008 onwards
– TT from model year 2008 onwards
– A4 from model year 2008 onwards
– A5
– Q5
– A6 from week 46/08 onwards
– Q7 from week 46/08 onwards
– R8 from model year 2009 onwards
Flexible service event (oil change)
Vehicle wallet
Next oil change
in 24100 km / 503 days
Next inspection
in 26900 km / 868 days
12:00
Mileage dependent service events
Since mileage and time dependent service events are now also indicated, process reliability is higher. The prerequisite for this is that the Service Interval Display is reset correctly.
Only two lines are provided on the display for the three independent service events.
Time dependent service events
Air conditioning
433_088
Reference
For further information about the Advanced Maintenance Concept, please refer to SSP 438 Audi - The Advanced Maintenance Concept.
60
Maintenance Chart
Audi Q5
2.0l TFSI 155 kW
Motor oil change flexible, 15,000–30,000 km/2 years
Inspection 30,000 km/3, 5, 7, … years
Pollen filter 30,000 km/2 years
Air filter 90000 km 60,000 km
Spark plugs 90000 km
fuel filter lifetime 60,000 km
Timing belt Chain, lifetime 180,000 km Chain, lifetime
Brake fluid first change after 3 years (depending on market), thereafter every 2 years
(in accordance with the regular main inspection and emission test cycles)
Audi Q5
3.2l FSI 199 kW
Audi Q5
2.0l TDI 125 kW
Audi Q5
3.0l TDI 176 kW
Note
As a rule, the information given in the current service literature applies.
Brake fluid
As the Maintenance Chart indicates, the brake fluid change interval has been extended. The first brake fluid change is now due after three years, and thereafter every two years in conjunction with the main inspection and exhaust emission test. In some markets, the extended oil change intervals already apply to all Audi models from model year ‘07 onwards, i.e. in conjunction with the market launch of the TT and Q7. The combined main inspection/emission test inter­val applies only to Germany.
Oil change
The oil change now involves less work because, unlike previously, the oil can be extracted from all engine types. It is, therefore, not necessary to remove the sound­proofing. The soundproofing now only needs to be removed every 60,000 km in order to check the drive shafts, for example.
Adherence to maintenance intervals
The current maintenance intervals are based on extensive series of tests and are designed to fully utilise the lubricity of the engine oil over the specified cycle.
The defined oil tolerance limits will be exceeded if the maintenance intervals are not adhered to. Over-ageing of the engine oil - caused by residues from the combustion process in the engine - can impair lubricity. This can lead to increased wear of engine parts dependent on lubrication (cylinder liners, piston rings, camshafts, tappets, chain drives etc.).
The Mobility Guarantee does not cover engine damage caused in this way. The Mobility Guarantee cannot be claimed if, for example, the specified maintenance intervals are exceeded.
61
Service
Service Key
Since the introduction of the new key concept (Audi A5, A4 ‘08, and the Audi Q5), the ignition key supports a new function - the Service Key.
A rewritable memory chip is integrated in the key and, current vehicle information is written to this chip at certain intervals.
This information can be read out using a special reader, which is connected to the workshop computer via the USB port. The exported data can be displayed on the screen and transferred to the various service systems by means of software. The Service Key therefore helps the service consultant to comply with Service Core Processes, since it eliminates the laborious manual entry of data.
In the first phase of implementation, data can only be written to the key in the vehicle. Data is written to the key once a day at the start of the first trip. Data is also saved to the transponder at a difference of 20 km to the last recorded mileage and when a new warning message is indicated. A speed threshold of 20 kph and a time threshold of 40 seconds, which must be exceeded, applies to all three storage conditions.
When using the Service Key, the vehicle data from the last key to be read out remains available until a new key is read out or the Service Key program is restarted.
For this reason, please always make sure that you have read out the correct key before using the Service Key functions in the service systems as otherwise you may not be using the correct vehicle data.
Stored information
The following vehicle information is stored in the Service Key:
– date and time of last update – vehicle mileage at time of last update – current information on the service interval – the transponder ID
Reference
For further information on the Service Key, please refer to SSP 393 - Audi A5 – Convenience Electronics and Driver Assist Systems.
62
433_086
Order acceptance
The service consultant reads the vehicle data out of the Service Key at the dealership and transfers it to the ELSA electronic service information system. The service consultant recommends necessary service work to the customer based on this data. After the consultation the customer decides what service work he/she wants done. The Maintenance Chart in ELSA provides the basis for this. The ELSA forecast indicates which service work is due next. Bringing forward service events is only recommended if the next service event is due in less than 5,000 km.
Maintenance checklist
Order number Model License plate Date of initial registration
9000016857 8K20QC 2007-06
VIN Engine code Mileage (km) Service consultant
27235CAGAWAUZZZ8K78A000636
Model designation Gearbox code Model year Date
A4 saloon TDI2.0 R4105 JJG 2008 2008-6-30
LongLife Service (with oil change)
Electrical system
Check the lighting via the driver information system, and also check the signal horn and license plate light.
LongLife Service (with oil change): Reset
Mileage dependent Audi inspection: ALL due additional work
is performed. Yes/No Due at mileage 60000
Time dependent Audi inspection: Enter actual date / due-on date.
Dust-pollen filter/odour-emissions filter: Replace
The Maintenance Chart is printed by the service consultant and the represents the work order for the mechanic. The item "Reset service display" will be deleted when the Advanced Maintenance Concept is incorporated into the Maintenance Chart.Up to three lines, which must be filled in by the service consultant, are now displayed for this purpose. This space is used for specifying which data must be entered into the adaptation channels of the Service Interval Display by the mechanic.
The three lines of text correspond to the texts which are displayed to the mechanic in "Guided Fault Finding" mode or in "Guided Functions" mode.
OK/
done
NOK rectified
433_195
63
Service
Resetting the Service Interval Display
The Service Interval Display can be reset in the "Guided Fault Finding" mode or "Guided Functions" mode of the diagnostic tester.
The mechanic is guided through the program by the diagnostic tester. The data which must be entered into the Maintenance Chart by the service consultant is essential.
Guided Functions
Functions
Select vehicle system or function
Service work
A - Battery, test (Rep. Gr. 27) OE - R89/J401 Disable/enable eject button (Rep. Gr. 91) 17 - Inspection Service every 30,000 km 17 - LongLife Service (with oil change) 17 - Oil Change Service 17 - Handover Service 17 - Flexible Oil Change Service (Long Life) 17 - LongLife Service every 30,000 km (without oil change) 17 - Activate/deactivate Transport Mode (Rep, Gr. 90) 37 - Disable/enable eject button (Rep. Gr. 91) 37 - Navigation, disable/enable eject button
The information as to which service work is to be performed, e.g. the LongLife Service (with oil change) or the inspection Service every 30,000 km etc., is displayed as a heading in the relevant Maintenance Chart on page 1, directly below the vehicle data.
A further requirement for correctly setting the Service Interval Display is that the correct date is indicated on the diagnostic tester's user interface.
AUDI Audi Q5 2009 (9) CAGA 2.0 TDI/105 kW
Operating mode Skip
433_087
Date and time display
Note
A distinction is now made between the following types of service work:
– LongLife Service (with oil change) – Flexible Oil Change Service (LongLife) – LongLife Service every 30,000 km (without oil change) – Inspection every 30,000 km – Oil Change Service
64
Service Plan
The Service Plan has been redesigned and adapted to meet current requirements. It basically serves only as a record of work done.
The Maintenance Chart in ELSA should be used as a guide to determine which work is needed, whether service events should be combined and how the Service Interval Display should be set.
Audi LongLife Service
Oil change
Inspection
Audi Inspection Service
Oil change
Inspection
The "Audi Inspection Service" boxes should only be filled in when the vehicle is configured for or converted to fixed maintenance intervals.
Service recordsService records
Audi LongLife Service
Oil change
Inspection
Audi Inspection Service
Oil change
Inspection
Additional work
Brake fluid Air filter
Spark plugs Fuel filter
Dust and pollen filter Haldex: Oil
Multitronic: Oil S tronic: Oil and filter
Timing belt
Mileage Invoice number
Mobility Guarantee until:
Service display
max. km …………
Date and stamp of Audi dealership
Additional work
Brake fluid Air filter
Spark plugs Fuel filter
Dust and pollen filter Haldex: Oil
Multitronic: Oil S tronic: Oil and filter
Timing belt
Mileage Invoice number
Mobility Guarantee until:
Service display
max. km …………
Date and stamp of Audi dealership
65
Service

New workshop equipment for body repairs

VAS 6525
433_179
VAS 6545 VAS 6239A
433_181
VAS 6535
433_180
433_182
VAS 6530 Straightening bracket sets:
66
433_183
Basic set: VAS 6442 (Audi A4/A5) Extension set: VAS 6442/1 (Audi Q5) Straightening bracket for side gantry gauge: VAS 5007/41 (Audi Q5)
433_174

Self-Study Programmes about the Audi Q5

The following Self-Study Programmes relevant to SSP 433 Audi Q5 have been prepared:
– SSP 434 The Audi Headlight Assist System – SSP 429 Audi Q5 Engines and Transmissions – SSP 438 Audi - The Advanced Maintenance Concept
SSP 434 The Audi Headlight Assist System
– Mode of operation of the Headlight Assist System – The operating logic of the Headlight Assist System – Displays in the dash panel insert – Components of the Headlight Assist System
Order number: A07.5S00.50.20
433_190
SSP 429 Audi Q5 Engines and Transmissions
– Engine/oil pump/EGR cooler – Power transmission – OB2 gearbox – OB5 gearbox
Order number: A08.5S00.55.20
SSP 438 Audi - The Advanced Maintenance Concept
– The Advanced Maintenance Concept – Adherence to maintenance intervals – Resetting the Service Interval Display – Order acceptance
Order number: A08.5S00.54.20
433_191
433_192
67
Vorsprung durch Technik
www.audi.co.uk
433
All rights reserved. Technical specifications subject to change without notice.
Copyright AUDI AG I/VK-35 Service.training@audi.de Fax +49-841/89-36367
AUDI AG D-85045 Ingolstadt Technical status: 07/08
Printed in Germany A08.5S00.49.20
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