A4 Mk3: Running gear
Also for this vehicle: A4 Cabriolet L4-1.8L Turbo (AMB) (2005), A4 Cabriolet L4-2.0L Turbo (BWT) (2007), A4 Cabriolet Mk2, A4 Cabriolet V6-3.0L (AVK) (2003), A4 Mk1, A4 Mk2, A4 Quattro Cabriolet L4-2.0L Turbo (BWT) (2009), A4 Quattro Cabriolet V6-3.0L (BGN) (2005), A4 Quattro Cabriolet V6-3.2L (BKH) (2007), A4 Quattro Sedan L4-1.8L Turbo (AEB) (1998), A4 Quattro Sedan L4-1.8L Turbo (ATW) (2000), A4 Quattro Sedan L4-1.8L Turbo (AWM) (2001), A4 Quattro Sedan L4-2.0L Turbo (BPG) (2005), A4 Quattro Sedan L4-2.0L Turbo (CAEB) (2009), A4 Quattro Sedan V6-2.8L (ACK) (1997), A4 Quattro Sedan V6-3.0L (AVK) (2002), A4 Quattro Sedan V6-3.2L (BKH) (2005), A4 Quattro Wagon (8K5) L4-2.0L Turbo (CAEB) (2011), A4 Quattro Wagon L4-1.8L Turbo (AEB) (1999), A4 Quattro Wagon L4-1.8L Turbo (ATW) (2000), A4 Quattro Wagon L4-1.8L Turbo (AWM) (2001), A4 Quattro Wagon L4-2.0L Turbo (BPG) (2005), A4 Quattro Wagon L4-2.0L Turbo (CAEB) (2009), A4 Quattro Wagon V6-2.8L (AHA) (1998), A4 Quattro Wagon V6-3.0L (AVK) (2002), A4 Quattro Wagon V6-3.2L (BKH) (2005), A4 Sedan L4-1.8L Turbo (AEB) (1997), A4 Sedan L4-1.8L Turbo (ATW) (2000), A4 Sedan L4-1.8L Turbo (AWM) (2001), A4 Sedan L4-2.0L Turbo (BPG) (2005), A4 Sedan V6-2.8L (AFC) (1996), A4 Sedan V6-2.8L (AHA) (1998), A4 Sedan V6-3.0L (AVK) (2002), A4 Sedan V6-3.2L (BKH) (2007), A4 V6-3.0L (AVK) (2004).
Steering & suspension
Body & interior
Engine
Transmission
General
Heating & A/C
Choose Sections to see everything in a chapter, or a chapter title to start at its first page.
Brake system91 pages
Technical data8 pages
ABS, ADR, TCS, EDL, ESP16 pages
- General information on the anti-lock brake system
- Connecting VAS 5051B/ 5052 and selecting functions
- ABS/ESP Bosch 8.1 - overview
Hydraulic unit -N55- with ABS control unit -J104- - overview3 pages
Speed sensors of ABS/ESP system - overview3 pages
Brake, brake mechanics31 pages
Front brakes FN-3 - exploded view7 pages
- Removing and installing front brake caliper with brake carrier - FN-3 brakes
- Renewing front brake caliper - FN-3 brakes
- Removing and installing front brake pads - FN-3 brakes
- Removing and installing front brake disc - FN-3 brakes
- Renewing front brake disc - FN-3 brakes
- Removing and installing front splash plate - FN-3 brakes
Front brakes FBC-57 - exploded view7 pages
- Removing and installing front brake caliper with brake carrier - FBC-57 brakes
- Renewing front brake caliper - FBC-57 brakes
- Removing and installing front brake pads - FBC-57 brakes
- Removing and installing front brake disc - FBC-57 brakes
- Renewing front brake disc - FBC-57 brakes
- Removing and installing front splash plate - FBC-57 brakes
Rear brakes with electronic parking brake - exploded view7 pages
Brake pedal and mounting bracket - exploded view7 pages
- Separating and connecting brake pedal and brake servo
- Removing and installing brake pedal (vehicles with manual gearbox)
- Removing and installing brake pedal (vehicles with automatic gearbox)
- Removing and installing mounting for brake servo push rod
- Removing and installing mounting bracket (vehicles with manual gearbox)
- Removing and installing mounting bracket (vehicles with automatic gearbox)
Electronic parking brake (EPB) - overview3 pages
Brakes, hydraulics, regulator, servo36 pages
Servicing brake caliper - FN-3 brakes3 pages
Servicing brake caliper - FBC brakes3 pages
Servicing rear caliper for electronic parking brake (EPB)3 pages
Brake servo/ brake master cylinder - exploded view5 pages
Vacuum pumps for brake servo7 pages
- Vacuum pump - exploded view
- Removing and installing vacuum pump (2.7 ltr. TDI and 3.0 ltr. TDI diesel engine)
- Removing and installing vacuum pump (2.0 ltr. TDI diesel engine)
- Removing and installing vacuum pump (4-cyl. turbo FSI engine)
- Removing and installing vacuum pump (V6 FSI)
- Removing and installing vacuum pump (V6 TFSI engine)
Running gear, front-wheel drive and four-wheel drive222 pages
Technical data12 pages
Proper disposal procedures for oil-filled and gas-filled components4 pages
Front suspension, drive shafts50 pages
Subframe, cross brace, anti-roll bar, coupling rod, subframe shield7 pages
Electronic damping control6 pages
- Exploded view of electronic damping control
- Removing and installing electronically controlled damping control unitJ250
- Re-adapting reference position with vehicle diagnosis, testing and information systemVAS 5051B
- Removing and installing front left body acceleration senderG341 and front right body acceleration sender G342
- Removing and installing rear body acceleration senderG343
Suspension strut with mounting bracket, shock absorber fork, upper links, body brace8 pages
- Exploded view of suspension strut with mounting bracket, shock absorber fork, upper links, body brace
- Removing and installing suspension strut with mounting bracket
- Servicing suspension strut and mounting bracket
- Removing and installing shock absorber fork
- Removing and installing upper links
- Renewing bushes for front and rear upper links
- Removing and installing body brace
Track control link, swivel joint, guide link, vehicle level sender9 pages
- Exploded view of track control link, swivel joint, guide link, vehicle level sender
- Removing and installing track control link
- Renewing bush for track control link
- Removing and installing swivel joint
- Removing and installing guide link
- Renewing conventional bonded rubber bush (65 mm ?) for guide link
- Renewing hydraulic bonded rubber bush (75 mm ?) for guide link
- Removing and installing vehicle level sender
Wheel bearing housing, wheel bearing unit5 pages
Drive shaft9 pages
- General notes:
- Slackening and tightening bolt securing drive shaft to wheel hub
- Removing and installing drive shaft
- Exploded view of drive shaft
- Dismantling and assembling peened triple roller joint AAR 2600 i or 3300 i
- Servicing outer constant velocity joint
- Checking outer constant velocity joint
- Tightening large and small clips on triple roller joint and outer joint
Rear suspension, drive shaft54 pages
Subframe, anti-roll bar, coupling rod - front-wheel drive vehicles5 pages
- Exploded view of subframe, anti-roll bar, coupling rod - front-wheel drive vehicles
- Removing and installing subframe with attachments - front-wheel drive vehicles
- Renewing conventional/hydraulic bonded rubber bushes for subframe - front-wheel drive vehicles
- Removing and installing coupling rod and anti-roll bar - front-wheel drive vehicles
Subframe, anti-roll bar, coupling rod - four-wheel drive vehicles7 pages
- Exploded view of subframe, anti-roll bar, coupling rod - four-wheel drive vehicles
- Removing and installing subframe with attachments - four-wheel drive vehicles
- Renewing conventional/hydraulic bonded rubber bushes for subframe - four-wheel drive vehicles
- Renewing front bonded rubber bush for rear final drive - four-wheel drive vehicles
- Renewing rear bonded rubber bushes for rear final drive - four-wheel drive vehicles
- Removing and installing coupling rod with anti-roll bar - four-wheel drive vehicles
Upper transverse link, track rod, coil spring, lower transverse link, vehicle level sender8 pages
- Exploded view of upper transverse link, track rod, coil spring, lower transverse link, vehicle level sender
- Removing and installing lower transverse link
- Removing and installing upper transverse link
- Removing and installing track rod
- Modifying spring compressing systemVAS 6274
- Removing and installing coil spring
- Removing and installing vehicle level sender
Wheel bearing housing, wheel bearing unit, shock absorber - front-wheel drive vehicles7 pages
- Exploded view of wheel bearing housing, wheel bearing unit, shock absorber for coil springs - front-wheel drive vehicles
- Removing and installing wheel bearing housing - front-wheel drive vehicles
- Removing and installing wheel bearing unit - front-wheel drive vehicles
- Renewing bonded rubber bush for wheel bearing housing - front-wheel drive vehicles
- Removing and installing shock absorber - front-wheel drive vehicles
- Servicing shock absorber - front-wheel drive vehicles
Wheel bearing housing, wheel bearing unit, shock absorber - four-wheel drive vehicles8 pages
- Exploded view of wheel bearing housing, wheel bearing unit, shock absorber for coil springs - four-wheel drive vehicles
- Removing and installing wheel bearing housing - four-wheel drive vehicles
- Removing and installing wheel bearing unit - four-wheel drive vehicles
- Servicing wheel bearing unit - four-wheel drive vehicles
- Renewing bonded rubber bush for wheel bearing housing - four-wheel drive vehicles
- Removing and installing shock absorber - four-wheel drive vehicles
- Servicing shock absorber - four-wheel drive vehicles
Drive shaft13 pages
- General notes:
- Slackening and tightening bolt securing drive shaft to wheel hub
- Removing and installing drive shaft
- Exploded view of drive shaft with 88 mm dia. outer constant velocity joint and 100 mm dia. inner sliding constant velocity joint
- Exploded view of drive shaft with 100 mm dia. outer constant velocity joint and 108 mm dia. inner sliding constant velocity join
- Exploded view of drive shaft with 88/98 mm dia. outer sliding constant velocity joint and 100/108 mm dia. inner sliding constant
- Renewing outer constant velocity joint (88 mm or 100 mm dia.)
- Renewing inner sliding constant velocity joint (100 mm or 108 mm dia.)
- Servicing outer sliding constant velocity joint (88 mm or 98 mm dia.)
- Servicing inner sliding constant velocity joint with cap (100 mm or 108 mm dia.)
- Checking outer constant velocity joint
- Checking inner sliding CV joint
Wheels, tyres. axle align42 pages
- Wheels and tyres
Tyre pressure monitoring system (TPM)8 pages
Wheel alignment15 pages
- General notes
- Wheel alignment must be checked:
- Explanatory notes on production control numbers (PR Nos.)
- Wheel alignment specifications
- Test requirements:
- Preparations for measurement
- Sequence of operations for checking and adjusting wheel alignment
- Checking centre position of steering rack (mechanical method)
- Wheel runout compensation
- Checking full steering lock
- Checking camber at front wheels and centralising if necessary
- Adjusting camber at rear wheels
- Adjusting toe setting at rear wheels
- Adjusting toe setting at front wheels
Adaptive Cruise Control (ACC)7 pages
- General information on ACC
- Exploded view of sensor for adaptive cruise controlG550
- Removing and installing sensor for adaptive cruise controlG550
- Preparing ACC setting deviceVAS 6190 for adjustment procedure
- Adjustment procedure using ACC setting deviceVAS 6190
- Adjustment procedure using ACC setting deviceVAS 6430
Lane departure warning (Audi lane assist)4 pages
Steering64 pages
Airbag steering wheel3 pages
Steering column8 pages
- Exploded view of steering column
- Removing and installing intermediate steering shaft
- Removing and installing steering column
- Handling and transporting steering column
- Checking steering column for damage
- Removing and installing electronic steering column lock control unitJ764
- Removing and installing safety lock for active steering (locking solenoid)
Power steering box10 pages
- Exploded view of power steering box
- Removing and installing power steering box (LHD vehicles)
- Centralising steering
- Servicing power steering box
- Removing and installing servotronic solenoid valveN119
- Adjusting power steering box
- Removing and installing track rod ball joint
- Removing and installing track rods
- Removing and installing rubber boot
Checking fluid level, bleeding steering system and checking for leaks4 pages
Power steering pump, hydraulic pipes and hoses, fluid reservoir (vehicles with 4-cylinder diesel engine)7 pages
- Exploded view (vehicles with 4-cylinder diesel engine, vehicles with dynamic steering)
- Exploded view (vehicles with 4-cylinder diesel engine, vehicles without dynamic steering)
- Exploded view of pipes and hoses (vehicles with 4-cylinder diesel engine, vehicles with and without dynamic steering)
- Checking delivery pressure of power steering pump (vehicles with 4-cylinder diesel engine, vehicles with and without dynamic ste
- Removing and installing power steering pump (vehicles with 4-cylinder diesel engine, vehicles with dynamic steering)
- Removing and installing power steering pump (vehicles with 4-cylinder diesel engine, vehicles without dynamic steering)
Power steering pump, hydraulic pipes and hoses, fluid reservoir (vehicles with 4-cylinder TFSI engine)7 pages
- Exploded view (vehicles with 4-cylinder TFSI engine, vehicles with dynamic steering)
- Exploded view (vehicles with 4-cylinder TFSI engine, vehicles without dynamic steering)
- Exploded view of pipes and hoses (vehicles with 4-cylinder TFSI engine, vehicles with and without dynamic steering)
- Checking delivery pressure of power steering pump (vehicles with 4-cylinder TFSI engine, vehicles with and without dynamic steer
- Removing and installing power steering pump (vehicles with 4-cylinder TFSI engine, vehicles with dynamic steering)
- Removing and installing power steering pump (vehicles with 4-cylinder TFSI engine, vehicles without dynamic steering)
Power steering pump, hydraulic pipes and hoses, fluid reservoir (vehicles with 6-cylinder diesel engine)7 pages
- Exploded view (vehicles with 6-cylinder diesel engine, vehicles with dynamic steering)
- Exploded view (vehicles with 6-cylinder diesel engine, vehicles without dynamic steering)
- Exploded view of pipes and hoses (vehicles with 6-cylinder diesel engine, vehicles with and without dynamic steering)
- Checking delivery pressure of power steering pump (vehicles with 6-cylinder diesel engine, vehicles with and without dynamic ste
- Removing and installing power steering pump (vehicles with 6-cylinder diesel engine, vehicles with dynamic steering)
- Removing and installing power steering pump (vehicles with 6-cylinder diesel engine, vehicles without dynamic steering)
Power steering pump, hydraulic pipes and hoses, fluid reservoir (vehicles with 6-cylinder FSI engine)7 pages
- Exploded view (vehicles with 6-cylinder FSI engine, vehicles with dynamic steering)
- Exploded view (vehicles with 6-cylinder FSI engine, vehicles without dynamic steering)
- Exploded view of pipes and hoses (vehicles with 6-cylinder FSI engine, vehicles with and without dynamic steering)
- Checking delivery pressure of power steering pump (vehicles with 6-cylinder FSI engine, vehicles with and without dynamic steeri
- Removing and installing power steering pump (vehicles with 6-cylinder FSI engine, vehicles with dynamic steering)
- Removing and installing power steering pump (vehicles with 6-cylinder FSI engine, vehicles without dynamic steering)
Power steering pump, hydraulic pipes and hoses, fluid reservoir (vehicles with 6-cylinder TFSI engine)7 pages
- Exploded view (vehicles with 6-cylinder TFSI engine, vehicles with dynamic steering)
- Exploded view (vehicles with 6-cylinder TFSI engine, vehicles without dynamic steering)
- Exploded view of pipes and hoses (vehicles with 6-cylinder TFSI engine, vehicles with and without dynamic steering)
- Checking delivery pressure of power steering pump (vehicles with 6-cylinder TFSI engine, vehicles with and without dynamic steer
- Removing and installing power steering pump (vehicles with 6-cylinder TFSI engine, vehicles with dynamic steering)
- Removing and installing power steering pump (vehicles with 6-cylinder TFSI engine, vehicles without dynamic steering)
Removing and installing hydraulic fluid cooler2 pages
Installation position of hoses2 pages
Wheels and tyres › Wheels, tyres. axle align143 pages
- General information on wheels and tyres (passenger cars)
Legal and technical requirements for retrofitting different wheel/tyre combinations3 pages
- Reduced rolling resistance tyres
- Additional wheel housing extensions (flaps)
- Rims with bonded wheel trim
Rims with exchangeable trim elements (bonded)3 pages
- Rims with exchangeable trim elements (bolted)
- Split rim composite wheels
Design of wheels (rims)5 pages
- Tightening torques for wheel bolts
Fitting wheels / tyres / tyre pressure monitor16 pages
- General information on wheels and tyres
- Exploded view of components for light alloy wheels
- Exploded view of components for PAX run-flat tyres
- Instructions for changing/fitting wheels
- Removing and fitting run-flat tyres
- Safety notes for run-flat tyres
- Conditions for fitting run-flat tyres
- Unseating run-flat tyres
- Removing run-flat tyres
- Fitting run-flat tyres
- Exploded view of tyre pressure monitor
- Changing a tyre
- Removing and installing metal valve body
- Wheel electronics (TPM) - Beru system
- Wheel electronics (TPM) - Siemens system
- Repairing slight damage on rims
Tyre requirements and tyre maintenance24 pages
- Introduction
- Requirements to be met by tyres
- Factors influencing the service life of a tyre
- Tyre pressure (maintenance)
- Driving style
- Measuring tread depth
- Identification markings on the tyre sidewall
- Designations on sidewall of tyres with run-flat system (PAX)
- "80" series tyres
- Speed rating / maximum speed
- Speed symbols for tyres
- Winter tyres with speed symbol "V"
- Load rating code/load index (LI)
- Reinforced/Extra Load (XL) tyres
- Extra Load (XL) V winter tyres
- Snow chains
- The valve
- Tyre storage
- Storing the tyres
- Tyre ageing
- Renewing tyres
- Care and maintenance of alloy wheel rims
- Tyres with rim protectors
Rough running caused by wheels/tyres3 pages
Wheel balancing13 pages
- General notes
- Conducting a road test before balancing wheels
- Balancing wheels on stationary wheel balancer
- Wheels with sensitive surfaces and bonded wheel trims
- Work sequence when balancing wheels and tyres
- Finish balancer
- Vibration control systemVAS 6230 A
- Radial and lateral run-out on wheels and tyres
- Checking radial and lateral run-out of wheels and tyres on V.A.G 1435
- Checking radial and lateral run-out of wheels and tyres with wheel balancing machine centring systemVAS 5271
- Checking radial and lateral run-out on rim
- Match mounting
Tyre damage17 pages
- General notes
- Checking tyres
- Construction of belted radial tyres
- Torn tread
- Radial depressions
- Impact damage
- Cuts
- Damage caused by foreign bodies
- Loss of air from tyre
- Damage occurring when fitting tyres
- Bead damage caused by fitting machine
- Tyre pressure
- Tyre damage due to insufficient inflation pressure
- Slow loss of tyre pressure
- Temperature increase caused by insufficient inflation pressure
- Tears in tyre
Vehicles with breakdown set5 pages
Tyre pressure monitoring systems3 pages
Tyres with run-flat capability (PAX)10 pages
- Construction of tyres with run-flat capability (PAX)
- Codes and designations on tyres with run-flat capability (PAX)
- Support ring on PAX wheels
- Dimensions and designations for PAX rims
- Inflating tyres on PAX wheels
- Wheel alignment
- Repairing tyres with run-flat capability (PAX)
- PAX tyres - assessing condition
- Checking support ring
Self supporting tyres (SST) with run-flat capability4 pages
System description - steering wheel › Self diagnosis, V.A.G Inspection Service10 pages
System description - dynamic steering › Self diagnosis, V.A.G Inspection Service30 pages
General notes on dynamic steering9 pages
- Basic design
- Components used
Description of components in steering column for dynamic steering6 pages
Description of dynamic steering function21 pages
- Basic function
Functions of the active steering control unitJ7923 pages