Wheels, Tires, Wheel Alignment Audi A3 8P рестайлинг

EXPLANATIONS OF THE PRODUCTION CONTROL NUMBERS (PR NUMBER)

There is a vehicle data label in the spare wheel well and also one in the customer Maintenance booklet.

The PR number on the vehicle data label specifies the suspension version installed in the vehicle.

Scheme 1

In this example, the sport suspension UA1 is installed in the vehicle (see the magnified area of the illustration)

UA0, UA4 = Standard suspension

UA1, UA5, UA9 = Sport suspension

UA2 = Heavy duty suspension

UA3, UB3 = quattro GmbH sport suspension

UB5 = S3 sport suspension

UA6 = Sport suspension Audi magnetic ride (AMR)

UA7 = Sport suspension S3 Audi magnetic ride (AMR)

UB2 = Sport suspension RS 3

TIRE PRESSURE MONITORING SYSTEM, DIRECT SYSTEM

Observe notes about usage in your Owner's Manual.

The tire pressure monitoring system monitors the pressure of the four tires while driving.

Damaged tire pressure sensors should be replaced for safety reasons.

Do not clean tire pressure sensors with steam blasting or strong compressed air.

For safety reasons, the tire pressure monitoring sensor should be replaced and the rim cleaned after using tire sealant.

The tire pressure monitoring system consists of a control module, a central antenna integrated in the control module and one tire pressure sensor in each of the four wheels.

If wheel positions on the vehicle are changed, tires are changed, tire pressure sensors are replaced or pressures are changed, control module must be readapted.

Note. When changing a tire with tire pressure monitoring sensors (summer/winter tires), check the tire pressure and adapt the sensor to the control module.

A fault may be saved in the Diagnostic Trouble Code (DTC) memory if

There is a system malfunction.

When installing less than four wheels with tire pressure sensors.

When installing winter tires or incorrect tire pressure sensors. (If this is the case, the yellow indicator lamp in instrument cluster "system malfunction diagram" is set and cannot be deactivated by the system).

The system has detected new sensors but the tire pressure monitoring button -E226- has not been pressed yet to confirm the current pressures. (In this case, the system malfunction is erased by pressing the button.)

TIRE PRESSURE MONITORING SYSTEM USAGE, DIRECT SYSTEM

Function

The tire pressure monitoring system is actuated by using the tire pressure monitoring button -E226-.

The system monitors the tire pressure that was set for monitoring in each of the four tires.

The tire pressures must first be checked, corrected and stored using the tire pressure monitoring button.

Then check and correct the tire pressure for the tires on the vehicle (including spare tire) according to the specifications on the sticker on the fuel filler flap/B-pillar.

Tire Pressure Monitoring Active

If the TPMS detects a loss of pressure in one or more tires, it notifies the driver by switching the TPMS warning lamp in the instrument cluster on continuously. A tire pressure warning symbol with the text "Check tire pressure" also appears in the instrument cluster driver information system. In this case, the tire pressures must be checked (according to the specifications on the label on the fuel tank door/B-pillar). If the tire pressure is very different in one or more tires, check that tire for damage or foreign objects. Replace the tire if necessary. Refer to TIRES, CHANGING, WITH TIRE PRESSURE MONITORING SYSTEM .

If the cause of the tire pressure warning has been corrected: Correct and store the tire pressures using the tire pressure monitoring button.

System Malfunction in the TPMS

A system malfunction is stored in the DTC memory for the tire pressure monitoring control module -J502-. If a malfunction occurs or there is already one present, this is indicated when the ignition is switched on by the yellow indicator lamp in the instrument cluster blinking for 1 minute and then staying on. Indicator lamp cannot be turned off by pressing tire pressure monitoring button. The TPMS warning lamp in the instrument cluster comes on and "Tire Pressure System Fault" appears. If there is a Diagnostic Trouble Code (DTC) memory entry, connect vehicle diagnostic, testing and information system VAS 5051 and select "Guided Fault Finding".

Coding Tire Pressure Monitoring Control Module

If tire pressure monitoring control module is replaced, new control module must be coded. To do this, proceed as follows.

Connect VAS 5051 A perform vehicle-specific entry into Guided Fault Finding and select go to button "function/component selection".

Then

"Chassis (Repair group 01; 40 - 49)"

"Tire pressure monitoring (Repair group 01; 44)"

"01 - On Board Diagnostic (OBD) capable systems"

"65 - Tire pressure monitoring J502"

"J502 - Tire Pressure Monitoring Control Module, functions"

"65 - Replacing control module (repair group 44)"

Tire pressure saving must be initiated after every desired change to the specified pressures.

Save Tire Pressures

The correct saving of the specified values in the basic requirement for dependable tire pressure monitoring.

After each change to the tires, the tire pressure monitoring button must be pressed for approximately 5 seconds with the ignition turned on and the vehicle standing until a signal tone is heard and the yellow "system malfunction diagram" in the instrument cluster blinks several times. Blinking several times confirms the calibration procedure and the readapting of the tire pressures.

The procedure for saving the tire pressures must be initiated each time the tire specified pressures are changed. The procedure takes place while driving.

Store when Changing a Tire or Replacing a Tire Pressure Sensor

Adapting the tire pressure sensors is a basic requirement for the tire pressure monitoring system to function properly.

Each time a tire is changed or a tire pressure sensor is replaced, the tire pressure sensor must be pressed for approximately 5 seconds with the ignition turned on and vehicle standing still until a signal tone is heard and the yellow "system malfunction diagram" in the instrument cluster blinks several times.

If the tire pressure monitoring button is not pressed, the system learns the new sensors but still activates the indicator lamp to request active operation.

The vehicle must now stand for 20 minutes and then be driven on a 10-minute adaptation drive at speeds greater than 25 km/h.

If the standing time is not followed, control module is not in learning mode so system recognizes a malfunction and can only automatically learn wheel electronics after standing 20 minutes.

TIRE PRESSURE MONITORING SYSTEM, INDIRECT SYSTEM

Observe notes about usage in your Owner's Manual.

The tire pressure monitoring system (TPMS) is a software module in the ESP/ABS control module that detects slow losses of pressure in the wheels. With the help of the ABS sensors, the TPMS compares the speed and rolling circumference of the individuals wheels. The rolling circumference of a tire changes, the TPMS indicator in the instrument cluster illuminates. Rolling circumference of tire may be change if

1. The tire pressure is too low.
2. The tire has structural damage.
3. The vehicle is loaded on one side.
4. The tires on one axle are loaded more heavily (for example when towing a trailer or driving up and down inclines).
5. Snow chains are installed.
6. The spare tire is installed.
7. One wheel per axle was changed. (also if exchanging the tires from front to rear or vice versa).

System Malfunction in the TPMS

A system malfunction is stored in the DTC memory for the ABS/ESP control module and indicated by the yellow TPMS lamp in the instrument cluster. The TPMS lamp cannot be turned off by pressing the TPMS button. Proceed as follows if there is a fault stored in the DTC memory.

Connect vehicle diagnostic, testing and information system VAS 5051 and select "Guided Fault Finding".

Chassis

Brake System

01-On Board Diagnostic capable systems

03 Brake electronics ABS/ESP Mark 60 or Mark 70

J104 ABS/ASR/ESP Control Module, Functions

Check the tire pressure monitoring system.

Initial Calibration, Performing

To perform an initial calibration, press the TPMS and ESP/ASR button while the ignition is switched on and the vehicle is stopped until a signal tone is heard. No additional calibration is needed after the initial calibration.

Perform Calibration: (readapt tire pressure)

Each time a tire is changed, press and hold the TPMS button with the ignition switched on and the vehicle stopped until a signal tone is heard. The signal tone confirms the calibration procedure and the programming of the new tire pressures.

Adapt the new tire size (not applicable to ABS/ESP Mark 60 EC)

Connect VAS 5051 and select "Guided Fault Finding".

Chassis

Brake System

01-On Board Diagnostic capable systems

03- Brake electronics ABS/ESP Mark 60

J104 ABS/ASR/ESP Control Module, Functions

Adapting tire sizes

Wheel alignment must only performed using VW/Audi-approved wheel alignment equipment.

Each time wheels are aligned, both front and rear wheels must be aligned.

Otherwise, proper vehicle driveability cannot be ensured.

Note. Do not carry out axle alignment until the vehicle has been driven 1000 to 2000 km in order to allow the coil springs to settle. The individual specifications should be followed as exactly as possible when making adjustments. Vehicle instability can also be caused by the wheels having a residual imbalance and/or radial runout which is too great.

Path for ABS/ESP Mark 60

Chassis (Repair group 01; 45 - 48)

Chassis (Repair group 01; 45)

01- OBD-capable systems

03- Brake electronics ABS/ESP Mark 60

J104- ABS/ASR/ESP Control Module, Functions

G85 - Steering Angle Sensor calibration

Path for ABS Mark 70

Chassis (Repair group 01; 45 - 48)

Steering (repair group 48)

01- OBD-capable systems

44- Steering

J500 - Power steering control module, functions

G85 - Steering Angle Sensor calibration

If the installed position of the rear axle and thereby the direction of travel of the vehicle are not considered, a crooked steering wheel may result.

Steering wheel and steering column are marked.

Scheme 2

These positions must not be changed!

A - Marked line on steering wheel

B - Punch mark on steering column

Otherwise centering of toothed shaft cannot be guaranteed!

Steering columns supplied as a spare part do not have a center punch mark.

If the steering column or steering wheel is replaced, marking should be remade after alignment and road test.

Tightening Specification

An axle alignment is necessary when

1. Vehicle shows handling problems.
2. Involved in an accident.
3. Axle components were removed.
4. Tire wear patterns are uneven.

WHEELS AND TIRES

Refer to General Information .

Scheme 3

1. Tire Pressure Monitoring Control Module -J502- If the module is replaced, system must be coded. Refer to «TIRE PRESSURE MONITORING SYSTEM USAGE, DIRECT SYSTEM»(/audi/a3/8p-2004-2008/remont/suspension-front/#wheels-tires-wheel-alignment__tire-pressure-monitoring-system-usage-direct) .
2. Display in Instrument Cluster
3. Tire Pressure Monitoring Button -E226- Component location: The tire pressure monitoring button is installed in the center console.
4. Left Front Tire Pressure Monitoring Sensor -G222-, Right Front Tire Pressure Monitoring Sensor -G223-, Rear Left Tire Pressure Monitoring Sensor -G224- and Rear Right Tire Pressure Monitoring Sensor -G225- Removing and installing, refer to «TIRE PRESSURE SENSOR»(/audi/a3/8p-2004-2008/remont/suspension-front/#wheels-tires-wheel-alignment__tire-pressure-sensor) . If wheel positions on the vehicle are changed, tires are changed, tire pressure sensors are replaced or pressures are changed, control module must be re-coded or readapted. Refer to «TIRE PRESSURE MONITORING SYSTEM USAGE, DIRECT SYSTEM»(/audi/a3/8p-2004-2008/remont/suspension-front/#wheels-tires-wheel-alignment__tire-pressure-monitoring-system-usage-direct) .

Scheme 4

1. Left Front Tire Pressure Monitoring Sensor -G222-, Right Front Tire Pressure Monitoring Sensor -G223-, Rear Left Tire Pressure Monitoring Sensor -G224- and Rear Right Tire Pressure Monitoring Sensor -G225- Temperature and pressure can be read via diagnosis with Vehicle Diagnostic, Measuring and Information System VAS 5051 B Replace the valve insert each time a tire is changed. Replace the union nut, valve insert, seal, sealing washer and valve cap if installing used tire pressure sensors. Removing and installing, refer to «TIRE PRESSURE SENSOR»(/audi/a3/8p-2004-2008/remont/suspension-front/#wheels-tires-wheel-alignment__tire-pressure-sensor) .
2. Valve Core
3. Sealing Washer
4. Seal
5. Rim Tires, mounting and dismounting, refer to «TIRES, CHANGING, WITH TIRE PRESSURE MONITORING SYSTEM»(/audi/a3/8p-2004-2008/remont/suspension-front/#wheels-tires-wheel-alignment__tires-changing-with-tire-pressure-monitoring) .
6. Union Nut 8 Nm
7. Valve Cap Use only original valve caps from the repair set. Do not use Comfort valve caps and metal caps.

WHEEL ALIGNMENT TEST PREREQUISITES

1. Check the suspension, steering and steering linkage for excessive play and damage.
2. Tread depth difference may be no more than 2 mm on an axle.
3. Tires inflated to prescribed pressure
4. Drive the vehicle onto the alignment rack without tension. Move the vehicle back and forth if necessary to relieve any tension on the axle components.
5. The measurement sensor must be properly adjusted and attached to the vehicle; observe device manufacturer's operating instructions.
6. Make sure that the sliding plates and turn tables are not touching the end stop when checking the wheel alignment.
7. Perform wheel run-out compensation: Permissible axial run-out of the wheel rims can exceed the specified toe setting tolerance. If compensation for the wheel run-out is not performed, it will not be possible to obtain a correct toe-in adjustment.
8. The steering wheel must be "evened out" into the center position before beginning the measuring and adjusting. Use steering wheel scales VAS 6458 for this.
9. Vehicle accurately aligned, suspension bounced and rocked several times
10. Vehicle curb weight, refer to footnote 1

1. Curb weight means: the weight of the vehicle ready for the road (completely filled fuel tank and windshield washer fluid reservoir, spare tire, vehicle tool kit, vehicle jack)

Treat these highly sensitive units carefully and conscientiously.

1. If necessary, contact the manufacturer for familiarization with the proper use of the equipment.
2. After a certain period, wheel alignment platforms and computer equipment can lose their original leveling setting and adjustments.
3. Alignment platforms and alignment units/alignment computers should be calibrated at least once a year during maintenance.

WHEEL ALIGNMENT MEASUREMENT PROCEDURE

Special tools and workshop equipment required

1. Alignment Computer V.A.G 1813 or VW-/Audi-approved alignment equipment
2. Brake Pedal Actuator V.A.G 1869/2
3. Insert Tool T10179
4. Socket XZN 18 T10001
5. Vehicle Diagnosis, Testing and Information System VAS 5051B Steering Wheel Scales VAS 6458

Overview

Note. Vehicle must only be measured at curb weight WHEEL ALIGNMENT TEST PREREQUISITES .

Observe the following Work Sequence!

1 - Drive the vehicle onto the alignment rack without tension. Move the vehicle back and forth if necessary to relieve any tension on the axle components.

2 - The steering wheel must be "evened out" into the center position before beginning the measuring and adjusting. Use steering wheel scales VAS 6458 for this.

3 - Front axle camber, checking and adjusting

a - Front and all wheel drive, refer to FRONT AXLE CAMBER, CENTERING

4 - Check rear axle camber and adjust if necessary.

a - Front and all wheel drive, refer to REAR AXLE CAMBER, ADJUSTING

5 - Check rear axle toe and adjust if necessary.

a - Front and all wheel drive, refer to REAR AXLE TOE, ADJUSTING

6 - Check toe in curb weight position at the front axle and adjust if necessary.

a - Front and all wheel drive, refer to FRONT AXLE TOE, ADJUSTING .

7 - If adjustments were made at the suspension during axle alignment on vehicles with ESP or ABS, calibrate the steering angle sensor -G85- and reprogram the steering. Refer to WHEEL ALIGNMENT .

8 - On vehicles with level control sensor, headlamp range control basic setting must be performed after an axle alignment. Refer to LEVEL CONTROL SYSTEM SENSOR OVERVIEW .

To do this, use the vehicle diagnostic tester.

Insert V.A.G 1869/2.

Scheme 5

FASTENER TIGHTENING SPECIFICATIONS

WHEEL ALIGNMENT SPECIFICATIONS

Specifications valid for all engine versions.

FRONT AXLE CAMBER, CENTERING

Note. Camber cannot be adjusted. The camber can only be centered evenly within the tolerance range by sliding the subframe.

Remove the lower noise insulation, depending on the model and engine. Refer to Removal and Installation .

Remove the bolts -1 and 2- and install new bolts loosely.

Scheme 6

Slide the subframe -3- in the direction of the arrow until the camber is even on both sides.

Tighten the subframe/console bolts -1 and 2-.

Tightening specifications, refer to SUBFRAME, DIAGONAL BRACE, BALL JOINT, STABILIZER BAR, TRANSVERSE LINK, BRACKET AND VEHICLE LEVEL SENSOR OVERVIEW .

Note. After moving the subframe and steering gear, check the clearance between the steering column universal joint and the cutout in the bulkhead.

Remove securing nuts -arrows- and remove foot well trim.

Scheme 7

There must be at least 5 mm of clearance all the way around between the universal joint -2- and the cut-out in the plenum chamber bulkhead.

Scheme 8

REAR AXLE CAMBER, ADJUSTING

Special tools and workshop equipment required

1. 18 mm Socket T10001
2. Insert Tool T10179

Remove upper transverse link to subframe connection nut -A- and loosely install new nut.

Scheme 9

Set the camber by turning the eccentric bolt -B- with the T10001.

Scheme 10

Note. The maximum adjustment range is 90° to left or right of center position.

Tighten nut -A- with T10179.

Tightening specifications, refer to SUBFRAME, DIAGONAL BRACE, LOWER TRANSVERSE LINK, UPPER TRANSVERSE LINK, TIE ROD AND LEVEL CONTROL SYSTEM OVERVIEW .

Use special tool as follows.

Scheme 11

After tightening nut -A-, check camber value once more. Refer to WHEEL ALIGNMENT SPECIFICATIONS .

REAR AXLE TOE, ADJUSTING

Remove lower transverse link to subframe connection nut -A- and loosely install new nut.

Scheme 12

Adjust toe by turning eccentric bolt -B-.

Note. The maximum adjustment range is 90° to left or right of center position.

Tighten nut -A-.

Tightening specifications, refer to SUBFRAME, DIAGONAL BRACE, LOWER TRANSVERSE LINK, UPPER TRANSVERSE LINK, TIE ROD AND LEVEL CONTROL SYSTEM OVERVIEW .

After tightening nut -A-, check toe value once more. Refer to WHEEL ALIGNMENT SPECIFICATIONS .

FRONT AXLE TOE, ADJUSTING

To loosen or tighten lock nut -B-, counter hold at the tie rod end -A- with a wrench.

Scheme 13

Loosen lock nut -B-.

Adjust toe on left and right-hand wheels with hex -C-.

Note. Make sure that boot on the steering gear is not damaged or twisted. Twisted boots wear out quickly. Only tighten lock nuts when vehicle is resting on the ground - tie rod end must be parallel to suspension strut steering lever.

Tighten lock nut -B- and check toe-in value again.

Note. After tightening lock nut -B- it is possible that the value deviates slightly. If the measured toe nevertheless lies within the tolerance, the adjustment is correct.

TIRES, CHANGING, WITH TIRE PRESSURE MONITORING SYSTEM

Note. Nickel-plated valve insert must be replaced with every tire change. The tire pressure sensor can be reused.

Let air out of tire by removing nickel-plated valve insert.

Remove the tires TIRES, CHANGING, WITH TIRE PRESSURE MONITORING SYSTEM .

When reusing used tire pressure sensors --, inspect connection between sensor and metal valve visually for damage.

Note. Damaged sensors must be replaced.

Install tires TIRES, CHANGING, WITH TIRE PRESSURE MONITORING SYSTEM .

Install new nickel-plated valve insert.

Fill tires.

Balance the tire.

Dismounting Tire

Scheme 14

Roll or press the tire off.

When using pressure paddles, first separate tires from the side opposite of valve.

Note. Do not use pressure paddles in hatched area -a-.

Position mounting head near valve so that so that tire iron can be put on approximately 30° -b- next to tire valve.

Then remove tire in valve area first.

Mounting Tire

Scheme 15

Note. Do not use pressure paddles in valve area.

Position tire pressure sensor approximately 180° opposite the mounting head.

Press tire in bed approximately 90° in front of mounting head -arrow-.

Mount tire.

TIRE PRESSURE MONITORING CONTROL MODULE

Removing

Note. The tire pressure monitoring control module -J502- is located under the glove compartment. Before removing control module, read out code using Guided Fault Finding in "Replace control module" function.

Remove the glove compartment. Refer to Removal and Installation .

Press the locking mechanism -arrow- upward and pull the tire pressure monitoring system control module -1- out of the retainer slightly.

Scheme 16

Disconnect the connector -2- and remove the tire pressure monitoring control module -1- from the retainer.

Installing

Install in reverse order of removal.

If tire pressure monitoring control module is replaced, system must be coded. Refer to TIRE PRESSURE MONITORING SYSTEM USAGE, DIRECT SYSTEM .

TIRE PRESSURE SENSOR

Special tools and workshop equipment required

1. Torque wrench V.A.G 1410

Removing

Scheme 17

Remove the union nut -1-.

Remove tire pressure sensor -2- from rim well.

Installing

Note. Damaged sensors must be replaced. When using used tire pressure monitoring sensors, visually check the connection between the sensor and the valve for damage. After using tire sealant, wipe off the tire pressure sensors while they are still installed and make sure the hole in the pressure sensor is not plugged. If the hole is plugged, replace the tire pressure sensor to prevent incorrect measurements. Do not clean the tire pressure sensors with steam jet cleaners or strong compressed air. When sliding on a new gasket and sealing washer, counter hold the valve body to prevent the antenna connection from being damaged.

Insert the tire pressure sensor with the new seal and sealing washer through the rim from the inside and press the seal into the valve bore.

Install union nut -1- on tire pressure sensor -2-.

Press tire pressure sensor -1- onto rim well and tighten union nut. Refer to TIRE PRESSURE MONITORING SENSOR OVERVIEW .

Scheme 18

Note. After installing, tire pressure sensor must lie firmly in its bed. Sealing washer -arrow- becomes slightly deformed when doing this.

SPECIAL TOOLS

Special tools and workshop equipment required

Scheme 19

1. Vehicle Diagnostic, Testing and Information System VAS 5051
2. Steering Wheel Scales VAS 6458
3. Locating pins T10096
4. Torque wrench V.A.G 1410

Scheme 20

Special tools and workshop equipment required

1. Alignment Computer V.A.G 1813 or VW-/Audi-approved alignment equipment
2. Brake Pedal Actuator V.A.G 1869/2
3. Insert Tool T10179
4. Socket XZN 18 T10001

See also:
• General Information
• LEVEL CONTROL SYSTEM SENSOR OVERVIEW
• Removal and Installation
• SUBFRAME, DIAGONAL BRACE, BALL JOINT, STABILIZER BAR, TRANSVERSE LINK, BRACKET AND VEHICLE LEVEL SENSOR OVERVIEW
• Removal and Installation
• TIRES, CHANGING, WITH TIRE PRESSURE MONITORING SYSTEM
• TIRE PRESSURE MONITORING SYSTEM USAGE, DIRECT SYSTEM
• TIRE PRESSURE SENSOR
• WHEEL ALIGNMENT TEST PREREQUISITES
• FRONT AXLE CAMBER, CENTERING
• REAR AXLE CAMBER, ADJUSTING
• REAR AXLE TOE, ADJUSTING
• FRONT AXLE TOE, ADJUSTING
• WHEEL ALIGNMENT
• WHEEL ALIGNMENT SPECIFICATIONS