Rack and pinion steering gear
- 1 - tie rod end
- 2 - nut, 50 Nm
- 3 - collar. Be sure to replace
- 4 - protective cover. Do not remove after toe adjustment. Can only be replaced after removing the steering gear (service station work).
- 5 - collar. Be sure to replace
- 6 - steering rod, 75 Nm. Can only be replaced after removing the steering gear (service station work).
- 7 - clamp with rubber
- 8 - return pipeline
- 9 - nut, 22 Nm
- 10 - clamp with rubber support. In the installation position, the arrow on the collar points in the direction of travel. If there is damage in the thread of the weld nut, replace the clamp.
- 11 - heat shield
- 12 - nut, 45 Nm. Self-locking, be sure to replace.
- 13 - switch drive support. When installed with a heat shield -11 must be centered on the nozzle (arrow A).
- 14 - bolt, 24 Nm
- 15 - seal
- 16 - hydraulic pipeline
- 17 - hollow bolt, 45 Nm. M16 x1.5
- 18 - hollow bolt, 40 Nm. M14 x 1.5
- 19 - sealing ring. Be sure to replace
- 20 - steering mechanism
Power steering pump with holder. Bottom version
- 1 - holder
- 2 - bolt, 25 Nm
- 3 - hollow bolt, 30 Nm
- 4 - pressure pipeline
- 5 - sealing ring
- 6 - suction hose
- 7 - clamp
- 8 - hydraulic booster pump. Fill with oil before removal. To do this, pour oil into the suction port of the pump and turn the hub by hand so that the oil comes out from the discharge side of the pump.
- 9 - pulley
- 10 - hexagon socket screw, 25 Nm
- 11 - V-belt
- 12 - V-belt tensioner
Power steering pump with holder. Top version
- 1 - holder
- 2 - bolt, 25 Nm
- 3 - hydraulic booster pump. Fill with oil before removal. To do this, pour oil into the suction port of the pump and turn the hub by hand so that the oil comes out from the discharge side of the pump.
- 4 - sealing ring. Be sure to replace.
- 5 - hollow bolt, 30 Nm
- 6 - pressure pipeline
- 7 - bolt, 22 Nm
- 8 - pulley
- 9 - hexagon socket screw, 25 Nm
- 10 - V-belt
- 11 - V-belt tensioner
Control movements of the driver are transmitted from the steering wheel through the steering column and steering mechanism to the wheels. The steering column is safety, with height adjustment within 44 mm and reach (length) within 50 mm.
The force that must be applied to the steering wheel when it is rotated, especially when the vehicle is stationary, is reduced by the hydraulic power steering. The power steering consists of an oil pump, reservoir and oil lines. The pump is driven by the engine via a V-belt. The pump draws oil from the reservoir and delivers it under pressure to the control valve body. The valve body is located in the steering gear. It is mechanically connected to the steering mechanism and supplies oil, depending on the angle of rotation of the steering wheel, into the corresponding cavity of the hydraulic cylinder. Here, the oil acts on the piston with the rack and thus maintains the movement of the steering wheel.
The steering wheel has an airbag. It is a folded air bag that inflates in the event of a frontal collision and thus protects the driver's head and upper body from hitting the steering wheel. In the event of a frontal impact of adequate force, a small charge in the airbag unit is ignited by the control unit and the resulting gases inflate the air bag within a few milliseconds. This time is sufficient to dampen the forward moving torso of the driver. Within a few seconds, the airbag compresses again as gases escape from the airbag openings.
Warning: Welding and straightening work on steering elements is not allowed. Replace self-locking nuts with new ones.
Warning: In addition to the driver airbag, there is also a front passenger airbag and side airbags front and rear. If a child seat is installed in the front passenger seat in the opposite direction of travel, the front passenger airbag must be deactivated. This work can only be carried out by an AUDI workshop. In addition, there must be an appropriate warning sign on the door beam, sun visor or instrument panel on the right side of the vehicle «No child seat in front», otherwise the driver may be fined under the control of the traffic police.
When equipping the vehicle with a side airbag for the seat backs, use only special upholstery approved by AUDI.
When removing and installing the airbag unit
1. Disconnect the negative cable (–) battery with the ignition off. Attention: As a result, information from the electronic memory units, such as the code of the radio receiver, is erased. Without a code, the radio can only be switched on by the manufacturer or an AUDI workshop. Therefore, read the materials of the subsection Entering the radio code.
2. Isolate the negative pole (–) battery to prevent accidental contact.
3. Set the wheels straight.
Warning: Failure to observe the above notes may result in failure of the airbag system during further operation.
General remarks
- After electrically connecting the airbag, before connecting the battery, turn on the ignition, the ignition key is in position "Movement".
- When connecting the battery, no unauthorized persons are allowed in the car.
- After removing the airbag, store it with the soft side facing up.
- If work is interrupted, the airbag must not be left unattended.
- Do not disassemble the airbag unit. If there is a defect, it will be replaced as a set. Since the pillow contains an explosive, it must be stored securely. The cushion must be disposed of by an AUDI workshop.
- Check the airbag only in a service station. In no case should a test lamp, voltmeter or ohmmeter be used to check the pillow.
- Do not expose the cushion to liquids such as lubricants or any cleaners.
- If the pillow has been dropped on a hard surface, it can no longer be used /
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