Contents Wiring diagrams Section: Steering Column Switches All sections

Steering: Other Audi A6 C5 facelift

Steering Column Switches 16 illustrations ~5188 words

Check pressure

Note. To avoid damaging the pump, note the following: Do not allow the engine to run more than 10 seconds during the test. Start the engine without depressing the accelerator pedal and let the engine idle. Make a note of the pressure immediately after starting the engine when it is idling (this may require a second technician). As the pressure drops during the check, the highest pressure is definitive. Specification: 110 - 120 bar

  1. Turn engine off. If specification is not obtained, replace the power steering pump. See «POWER STEERING FLUID LEVEL, CHECKING; STEERING SYSTEM, BLEEDING AND CHECKING FOR LEAKS»(ref-196277-S13231397802005100800000) .
  2. Check fluid level. See «POWER STEERING FLUID LEVEL, CHECKING; STEERING SYSTEM, BLEEDING AND CHECKING FOR LEAKS»(ref-196277-S13231397802005100800000) .
  3. Bleed steering system. See «STEERING SYSTEM, BLEEDING»(ref-196277-S24095199702005100800000) .
  4. Check steering system for leaks. See «STEERING SYSTEM, CHECKING FOR LEAKS»(ref-196277-S41161247432005100800000) .

Vehicles with 5-valve 6-cylinder gasoline engine

Note. Always replace seals Do not reuse fluid you have drained. Hydraulic fluid: Part No. G 002 000

The following list pertains to see scheme 9.

  1. Expansion hose Partial section with line, goes to steering gear
  2. Hex bolt, 6 Nm
  3. Hex bolt, 9 Nm
  4. Ignition coils with brackets
  5. Power steering pump Before installing, fill with power steering fluid. See «POWER STEERING / OIL CIRCULATION FOR 6-CYLINDER ENGINE»(ref-196277-S02701643202005100800000) , Notes: Check delivery pressure. See «DELIVERY PRESSURE OF POWER STEERING PUMP, CHECKING»(ref-196277-S25230505442005100800000) . Removing and installing, see «POWER STEERING PUMP, REMOVING AND INSTALLING»(ref-196277-S01695017322005100800000)
  6. Clamp Always replace Tighten using VAG1275
  7. Intake hose Marking -P- faces toward pump
  8. Line for intake hose
  9. Socket head bolt, 22 Nm Rear mount for power steering pump to bracket
  10. Bushing, slotted Used to balance out tolerances
  11. Socket head bolt, 22 Nm Mounting of power steering pump bracket to crankcase
  12. Socket head bolt, 22 Nm Mounting of power steering pump bracket to crankcase
  13. Socket head bolt, 22 Nm Front mounting of power steering pump to bracket
  14. Bracket for power steering pump
  15. Socket head bolt, 22 Nm Use 3212 special tool to counterhold when loosening or tightening
  16. Belt pulley
  17. Seal Always replace
  18. Banjo fitting, 47 Nm

When installing, pay particular attention to the following points

Note. Before installing a new pump, fill intake side with hydraulic fluid and turn pump by hand until fluid comes out the pump side. Clean any areas in engine compartment covered with fluid.

Scheme 22

Scheme 22: When installing, pay particular attention to the following points
  1. Bolt pump to bracket and tighten to 22 Nm.
  2. Install pump together with bracket.
  3. First tighten front two bolts, and then rear two bolts to 22 Nm.
  4. Install new seals on banjo fitting.
  5. Tighten banjo fitting for expansion hose -2- to 47 Nm.
  6. Bolt line for expansion hose to cylinder head and tighten to 6 Nm. See «POWER STEERING PUMP, REMOVING AND INSTALLING»(ref-196277-S01695017322005100800000) , item no. 20.
  7. Install intake hose -1- with marking -P- facing toward pump
  8. Remove 3094 hose clamps.
  9. Tighten hex-socket bolts for power steering pump belt pulley to 22 Nm.
  10. First install ribbed belt onto crankshaft pulley and idler wheel. Push belt onto tensioning roller last. NOTE: Note previously marked direction of rotation of belt and be sure that it is seated correctly on pulley. Routing of ribbed belt: D1 - without air conditioning D2 - with air conditioning
  11. Remove 3204 drift.
  12. First install electric fan and then viscous fan.
Tightening MethodTorque
1331 torque wrench and 3312 open-end wrench (1)37 Nm
Torque wrench without 3312 open-end wrench (1)70 Nm
(1) Fan has LEFT-HAND threads.
(1)Fan has LEFT-HAND threads.

TIGHTENING TORQUE FOR VISCOUS FAN (6-CYLINDER ENGINE)

  1. Check fluid level. See «POWER STEERING FLUID LEVEL, CHECKING; STEERING SYSTEM, BLEEDING AND CHECKING FOR LEAKS»(ref-196277-S13231397802005100800000) .
  2. Bleed steering system. See «STEERING SYSTEM, BLEEDING»(ref-196277-S24095199702005100800000) .
  3. Check steering system for leaks. See «STEERING SYSTEM, CHECKING FOR LEAKS»(ref-196277-S41161247432005100800000) .

Pressure checking

  1. Open hose clamps (arrows) and remove intake hose -1-.
  2. Remove union nut -2- while counterholding hex bolt on pressure line.
  3. Use plug to plug line to steering gear.
  4. Screw VAG1402/3 adapter into line to power steering pump.
  5. Install hose from VAG1402 pressure gauge on VAG 1402/3 adapter.
  6. Close shut-off valve on pressure gauge (lever faces toward left).
  7. Reinstall intake hose.
  8. If necessary, add fluid to the power steering fluid reservoir.

Check pressure

Note. To avoid damaging pump, note the following: Do not allow the engine to run more than 10 seconds during the test. Start engine without depressing accelerator pedal and let engine idle. Make a note of pressure immediately after starting engine when it is idling (this may require a second technician). As pressure drops during check, the highest pressure is definitive.

Audi A 6

  1. Specification: 120-130 bar positive pressure.

Audi allroad

  1. Specification: 120-130 bar positive pressure.
  1. Turn engine off. If specification is not obtained, replace the power steering pump. See «POWER STEERING PUMP, REMOVING AND INSTALLING»(ref-196277-S21984833072005100800000) .
  2. Check fluid level. See «POWER STEERING FLUID LEVEL, CHECKING; STEERING SYSTEM, BLEEDING AND CHECKING FOR LEAKS»(ref-196277-S13231397802005100800000) .
  3. Bleed steering system. See «STEERING SYSTEM, BLEEDING»(ref-196277-S24095199702005100800000) .
  4. Check steering system for leaks. See «STEERING SYSTEM, CHECKING FOR LEAKS»(ref-196277-S41161247432005100800000) .

Vehicles with 6-cylinder gasoline engine, BiTurbo

Note. Always replace seals Do not reuse fluid you have drained. Hydraulic fluid: Part No. G 002 000

The following list pertains to see scheme 32.

  1. Expansion hose Partial section with line, goes to steering gear
  2. Hex bolt, 7.5 Nm M8 x 15
  3. Power steering pump Before installing, fill with power steering fluid. See «POWER STEERING / OIL CIRCULATION FOR 6-CYLINDER ENGINE»(ref-196277-S02701643202005100800000) , Notes" Check delivery pressure. See «DELIVERY PRESSURE OF POWER STEERING PUMP, CHECKING»(ref-196277-S27240263842005100800000) . Removing and installing. See «POWER STEERING PUMP, REMOVING AND INSTALLING»(ref-196277-S21984833072005100800000) .
  4. Clamp Tighten using VAG1275
  5. Intake hose Marking -P- must align with flash on pump
  6. Line
  7. Socket head bolt, 22 Nm Rear mount for power steering pump to bracket
  8. Bushing, slotted Used to balance out tolerances
  9. Bracket for power steering pump
  10. Socket head bolt, 22 Nm Mounting of power steering pump bracket to crankcase
  11. Socket head bolt, 22 Nm Front mounting of power steering pump to bracket
  12. Hex bolt, 22 Nm Mounting of power steering pump bracket to crankcase
  13. Socket head bolt, 22 Nm Use 3212 special tool to counterhold when loosening or tightening
  14. Belt pulley
  15. Seal Always replace
  16. Banjo bolt, 47 Nm

Removing

  1. Remove bumper. See «FRONT BUMPER»(ref-196283-S08508749282005100800000) .
  2. Bring lock carrier into service position. See «LOCK CARRIER, SERVICE POSITION»(ref-196278-S34319672162005100800000) .
  3. Remove bolts (arrows) and remove front cover.

Note. The viscous fan has a LEFT-HAND THREAD, unbolt in direction of (arrow).

Scheme 23

Scheme 23
  1. Counterhold viscous fan pulley using -3212 spanner wrench and remove viscous fan using -3312 open-end wrench.
  2. Lift viscous fan up and out. NOTE: Before removing ribbed belt, note direction of rotation with chalk or felt-tip marker. Reversing the direction of rotation of a run-in belt can destroy the belt. When installing the ribbed belt, make sure it is seated correctly on the pulleys.
  3. To loosen ribbed belt, turn clockwise using 17 mm box wrench until two holes are aligned (arrow). Counterhold in position using 3204 drift.
  4. Remove ribbed belt from belt pulley.
  5. Remove pressure line -1-. NOTE: Pay attention to retaining strips -2-.
  6. Unbolt belt pulley for power steering pump, counterhold with 3212 spanner wrench.
  7. Pinch off intake line using 3094 hose clamp.
  8. Disconnect harness connector at charge air pressure sensor -G31- (arrow).
  9. Remove rubber shroud -1-.
  10. Open clamp (arrow) and disconnect intake hose from pump.
  11. Unbolt pressure line -1-.
  12. Unbolt bracket for power steering pump, items -2-, -3-, and -4-.
  13. Remove pump together with bracket.
  14. Unbolt power steering pump from bracket.

Note. Before installing a new pump, fill intake side with hydraulic fluid and turn pump by hand until fluid comes out the pump side. Clean any areas in engine compartment covered with fluid.

Scheme 24

Scheme 24: When installing, pay particular attention to the following points
  1. Bolt pump to bracket.
  2. First tighten front two bolts, and then rear two bolts to 22 Nm.
  3. Install pump together with bracket.
  4. Install new seals on banjo bolt.
  5. Tighten banjo bolt for pressure line -1- to 50 Nm. see scheme 43
  6. Install intake hose, marking -P- must align with flash on pump
  7. Remove 3094 hose clamps.
  8. Tighten hex-socket bolts for power steering pump belt pulley to 22 Nm. TIGHTENING TORQUE FOR VISCOUS FAN (2.7L 6-CYLINDER BITURBO ENGINE) Tightening Method Torque 1331 torque wrench and 3312 open-end wrench (1) 37 Nm Torque wrench without 3312 open-end wrench (1) 70 Nm (1) Fan has LEFT-HAND threads.
  9. Install lock carrier. «LOCK CARRIER WITH ATTACHMENTS, REMOVING AND INSTALLING»(ref-196278-S04365420232005100800000).
  10. Install bumper. See «FRONT BUMPER»(ref-196283-S08508749282005100800000).
  11. Check fluid level. See «POWER STEERING FLUID LEVEL, CHECKING; STEERING SYSTEM, BLEEDING AND CHECKING FOR LEAKS»(ref-196277-S13231397802005100800000).
  12. Bleed steering system. See «STEERING SYSTEM, BLEEDING»(ref-196277-S24095199702005100800000).
  13. Check steering system for leaks. See «STEERING SYSTEM, CHECKING FOR LEAKS»(ref-196277-S41161247432005100800000).
  1. Remove cover for power steering fluid reservoir.
  2. Pinch off intake line using 3094 hose clamp.
  3. Unbolt expansion hose from power steering pump.
  4. Install VAG 1402/3 adapter on power steering pump in place of the banjo bolt.
  5. Install hose from VAG1402 pressure gauge on VAG 1402/3 adapter.
  6. Close shut-off valve on pressure gauge (lever faces toward left).
  7. Remove 3094 hose clamp and add fluid to power steering fluid reservoir if necessary.

Check pressure

Note. To avoid damaging pump, note the following: Do not allow engine to run more than 10 seconds during the test. Start engine without depressing the accelerator pedal and let engine idle. Make a note of pressure immediately after starting engine when it is idling (this may require a second technician). As pressure drops during check, the highest pressure is definitive.

Specification: 120-130 bar

  1. Turn engine off. If specification is not obtained, replace the power steering pump. See «POWER STEERING PUMP, REMOVING AND INSTALLING»(ref-196277-S38248914782005100800000) .
  2. Check fluid level. See «POWER STEERING FLUID LEVEL, CHECKING; STEERING SYSTEM, BLEEDING AND CHECKING FOR LEAKS»(ref-196277-S13231397802005100800000) .
  3. Bleed steering system. See «STEERING SYSTEM, BLEEDING»(ref-196277-S24095199702005100800000) .
  4. Check steering system for leaks. See «STEERING SYSTEM, CHECKING FOR LEAKS»(ref-196277-S41161247432005100800000) .

Vehicles with 8-cylinder gasoline engine

Note. Always replace seals Do not reuse fluid you have drained. Hydraulic fluid: Part No. G 002 000 When replacing the power steering pump always check alignment of the pulleys for A/C compressor and power steering pump.

The following list pertains to see scheme 53.

  1. Screw and washer assembly, 22 Nm
  2. Bracket
  3. Socket head bolt, 22 Nm Rear mount for power steering pump to bracket
  4. Bushing, slotted Used to balance out tolerances
  5. Expansion hose Power steering pump - steering gear Note installation position: Angle -a- : approx. 75°
  6. Banjo bolt, 47 Nm
  7. Seals Always replace
  8. Intake hose Power steering pump - power steering fluid reservoir Note installation position: Angle -b- : approx. 90°
  9. Banjo bolt, 47 Nm
  10. Power steering pump Before installing, fill with power steering fluid. Notes, see «POWER STEERING / OIL CIRCULATION FOR 8-CYLINDER ENGINE»(ref-196277-S09386834262005100800000) . Check delivery pressure. See «DELIVERY PRESSURE OF POWER STEERING PUMP, CHECKING»(ref-196277-S01547521342005100800000) . Removing and installing, see «POWER STEERING PUMP, REMOVING AND INSTALLING»(ref-196277-S38248914782005100800000) .
  11. Shims Choose shims so that pulleys for A/C compressor and power steering pump align. Check alignment of ribbed belt. See «CHECK AND ADJUST ALIGNMENT OF PULLEY»(ref-196277-S29574158172005100800000)
  12. Belt pulley
  13. Socket head bolt, 22 Nm Use 3212 special tool to counterhold when loosening or tightening

Note. Before installing a new pump, fill intake side with hydraulic fluid and turn pump by hand until fluid comes out the pump side. Clean areas in engine compartment contaminated with fluid. Installation position, expansion hose, see CHECK AND ADJUST ALIGNMENT OF PULLEY Installation position, intake hose, see INSTALLATION POSITION INTAKE LINE

  1. Place pump in bracket from below and hand-tighten all three bolts.
  2. Install expansion and intake hoses with new seals, but do not tighten all the way.
  3. Tighten two front bolts.

Note. The front of the belt pulley is marked "front".

Scheme 25

Scheme 25
  1. Bolt on belt pulley for power steering pump, counterhold with 3212 spanner wrench.
  1. Remove underbody guard.
  2. Detach cover from fluid reservoir.
  3. Unclip connector unit (arrow).
  4. Lift off connector unit.
  5. Unfasten both hose clamps and remove air hose (arrow).
  6. Unfasten both hose clamps (arrows) and remove air hose.
  7. Install VAG 1402/3 adapter on power steering pump in place of the banjo bolt.
  8. Install hose from VAG1402 pressure gauge on VAG 1402/3 adapter.
  9. Close shut-off valve on pressure gauge (lever faces toward left).
  10. Remove 3094 hose clamp and fluid to power steering fluid reservoir if necessary.
  11. Re-attach lower air hose.

Note. Engine is not to be started without lower air hose installed, to avoid damaging turbocharger.

Checking pressure

To avoid damaging pump, note the following

  1. Do not allow the engine to run more than 10 seconds during the test.
  2. Start engine without depressing accelerator pedal and let engine idle.
  3. Make a note of pressure immediately after starting engine when it is idling (this may require a second technician).
  4. As pressure drops during check, the highest pressure is definitive. Specification: 120 - 130 bar
  1. Turn engine off. If specification is not obtained, replace the power steering pump. See «POWER STEERING PUMP, REMOVING AND INSTALLING»(ref-196277-S38248914782005100800000) .
  2. Check fluid level. See «POWER STEERING FLUID LEVEL, CHECKING; STEERING SYSTEM, BLEEDING AND CHECKING FOR LEAKS»(ref-196277-S13231397802005100800000) .
  3. Bleed steering system. See «STEERING SYSTEM, BLEEDING»(ref-196277-S24095199702005100800000) .
  4. Check steering system for leaks. See «STEERING SYSTEM, CHECKING FOR LEAKS»(ref-196277-S41161247432005100800000) .

Vehicles with 8-cyl. engine, biturbo

Note. Always replace seals Do not reuse fluid you have drained. Hydraulic fluid: Part No. G 002 000 When replacing the power steering pump always check alignment of the pulleys for A/C compressor and power steering pump.

The following list pertains to see scheme 105.

  1. Sheet-metal screw and washer assembly, 22 Nm
  2. Bracket
  3. Socket-head bolt, 22 Nm Rear mount for power steering pump to bracket
  4. Slotted bushing For tolerance compensation
  5. Expansion hose Power steering pump - steering gear Note installation position: Angle -a- : approx. 75°
  6. Banjo bolt, 47 Nm
  7. Seals Always replace
  8. intake hose Power steering pump - fluid reservoir Note installation position: Angle -b- : approx. 90°
  9. Banjo bolt, 50
  10. Power steering pump Fill with fluid before installing. See «POWER STEERING / OIL CIRCULATION FOR 8-CYLINDER ENGINE»(ref-196277-S09386834262005100800000) , Notes: Checking delivery pressure, see «DELIVERY PRESSURE OF POWER STEERING PUMP, CHECKING»(ref-196277-S01547521342005100800000) . Removing and installing, see «POWER STEERING PUMP, REMOVING AND INSTALLING»(ref-196277-S38248914782005100800000)
  11. Shims Choose shims so that pulleys for A/C compressor and power steering pump align. Check alignment of ribbed belt. See «CHECK AND ADJUST ALIGNMENT OF PULLEY»(ref-196277-S29574158172005100800000) .
  12. Belt pulley
  13. Socket-head bolt, 22 Nm Use 3212 special tool to counterhold when loosening or tightening

For vehicles through model year 1998

Note. For vehicles from model year 1999, see FOR VEHICLES FROM MODEL YEAR 1999 .

The following list pertains to see scheme 123.

  1. Hex bolt, 67 Nm
  2. Boot seal Check for tears and scuffing
  3. Eccentric bolt Torx T50 To release tension, turn clockwise. To tension, turn counterclockwise.
  4. Steering column
  5. Self-locking hex nut, 30 Nm Always replace
  6. Screw and washer assembly, 7 Nm For adjusting toe-in
  7. Bolt
  8. Self-locking nut, 45 Nm Always replace
  9. Return hose
  10. Expansion hose
  11. Cylinder bolt, 13 Nm Locking screw for centering steering, see «LOCKING SCREW FOR CENTERING STEERING»(ref-196277-S20258617182006041200000)
  12. Power steering gear with tie rods Removing and installing, see «POWER STEERING GEAR, REMOVING AND INSTALLING»(ref-196277-S17586597782005100800000) Servicing, see «STEERING GEAR, SERVICING»(ref-196277-S33649055712005100800000)
  13. Banjo bolt, 40 Nm With integrated checkvalve
  14. Seal, 14 x 20 Always replace
  15. Banjo bolt, 47 Nm
  16. Seal, 16 x 22 Always replace
  17. Hex bolt, 35 Nm
  18. Outer steering shock absorber Only for 6- cylinder models
  19. Socket
  20. Rubber bushing Two-piece
  21. Hex-nut, tighten to 10 Nm. To loosen and tighten, counterhold hex bolt on piston rod for steering shock absorber.
  1. Locking bolt for centering steering, 13 Nm.
  2. Thread hole in steering gear

For vehicles from model year 1999

Note. For vehicles through model year 1998 (inclusive), see POWER STEERING GEAR, ASSEMBLY OVERVIEW .

The following list pertains to see scheme 125.

  1. Hex bolt, 67 Nm
  2. Boot seal Check for tears and scuffing
  3. Eccentric bolt Torx T50 To release tension, turn clockwise. To tension, turn counterclockwise.
  4. Steering column
  5. Self-locking hex nut, 30 Nm Always replace
  6. Screw and washer assembly, 7 Nm For adjusting toe-in
  7. Bolt
  8. Self-locking nut, 45 Nm Always replace
  9. Steering knuckle from wheel bearing housing
  10. Pressure line Tighten union nut to 40 Nm. See item no. 4 on «POWER STEERING GEAR, ASSEMBLY OVERVIEW»(ref-196277-S37923113222005100800000) Note installation position: At steering gear, see «INSTALLATION POSITION, RETURN LINE AND PRESSURE LINE AT STEERING GEAR, FOR LEFT HAND DRIVE (LHD) VEHICLES»(ref-196277-S16909285432006041200000)
  11. Return hose Note installation position: At steering gear, see «INSTALLATION POSITION, RETURN LINE AND PRESSURE LINE AT STEERING GEAR, FOR LEFT HAND DRIVE (LHD) VEHICLES»(ref-196277-S16909285432006041200000)
  12. Cylinder bolt, 13 Nm Locking screw for centering steering, see «LOCKING SCREW FOR CENTERING STEERING»(ref-196277-S27999805162006041200000)
  13. Power steering gear with tie rods Removing and installing, see «POWER STEERING GEAR, REMOVING AND INSTALLING»(ref-196277-S17586597782005100800000) Servicing, see «STEERING GEAR, SERVICING»(ref-196277-S33649055712005100800000)
  14. Seal, 16 x 22 Always replace
  15. Banjo bolt, 47 Nm
  16. Seal, 14 x 20 Always replace
  17. Banjo bolt, 40 Nm With integrated checkvalve
  1. Locking bolt for centering steering, 13 Nm.
  2. Thread hole in steering gear

Pressure line

  1. Angle -a-: approx. 45°

Return hose

  1. Angle -b-: approx. 116°

Scheme 26

Scheme 26

Before beginning repairs on the electrical system

CAUTIONBefore beginning repairs on the electrical system: Obtain the anti-theft radio security code. Switch the ignition off. Disconnect the battery Ground (GND) strap. On vehicles equipped with Audi Telematics by OnStar®, switch-off the emergency (back-up) battery for the Telematic/Telephone Control Module prior to disconnecting vehicle battery. See EMERGENCY BATTERY, SWITCHING OFF/ON . After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Repair Manual and/or Owner's Manual. After reconnecting vehicle battery on vehicles equipped with Audi Telematics by OnStar®, switch-on the emergency (back-up) battery for the Telematic/Telephone Control Module. See EMERGENCY BATTERY, SWITCHING OFF/ON .

Scheme 27

Scheme 27: Removing

Scheme 28

Scheme 28
  1. Remove plenum chamber cover.
  2. Remove battery.
  3. Remove driver's side storage compartment. See «DRIVER'S STORAGE COMPARTMENT, REMOVING»(ref-196285-S31412443952005100800000)
  4. Put wheels in straight-ahead position
  5. Remove nut -1- at universal joint.
  6. Release tension on eccentric bolt by turning adjusting bolt (Torx T50) clockwise and remove bolt.
  7. Swing universal joint to side.
  8. Remove ignition key when steering wheel is centered.
  9. Move steering wheel slightly to engage steering lock. NOTE: If the steering wheel is turned too much with the steering gear removed, the spiral spring from the airbag may get turned too far and damaged.
  10. Pinch off intake line and return line using 3094 hose clamps.
  11. Remove front wheels.
  12. Remove hex bolt -1- and bolt -2-.
  13. Remove tie rod.
  14. Remove nut -1-. see scheme 134
  15. Pry out clip -2-.
  16. Remove cover. NOTE: Shown without wheel bearing housing and strut for the sake of illustration. Work outline only valid for 2.7 BiTurbo
  17. Lower subframe at rear. Work outline, see «6 SPD. MANUAL TRANSMISSION 01E - TRANSMISSION REMOVAL»(ref-233085)
  18. Removing left exhaust pipe See appropriate Exhaust System article.
  19. Remove shielding panel. Work outline is valid for all vehicles
  20. Place pan underneath vehicle to collect hydraulic fluid.
  21. Unbolt banjo bolt for return hose (22 mm wrench) from steering gear.
  22. Unbolt banjo bolt for pressure hose (19 mm wrench) from steering gear.
  23. For vehicles with servotronic, disconnect connector from servotronic valve.
  24. Unbolt mounting points -1-, -2-, and -3- from steering gear.
  25. Remove steering gear through left wheel housing (second technician required).

Installing

Use VAG1907 to removed center steering gear.

Scheme 29

Scheme 29: Installing
  1. Remove socket-head bolt -1- from steering gear.
  2. Move rack until centering position on rack (arrow) aligns with thread -2-.
  3. Hand-tighten VAG1907.
  4. Pay attention to bulkhead boot. NOTE: Always replace damaged seals. Check seal for proper seating!
  5. Position steering gear on plenum. NOTE: Make sure threads and contact surfaces of bolts are free of oil and grease.
  6. Install bolts -1- and -2-, but do not tighten. see scheme 139
  7. Screw in bolt -3- and tighten.
  8. Tighten bolts -1- and -2-. see scheme 139
  9. Screw on return hose and tighten banjo bolt (22 mm wrench) to 50 Nm.
  10. Screw on pressure hose and tighten banjo fitting (19 mm wrench) to 40 Nm.
  11. Release steering lock.
  12. Center steering wheel, then install universal join on steering pinion.
  13. Install adjusting bolt (Torx T50) and tighten counterclockwise.
  14. Unbolt VAG1907 tool from steering gear. 1 - Socket head bolt 2 - Thread bore in steering gear
  15. Seal steering gear using hex socket bolt - 1-; Tighten to 13 Nm.
  16. Tighten hex nut for adjusting bolt to 30 Nm.
  17. Install driver's side storage compartment.
  18. Install wheel housing cover.
  19. After completing installation of steering gear, remove 3094 hose clamps
  20. For the 2.7 BiTurbo, secure exhaust pipe, shielding panel and subframe. See «EXHAUST SYSTEM COMPONENTS, REMOVING AND INSTALLING»(ref-196252-S16273128932005100700000). See Caution for connecting Telematics battery in «REMOVING»(ref-196277-S14470215852005100800000).
  21. Install battery.
  22. Check fluid level. See «POWER STEERING FLUID LEVEL, CHECKING; STEERING SYSTEM, BLEEDING AND CHECKING FOR LEAKS»(ref-196277-S13231397802005100800000).
  23. Bleed steering system. See «STEERING SYSTEM, BLEEDING»(ref-196277-S24095199702005100800000).
  24. Check steering system for proper seal. See «STEERING SYSTEM, CHECKING FOR LEAKS»(ref-196277-S41161247432005100800000).
  25. Check alignment. See «SPECIFICATIONS & PROCEDURES»(ref-152882).
  1. Remove engine. See «ENGINE, REMOVING AND INSTALLING»(ref-196257-S42209693462005100700000) .
  2. Detach shields.
  3. Further removal operations are the same as for all other vehicles, see «INSTALLING»(ref-196277-S07498371972005100800000) .

Scheme 30

Scheme 30: Installing
  1. Installation is the same as for all other vehicles, see «INSTALLING»(ref-196277-S07498371972005100800000) .
  2. Attach shields. Tightening torque: 2 Nm
  3. Install engine. See «ENGINE, REMOVING AND INSTALLING»(ref-196257-S42209693462005100700000) .

This overview is valid for both Left Hand Drive (LHD) and Right Hand Drive (RHD) vehicles.

Note. Always replace self-locking nuts and bolts. Welding or straighten work on any steering components is not permissible. To grease the rack, only use steering gear grease AOF 063 000 04. Hydraulic fluid: Part No. G002 000

The following list pertains to see scheme 142.

  1. Tie rod end Check dust caps for damage and proper seating
  2. Hex-nut, tighten to 40 Nm.
  3. Spring clip Open using VAG1921
  4. Boot Check for damage Must not be twisted after toe is adjusted
  5. Clamp Tighten using VAG1275 Always replace
  6. Inner tie rod ball joint, 100 Nm Grease joint using steering gear grease A0F 063 000 04.
  7. Sealing ring Always replace
  8. Power steering gear Grease rack using steering gear grease A0F 063 000 04. Different versions with and without steering dampers, see Parts Catalog
  9. Cylinder bolt, 13 Nm Locking screw for centering steering

This overview is valid for both Left Hand Drive (LHD) and Right Hand Drive (RHD) vehicles.

Note. Always replace self-locking nuts and bolts. Welding or straighten work on any steering components is not permissible. To grease the rack, only use steering gear grease AOF 063 000 04. Hydraulic fluid: Part No. G 002 000

The following list pertains to see scheme 143.

  1. Tie rod end Check dust caps for damage and proper seating Version with and without ring, only new version available as replacement part
  2. Hex-nut, tighten to 40 Nm.
  3. Spring clip Open using VAG1921
  4. Boot Check for damage Must not be twisted after toe is adjusted
  5. Clamp Tighten using VAG1275 Always replace
  6. Sealing ring Always replace
  7. Inner tie rod ball joint, 100 Nm Grease joint using steering gear grease A0F 063 000 04.
  8. Bracket for steering damper
  9. Sealing ring Always replace
  10. Dished washer
  11. Clamp Tighten using VAG1275 Always replace
  12. Boot Check for damage
  13. Power steering gear Grease rack using steering gear grease A0F 063 000 04.
  14. Hex-nut, tighten to 10 Nm. To loosen and tighten, counterhold hex bolt on piston rod for steering damper.
  15. Socket
  16. Rubber bushing Two-piece
  17. Steering damper
  18. Hex bolt, 35 Nm
  19. Cylinder bolt, 13 Nm Locking screw for centering steering

Servotronic, servicing

  1. For vehicles with servotronic, the power steering contribution is electronically regulated according to vehicle speed.
  2. If electronics fail, steering works like a traditional power steering.
  3. Relay for servotronic control module -J236- is not On Board Diagnostic (OBD) capable.

Scheme 31

Scheme 31: Servotronic, checking voltage supply
  1. Remove driver's side storage compartment. See «DRIVER'S STORAGE COMPARTMENT, REMOVING»(ref-196285-S31412443952005100800000) . For Right Hand Drive (RHD) vehicles
  2. Unbolt mounting bracket and remove.
  3. Remove relay for servotronic control module -J236-, position 13.
  4. Switch ignition on
  5. Adjust VAG1526 digital multimeter to voltage range up to 20 volts.
  6. Measure at relay connector between terminals 6 and terminal 8. Specification: approx. 12 volts.
  7. If specified value is not obtained, check electrical wiring. See appropriate System Wiring Diagrams article.

Speed signal, checking

The speed signal comes from the speedometer -G21- in the instrument cluster.

  1. Remove driver's side storage compartment. See «DRIVER'S STORAGE COMPARTMENT, REMOVING»(ref-196285-S31412443952005100800000) . For Right Hand Drive (RHD) vehicles
  2. Unbolt mounting bracket and remove.
  3. Remove relay for servotronic control module -J236-, position 13.
  4. If the voltage supply, the servotronic valve and the speed indication at the speedometer are OK, check electrical wire between terminal 4 and speedometer -G21-. See appropriate System Wiring Diagrams article.
  5. If electrical wire between terminal 4 and speedometer -G21- is OK, replace relay for servotronic.

Servotronic valve, checking

  1. Remove driver's side storage compartment. «DRIVER'S STORAGE COMPARTMENT, REMOVING»(ref-196285-S31412443952005100800000) . For Right Hand Drive (RHD) vehicles
  2. Unbolt mounting bracket and remove.
  3. Remove relay for servotronic control module -J236-, position 13.
  4. Adjust VAG1526 digital multimeter to resistance range up to 200 Ohm.
  5. Measure at relay connector between terminals 2 and terminal 5. Specification: 5 to 20 Ohm. If specified value is not obtained
  6. Disconnect connector for servotronic, (in left wheel housing, see «SERVOTRONIC VALVE, CHECKING»(ref-196277-S09003776022005100800000) ).
  7. Check wire between relay connector and servotronic valve for short circuit and open circuit. See appropriate System Wiring Diagrams article.
  8. If the wire connection is OK, remove steering gear and replace servotronic valve.
  1. Tighten tie rod to 100 Nm
  2. When installing boot, be sure: The smaller diameter of boot snaps into groove at tie rod. The boot does not get twisted.
  3. Replace inner (large) clamp.
  4. Check alignment. See «SPECIFICATIONS & PROCEDURES»(ref-152882) .

Note. Two technicians are required for adjustments. Adjust with engine off.

Scheme 32

Scheme 32: Power steering gear, adjusting
  1. Raise vehicle on platform.
  2. Wheels in straight-ahead position.
  3. Turning the steering wheel back and forth (approx. 30° off center axis) will produce a rattling noise if steering play is too large.
  4. Second technician turns adjustment bolt (arrow) carefully during this, until rattling noise cannot be heard in vehicle interior anymore.
  5. Road test vehicle.
  6. Be sure that steering returns to straight-ahead position on its own, without catching, after vehicle is maneuvered or driven in a curve. Correct adjustment if necessary.
  1. With engine not running, bring front wheels into straight ahead position.

Safety functions

To avoid overloading vehicle battery, the positioning motors are not activated simultaneously on implementing automatic adjustment, but rather in quick succession.

If voltage drops below 10.5 V, the motors are adjusted separately in turn.

Blockage detection (1.5 s) and running time error (max. 30 s/motor) result in direct deactivation of the motor concerned.

To make it easier to get into and out of vehicle, breaking of S contact (ignition off) causes steering column to move to its horizontal and tilt end position and, to return to its original position when S contact is made (ignition on).

Switching off easy-entry facility switch completely deactivates easy-entry function or immediately terminates current adjustment process.

Special features

Only belt height is adjusted if P button is pressed with S contact off. Steering column only assumes memory position with "S contact on".

If entry position has been altered beforehand, steering column does not return to original position with "S contact on" for example by way of manual adjustment.

Easy-entry facility

The easy-entry facility adjusts steering column to make it easier to get into and out of the vehicle.

  1. The easy-entry facility can be activated/deactivated by pressing button -B-.

If easy-entry facility is active (button -B- pressed), steering column moves into park position (forward and upward) when ignition key is removed.

Following entry into vehicle, the steering column moves to stored position as soon as vehicle key is turned to switch on ignition system.

The stored steering wheel position is only called up if seat memory button is in ON position (pressed).

If easy-entry facility is not active, steering column moves into stored position as soon as seat memory button is pressed.

Scheme 33

Scheme 33

The steering column is only available as a complete unit for a replacement part. Servicing is not possible.

Steering lock housing can be modified.

WARNINGBefore removing steering wheel, wheels must be positioned in the straight-ahead position Observe safety precautions for working on airbags. See appropriate Air Bag article in RESTRAINTS. If these procedures are not observed, the airbag system may not function properly during vehicle operation!
  1. Remove airbag unit for sport steering wheel. See appropriate Air Bag article in RESTRAINTS.
  2. Remove steering wheel for sport steering wheel. See appropriate Air Bag article in RESTRAINTS.
  3. Observe procedures for removing steering angle sensor in vehicles with Electronic Stabilization Program (ESP). See «STEERING ANGLE SENSOR -G85-, REMOVING AND INSTALLING»(ref-196273-S09082487532005100800000) .

Scheme 34

Scheme 34: Removing steering column switch
  1. Disengage steering column adjustment.
  2. Remove steering column completely.
  3. Remove bolt -1- (2x). Tightening torque 3 Nm.
  4. Remove handle -2-.
  5. Remove two Phillips head screws (arrows).
  6. Tightening torque: 0.6 Nm
  7. Remove upper trim for steering wheel switch -1-. To install, insert upper shell into catch in lower shell, swing down and bolt.
  8. Remove bolts -2- (2x). Tightening torque 0.6 Nm.
  9. Remove hex bolt -1-. Tightening torque: 0.6 Nm
  10. Remove lower trim for steering wheel switch -3-.
  11. Disconnect connector -1-. see scheme 167
  12. Loosen bolt -2-. see scheme 167 Tightening torque: 3 Nm
  13. Disconnect connector -3-. see scheme 167
  14. Remove steering column switch -4-. see scheme 167
  15. Release cable ties and connectors located at steering column. For vehicles with automatic transmission, locking cable must be disengaged
  16. Place selector lever in park position.
  17. Switch ignition key to position -B- "Ignition ON".
  18. Lift locking lever -1- slightly and pull locking cable -2- from ignition lock housing.
  19. Remove nut -1- at universal joint.
  20. Release tension on eccentric bolt by turning adjusting bolt (Torx T50) clockwise and remove bolt.
  21. Disengage steering column adjustment.
  22. Swing universal joint to side.
  23. Remove socket head bolts -1- for steering column and remove steering column. Removing and installing steering lock housing, see «STEERING LOCK HOUSING, REMOVING AND INSTALLING»(ref-196277-S03743470312005100800000).
  24. Check steering column for damage. See «STEERING COLUMN, CHECKING FOR DAMAGE»(ref-196277-S11193823122005100800000). Lock cylinder, removing and installing: See «LOCK CYLINDER FOR IGNITION/STARTER SWITCH, REMOVING AND INSTALLING»(ref-196297-S33664671702005100900000) (up to 2000), or «LOCK CYLINDER AND IGNITION/STARTER SWITCH»(ref-196302-S03040719852005100900000) (2001 and up).

Scheme 35

Scheme 35: Installing
  1. Attach steering column to crossmember using 4 socket head bolts -1-.
  2. Disengage steering column adjustment.
  3. Attach universal joint to pinion gear of steering gear.
  4. Insert locking screw (Torx T50) through lower part and pretension by counter clockwise.
  5. Insert hex nut and tighten to 30 Nm. For vehicles with automatic transmission, engage locking cable
  6. Switch ignition key to position -B- "Ignition ON" to engage locking cable.
  7. Place selector lever in park position.
  8. Insert locking cable -2- in ignition lock housing. Make sure locking bracket -1- engages.

Scheme 36

Scheme 36: Functional check of locking cable

Scheme 37

Scheme 37
  1. Switch ignition key to position -B- "Ignition ON". It must be possible to switch selector lever out of park position without it catching. It must not be possible to remove ignition key with selector lever in any position other than park.
  2. Place selector lever in park position. Ignition lock must operate smoothly, without catching. With ignition key in position -A- "Ignition off", it must not be possible to move the selector lever out of park. The ignition key can be removed. Basic setting and routing of locking cable See appropriate Automatic Transmission , SERVICING article.
  3. Install steering column switch with trim.
  4. Position steering column so that gaps in trim are uniform.
  5. Tighten socket head bolts -1- for steering column to 25 Nm.
  1. Tighten tolerance adjusting screw. See «STEERING COLUMN, CHECKING FOR DAMAGE»(ref-196277-S11193823122005100800000) , item 7.
  2. Connect wiring of servo motors.
  3. Use cable tie to attach wires to steering column.

All vehicles (continued)

  1. Install driver's side storage compartment.
  2. Install steering wheel for sport steering wheel.
  3. Install airbag control module for sport steering wheel. See appropriate Air Bag article in RESTRAINTS.
  4. Zero steering angle sensor. See «BASIC SETTING (SCAN TOOL FUNCTION 04)»(ref-196272-S00666064852005100800000) .
WARNINGBefore removing steering wheel, wheels must be positioned in the straight-ahead position. Observe safety precautions for working on airbags. See appropriate Air Bag article in RESTRAINTS. If these procedures are not observed, the airbag system may not function properly during vehicle operation!
  1. Remove airbag control module for sport steering wheel. See appropriate Air Bag article in RESTRAINTS.
  2. Remove steering wheel for sport steering wheel. See appropriate Air Bag article in RESTRAINTS.
  3. Remove steering column switch. See «STEERING COLUMN, ELECTRICALLY ADJUSTABLE»(ref-196277-S26600102272005100800000) .
  4. For vehicles with automatic transmission, disengage locking cable. See «STEERING COLUMN, CHECKING FOR DAMAGE»(ref-196277-S11193823122005100800000) .
  5. Drill out snap-off screws -1- or chisel out using appropriate chisel. Lock cylinder, removing and installing: See «LOCK CYLINDER FOR IGNITION/STARTER SWITCH, REMOVING AND INSTALLING»(ref-196297-S33664671702005100900000) (up to 2000), or «LOCK CYLINDER AND IGNITION/STARTER SWITCH»(ref-196302-S03040719852005100900000) (2001 and up).
  1. Install new snap-off screws.
  2. Tighten snap-off screw until head breaks off
  3. For vehicles with automatic transmission, engage locking cable. See «STEERING COLUMN, CHECKING FOR DAMAGE»(ref-196277-S11193823122005100800000) .
  4. Perform a function test of locking cable. See «STEERING COLUMN, CHECKING FOR DAMAGE»(ref-196277-S11193823122005100800000) .
  5. Install steering column switch.
  6. Install steering wheel for sport steering wheel. See appropriate Air Bag article in RESTRAINTS.
  7. Install airbag control module for sport steering wheel. See appropriate Air Bag article in RESTRAINTS.