Subframe
Special Tools, Workshop Equipment, Test And Measuring Appliances And Aux. Items Required
^ 10-222 A Support
^ 10-222 AJ10 Additional spindle
^ 10-222 A/18 Adapter
^ 3393 Test mandrel
^ VAG 1332 Torque wrench
^ VAG 1383 A Engine/transmission jack
REMOVING
- Install support bar 10-222A together with supports 10-222 A/1.
Vehicles with 8-cylinder engine
- Remove oil filler pipe from engine.
- Install support bar 10-222A together with legs 10-222 A/1 and adapter 10-222 A/18.
The longer side of adapter 10-222 A/18 faces forward.
- Secure third spindle 10-222 A/10 with additional hook 10-222 A/2 on lifting eye at rear left of engine.
- Hook second additional hook 10-222 A/2 on lifting eye at rear right of engine.
Continued for all vehicles
- Take weight of engine/transmission assembly on the spindles.
- Remove wheels.
- Remove noise insulation tray.
Vehicles with automatic headlight range control
- Unclip clamp for coupling rod -1- for vehicle attitude sensor -G78- from track-control link -2-.
Continued for all vehicles
- Before loosening subframe, check that at least holes -1- and -2- align using special tool 3393.
If this is not the case, perform axle alignment measurements after installing the sub-frame!
- Unscrew hex bolt.
- Unscrew hex nuts -3- and -4- and take out coupling link.
- Remove hex nut -2- for track-control link on subframe and take out hex bolt.
- Remove hex bolt -1-.
- Unscrew hex bolts -arrows- from transmission mounting-1-.
Vehicles with all wheel drive
- Unbolt propshaft from transmission.
Continued for all vehicles
- Place transmission jack VAG 1383 A with 1359/2 under subframe and exert slight counter pressure.
- Unscrew bolts -1- and -2- at rear of subframe on both sides of vehicle.
A - Block of wood
- Using transmission jack VAG 1383A, lower subframe slightly.
- Remove hex bolts for track-control and guide links.
- Disconnect ABS vehicle speed sensor wiring out of retainer on brake caliper.
- Pull both track-control and guide links out of subframe.
- Unscrew hex bolts -A-.
- Loosen hex bolts -B- until the subframe can be taken out.
INSTALLING
- Install subframe and start hex bolts -A- and -B-.
- Guide both track-control and guide links into subframe.
- Install bolts into the inner holes -arrows-.
- Using transmission jack VAG 1383A, raise back of subframe slightly.
The subframe must be attached to the body with the help of special tool 3393 before tightening.
- Hole -1-, sub-frame hole -2- and aluminum console hole -3- must align on both sides.
Notes: This attachment only replaces subsequent axle alignment measurements when:
^ The sub-frame is removed completely and installed.
^ Holes -1- and -2- align before repairs are made.
- Tighten bolts -1- and -2- at rear of subframe on both sides of vehicle.
A - Block of wood
- Protect holes in body for mounting special tool 3393 against corrosion.
- Tighten hex bolts -A- and -B-.
- Tighten hex bolts -arrows- at transmission mounting -1-.
- Insert new hex bolts for guide link -1- and track-control link -2- and tighten new hex nuts.
Note: Press track-control and guide links inward when tightening.
- Tighten hex nuts -3- and -4-.
- Tighten hex bolt -5-
Vehicles with automatic headlight range control
- Install clamp for coupling rod for vehicle left front level control system sensor-G78-.
During installation, observe installing position of clamp on track-control link.
Continued for all vehicles
- Connect ABS vehicle speed sensor wiring into retainer on brake caliper.
Vehicles with all wheel drive
- Bolt propshaft onto transmission.
For vehicles with 8 cyl. engines
- Attach oil filler line to engine
Continued for all vehicles
- Install wheel and tighten.
SUBFRAME MOUNTINGS, REPLACING
Special Tools, Workshop Equipment, Test And Measuring Appliances And Aux. Items Required
^ 30-205 Thrust plate
^ 3291 Assembly tool
^ 3351 Puller
^ 3372 Removal tool
Pulling out bonded rubber mounting
- Saw off/cut-off rubber shoulder on subframe mounting up to outer bearing bushing.
If paint surface on sub-frame is damaged, protect surface against corrosion.
Pulling out rear bonded rubber mounting
If the rubber shoulder is not completely removed tool -3372- cannot seat correctly and will fall off.
Pulling out bonded rubber mounting
All bonded rubber mountings on sub-frame are pulled out with the same tool.
Preparing to pull-in subframe mounting
- Install tube -3372- and insert segments -337212-.
Aligning bonded rubber mounting
The bonded rubber mountings must be aligned with a long square tube or a straight-edge.
A 90° - 5°
Only tension sub-frame in a vice using protective clamps!
Pulling in rear bonded rubber mounting
- Coat bonded rubber mounting with e.g. tire assembly paste.
- Pull in mounting -A- until the thrust piece -3372/1- aligns with the upper edge of tool -3372-.
- Take tool -3372- and segments -3372/2- off upward.
Pulling in rear bonded rubber mounting
- Insert segments -3372/2- between bridge -3351/4- and sub-frame.
- Pull mounting -A- in onto stop.
Pulling in front bonded rubber mounting
- Coat bonded rubber mounting with e.g. tyre assembly paste.
- Insert segments -3372/2- in tube -3372-
- Pull in mounting -A- until the thrust piece -3372/1- aligns with the upper edge of tool -3372-.
Continued
- Lift tube -3372- and remove segments -3372/2-.
- Replace bridge -3351/4- with thrust piece -3351/1 and then push mounting in onto stop.