With Automatic Transmission (Tiptronic)
Removal
1. Remove rear wheel, engine guard from engine / transmission and rear underside panel.
2. Loosen drive shaft from wheel.
- When doing so, also apply the brakes.
NOTE:
- As considerable force is needed to move the drive shaft in the teeth of the wheel hub, loosen the drive shaft using a copper drift.
- With unfavorable tolerances, it may be necessary to push the drive shaft out of the hub using a wheel hub puller (e.g. a Klann or Schrem tool).
- On the 911 Turbo, a ventilation tube is inserted in the joint on the wheel.
- To prevent damage to the ventilation pipe when pressing the drive shaft out of the wheel hub, insert a pressure piece, e.g. VW 295A, between the puller spindle and the drive shaft.
- At this stage, it is not yet possible to pull the drive shaft out completely.
3. Remove cover from control arm 1 & 5 (unclip).
- Remove heating pipe.
NOTE:
- Before removing the right drive shaft, disconnect holder from oil line (M6 screw) on transmission
- Pull oil line slightly down when removing and inserting drive shaft.
4. Release fastening screws of connector unit / grounding cable and speed sensor from wheel carrier (arrow).
- Unclip lines from wheel carrier (No. 1) and parking brake cable.
- Remove speed sensor.
5. Remove brake caliper from wheel carrier and hang it up in wheel arch.
6. Disconnect stabilizer mount from stabilizer (holding open jaw wrench against bolt).
- Remove stabilizer clamp.
NOTE:
- The stabilizer mount must remain attached to the spring strut.
- The stabilizer must not be removed.
7. Dismantle parking brake cable as follows:
- Remove cassette box and trim panel above parking brake lever.
- Loosen and completely unscrew lock nut and adjustment nut (No. 1) from arm (No. 2).
- Remove safety clip (No. 3) from support pin (No. 4) of parking brake lever and remove support pin.
- Remove parking brake lever (with arm)
- Unhook tab washer (No. 5) for parking brake cables from retaining lug (No. 6) - at top and bottom.
- Unhook appropriate parking brake cable and pull it out of the guide from the back.
8. Remove control arm 2 (toe control arm).
CAUTION:
- Before loosening the bolts, mark the position of eccentric bolt A for installation, so that a complete measurement of vehicle alignment is not necessary.
- When loosening the ball joint, hold a Torx screwdriver (special tool 9546) against the wheel carrier.
NOTE: If necessary for removing control arm 2 from the wheel carrier / spring strut eye, lift the wheel carrier slightly using a universal jack.
9. Disconnect control arm 1 & 5 from subframe (internal connection / 2 screws).
10. Unscrew pan head screws of drive shaft from transmission flange.
NOTE: To prevent damage to the drive shaft, place a protective tube on the drive shaft.
11. Mount a suitable lever on the wheel hub.
- Using the lever, lift the wheel carrier and swing it out at the bottom.
- Pull out the drive shaft in this position (2nd mechanic required).
- Depending on tolerances, it may also be necessary to turn the wheel carrier in the direction of toe-in with the lever.
Installation
1. To install the drive shaft, proceed in reverse order.
- Carry out a visual inspection of all parts before starting installation.
- Grease the drive shaft teeth with Optimoly HT.
- First step: Insert the drive shaft.
2. Check thread condition and grade of eccentric bolt.
- Required grade 10.9 (grade first used 8.8 check spare parts catalog).
- The grade is shown on the bolt head.
- If thread is damaged or bolt is grade 8.8, use new eccentric bolt.
- In this case, transfer position mark from old eccentric bolt to new bolt.
3. Do not grease Dacromet bolting (aluminum appearance).
- Observe torque specifications.
CAUTION: Before tightening bolting on subframe, see step 4 below.
4. Tighten bolts in area A (eccentric bolt) and bolt of control arm 5 once reference position has been established.
- Reference position = Control arm 2 and the rear cross member must form a horizontal line.
- To establish reference position, lift wheel carrier with universal jack.
NOTE: The bolts mentioned above can also be tightened when the vehicle is on its wheels and has been pushed up and down about 25 mm a few times.
5. Install parking brake cable and adjust parking brake.
- Install brake caliper.
6. Tighten drive shaft on transmission flange and wheel hub.
- Use new fastening nut.
7. Install cover of control arm 1 & 5 and the underside guards and panels.
NOTE: If drive shafts are installed and removed in accordance with these instructions, alignment measurements are not necessary as there are only minor changes in wheel alignment. The max. change in toe-in per rear wheel is 5'.