Installing Drive Shaft

Information 

Replace circlip on the drive shaft and shaft sealing ring in the final drive

> Refer to the appropriate service information

Make sure no: to damage the sealing ring when guiding the drive shaft into the final drive.

• The inner end of the drive shaft must be held with both hands at the joint and inserted into the rear axle differential with a quick jerk. The outer joint must be held by a second mechanic in order to prevent damage.
• Check that the joint is seated correctly in the rear axle differential: Hold the joint with both hands and pull outwards.
• Visually check that " the plastic protective rings are flush on the rear axle differential.

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Dimension 1 - centre of wheel to lower edge of wing (rear axle shown)

Information 

• All screws and threaded joints on the axle must be tightened in vehicle position. Vehicle position means: vehicle standing on its wheels or the wheel suspension is raised with a universal vehicle lift. Measurement -1-  from the lower edge of the wing to the middle of the vehicle axle corresponds to vehicle position. The current height values can be found in

  > 4495TW ADJUSTMENT VALUES FOR SUSPENSION ALIGNMENT

  Always observe the following points! 

• On vehicles with air springs, the respective air spring must be bled using the Porsche System Tester. 

  > WM, 4301IN BLEEDING AND FILLING THE LEVELLING SYSTEM

• Screws and nuts are Geomet-coated and must not be greased. 

Information 

The pictures shown in this document may differ from the original.

1. Grease the splines with a little Optimoly TA aluminium paste and fit the drive shaft -1-  into the wheel bearing housing -2-  (-A-  ). When doing this, press the inner joint together fully.

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   Inserting drive shaft into wheel bearing housing

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   Fitting tool T10206 (shown as an example)

   Information 

   • Pull in the drive shaft as far as it will go using the > T10206 - fitting tool  .
2. Pull the drive shaft into the wheel bearing housing.
3. Grease mounting-face ring of axle nut with a little Optimoly TA aluminium paste. Fit the axle nut.
4. After you have pulled the drive shaft into the wheel bearing housing, it still needs to be pre-tightened to the specified tightening torque.

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   Pulling in drive shaft

   1. 4.1  Tighten the drive shaft, in the 1st step "before installation" to > Tightening torque 130 Nm (95.9 ftlb.)  --.

      To do this, place the wheel bearing housing with the drive shaft and tool on the floor (do not damage the brake cover plate) and pull in the drive shaft. A second mechanic is required! -arrow- 

   2. 4.2  The second tightening step is performed when the wheel bearing housing is installed in the section on "Subsequent work".
5. Left side: Replace the plastic protective ring on the transmission side, which you broke off during removal.
6. Use a new sealing ring in the rear axle differential and a new protective ring and circle/ip on the drive shaft.
7. Fit the wheel bearing housing (second mechanic required). First, fit the drive shaft on the rear axle differential housing with a quick, strong tap.

   To make installation easier, raise the wheel carrier slightly with a universal jack! Use a rubber base to prevent the wheel carrier from slipping! > Lifting wheel bearing housing (example) 

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   Lifting wheel bearing housing (example)

8. Fit screws -1, 2-  on the inside of the two upper wishbones.

   Upper trailing arm (front) to wheel bearing housing: > Initial tightening 150 Nm (110.6 ftlb.)  -- > Final tightening + 90° --

   Upper trailing arm (rear) to wheel bearing housing: > Initial tightening 150 Nm (110.6 ftlb.)  -- > Final tightening + 90° --

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   Threaded joint on inner wishbones

9. Fit lower trailing arm -2-  on the wheel bearing housing -1-  .

   > 421119 Removing and installing lower trailing arm - section on "INSTALLING "

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   Screws on lower trailing arm

10. Fit the tie rod (toe control arm) on the wheel bearing housing.

    > WM, 420919 REMOVING AND INSTALLING REAR TIE ROD (TOE CONTROL ARM)  - section on "installing"

    > 4X00IN TIGHTENING TORQUES FOR REAR AXLE

11. Fit spring strut on wheel bearing housing.

    > 427119 Removing and installing rear spring strut (steel springs) - section on "INSTALLING "

    > 4X00IN TIGHTENING TORQUES FOR FRONT AXLE

12. Fit the brake disc if necessary.

    > 465319 Removing and installing rear brake disc - section on "INSTALLING "

    Fit brake calliper.

    > 474119 Removing and installing rear brake calliper - section on "INSTALLING "

13. Plug in the central connector -1-  for the ABS wire harness -A-  and lock it -a-. 

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    Central connector for wheel bearing housing, ABS wire harness

14. Clip the mounting -2-  for the ABS wire harness into the position designed for it -3-  on the body -B-  .