Driveshaft

Driveshaft

• Perform work on the driveshaft on a twin post hoist if possible.

• Mark the position of all the parts to each other before removing them. Install in the same position otherwise the imbalance will be excessive and the bearings could get damaged causing rumbling noises.

• Do not kink the driveshaft, only store and move it when fully extended.

• Do not allow the driveshaft to "hang down" during removal. Always support it.

• Always remove or install the driveshaft horizontally with respect to the drive flange.

Special tools, testers and auxiliary items required

• Torque Wrench (40-200 Nm) (V.A.G 1332)

• Engine-/Gearbox Jack (V.A.G 1383 A)

• Counterhold Tool (T10172)

Removing

- Remove the noise insulation.

- Remove the pendulum support bolts - 1 and 2 -.






- Press the "engine and transmission" forward and secure the position with a suitable piece of wood - A -.






- Support the front part of the exhaust system using the engine-/gearbox jack (V.A.G 1383 A).

- Disconnect the exhaust system at the clamping sleeve - arrows - and remove the rear exhaust system.






- Remove the tunnel brace.

- Loosen the intermediate bearing bolts - arrows - 2 turns.






- Loosen but do not remove the front and rear driveshaft flexible disc bolts.

- Counter hold the rear final drive to loosen and tighten the driveshaft flexible disc bolts.






So that noises due to imbalance do not occur later:

- If no marks - arrows - are present, mark the position of the driveshaft flexible disc with respect to the input flange on the final drive.






- Also mark the position of the driveshaft flexible disc with respect to the output flange on the bevel box.

- Remove the driveshaft flexible disc from the rear final drive and lower it onto the engine-/gearbox jack (V.A.G 1383 A).

- When removing and installing the driveshaft, be careful not to damage the seal - arrow -.






• Two technicians are needed to remove the driveshaft.

- Unbolt the driveshaft flexible disc from the bevel box.


To prevent damaging the protective boot in the center bearing, remove and install the driveshaft in its fully extended position; likewise, store it in this position.

- Unbolt the center bearing and if possible, remove it to the rear in its fully extended length.

Installing

Install in the reverse order of removal. Note the following:

- Install all parts marked to each other in original positions.

- Tighten the driveshaft flexible disc to output/input flange bolts. Tightening specifications => [ Driveshaft Overview ] Driveshaft Overview.



- Secure the pendulum support with new bolts.






- Install the exhaust system.

- Install the noise insulation.

- Install the tunnel brace.