Center Differential Housing, Installed Transmission and Attached Driveshaft

Center Differential Housing, Installed Transmission and Attached Driveshaft

Special tools, testers and auxiliary items required

• Oil Collecting and Extracting Device (V.A.G 1782)

• Engine-/Gearbox Jack (V.A.G 1383 A)

• Gearbox Support (T10337)

• Sealant, refer to the Parts Catalog

Removing

• Check the vehicle data label or the designation on the rear final drive itself to determine which one is installed in the vehicle. Then select the correct rear final drive repair manual.

- Remove the driveshaft (attached).

- Mount the (T10337) on the (V.A.G 1383 A) and attach it to the bottom of the transmission mount.






- Lift the transmission slightly using the (V.A.G 1383 A).

There is the risk of an accident.

• The (V.A.G 1383 A) may only be used during assembly and must not sit unsupervised under the vehicle.

- Remove the bolts from the tunnel crossmember - arrows -.






- Lower the transmission to dimension - a - using the (V.A.G 1383 A).






• Dimension - a - = maximum 100 mm.

- Remove the nuts - arrow - and the tunnel crossmember.






- Place the (V.A.G 1782) under the transmission.






- Remove the bolts - 1 through 4 - and carefully remove the center differential housing. The transmission fluid (MTF) will leak out while doing this.

Danger of damaging the center differential.

• Carefully and slowly pull the center differential housing off of the transmission toward the rear. Otherwise the center differential can fall out of the transmission.

• A center differential that has fallen out may not be installed.

If the gear carrier - 1 - remains in the center differential housing, proceed as follows:






Danger of damaging the sealing surface on the center differential housing.

• Use a hammer to hit the housing carefully on several places.

- Hold the gear carrier - 1 - by one of the side ribs with pliers and remove it in - arrow A -.

- Using a rubber hammer, tap the housing on alternating sides - arrows B -.

Installing

Install in reverse order of removal. Note the following:

• Replace the bolts for the center differential housing.

- Clean both housing separating surfaces thoroughly. They must be free of oil and grease.

- Apply a bead sealant - arrow 1 - evenly and not too thick on the housing surfaces; sealant, refer to the Parts Catalog.






- Place a sealing ring round each bolt hole to prevent contact corrosion - arrow 2 -.

- Coat the gear carrier surfaces with transmission fluid (MTF).

- Coat both outer ring surfaces on the gear carrier slightly with transmission fluid (MTF).






- Insert the gear carrier.

• Installed position: The tab on the gear carrier - arrow A - must fit into the opening in the transmission housing - arrow B -.

- Place the center differential - 2 - on the transmission - 1 -.






- Mount the guide sleeve - 4 - on the center differential.

- Install the pressure spring - 3 - into the center differential.

- Press the center differential housing centrally on until it makes contact with the transmission housing and hold it securely.






- Install the tunnel crossmember and tighten it. Refer to => [ Tunnel Crossmember, Transmission Mount and Transmission Support Overview ] Tunnel Crossmember, Transmission Mount and Transmission Support Overview.






• Check the vehicle data label or the designation on the rear final drive itself to determine which one is installed in the vehicle. Then select the correct rear final drive repair manual.

- Install the driveshaft.

- => [ Manual Transmission Fluid, Filling ] Manual Transmission Fluid, Filling.

- Install the exhaust system free of tension.

- Install the subframe crossbrace.

- Install the noise insulation.