Components

Components

Rear Final Drive

• When replacing the rear final drive, check the oil level in the Haldex clutch and the oil level in the rear final drive, fill if necessary.

• Passat, refer to => [ Code Letters, Transmission Allocation and Capacities ] Code Letters, Transmission Allocation and Capacities.

• CC, refer to => [ Code Letters, Transmission Allocation and Capacities ] Code Letters, Transmission Allocation and Capacities.

• Tiguan, refer to => [ Code Letters, Transmission Allocation and Capacities ] Code Letters, Transmission Allocation and Capacities.

• Clean the contact surfaces when installing the brackets as well as any waxed components. Contact surfaces must be free of grease and wax.

Guided Fault Finding, OBD and Test Instruments

• Before servicing the Haldex clutch, the malfunction cause must be determined as closely as possible via the vehicle diagnosis, testing and information system (VAS 5051) in the operating modes "Guided Fault Finding", "vehicle self-diagnosis" and "test instruments".

O-rings, Gaskets and Seals

• O-rings, gaskets and seals must be replaced.

• Always clean the separation surfaces.

prior to installing:

• Before installing the radial shaft seal, lightly lubricate the outer circumference and fill the space between the sealing lips - arrow - halfway with sealing grease for seal (G 052 128 A1).






• Before installing the flange shaft/driveshaft radial shaft seals, lightly lubricate the outer circumference and the space between the sealing lips with high performance gear oil for Haldex clutch (G 052 175 A1).

• The open side of the seal point toward the fluid to be sealed.

after installing:

• Check the oil level in the rear final drive, add oil if necessary. Refer to the following:

Tiguan and CC, refer to => [ Rear Final Drive Oil Level, Checking or Adding ] Rear Final Drive Oil Level, Checking or Adding.

• Check the oil level in the Haldex clutch, add oil if necessary. Refer to the following:

Tiguan and CC, refer to => [ Haldex Clutch Oil Level, Checking or Adding ] Haldex Clutch Oil Level, Checking or Adding.

Fasteners

• Do not overstretch the circlips.

• Always replace damaged or stretched circlips.

• The circlips must fit completely inside the groove.

• Replace the roll pins. Installed position: The slit - A - should be in line with the line of force - arrow -.






Bolts and Nuts

• Always loosen or tighten bolts and nuts for covers and housings diagonally.

• Parts which are particularly sensitive to distortion must be kept straight when removing and installing; loosen or tighten diagonally and in stages.

• The tightening specifications apply to non-lubricated nuts and bolts.

• Always replace self-locking nuts and bolts.

• Only wax all the contact surfaces on the threaded connection bolts and nuts after installing.

Bearings

• Install needle bearings with the lettered side (thicker metal) facing the installation tool.

• Insert all the bearings in the final drive with gear oil.

• Replace all the tapered roller bearings that are on the same shaft. Use tapered roller bearings from the same manufacturer.

• Heat the inner races to approximately 100 °C (212 °F) before installing

• Do not interchange outer and inner bearing races with those from other bearing of the same size. The bearings are paired.

Adjusting Shims

• Measure the adjusting shims at several locations with a micrometer. Tolerance variations make it possible to find the exact shim thickness required.

• Check for burrs and damage.

• Only install perfect shims.