Pinion Seal Coupling (AOC), Replacing

Pinion seal coupling (AOC), replacing

Special tools:
999 5069 EXTRACTOR 999 5069 Extractor
999 5652 Counterh. 999 5652 Counterh.
999 5893 Puller 999 5893 Puller
999 7025 Drift Haldex coupling 999 7025 Drift Haldex Coupling
999 7058 Adapter 999 7058 Adapter

Note! As the illustrations in this service information are used for different model years and / or models, some variation may occur. However, the essential information is always correct.

Removal

Removing the exhaust system and the propeller shaft
Remove the exhaust system and the propeller shaft. See Final drive, replacing, B5254T2, AW50/51 AWD Final Drive, Replacing.

Removing the flange




Remove the nut for the flange. Use counterhold 999 5652 Counterh. 999 5652 Counterh. and adapter 999 7058 Adapter 999 7058 Adapter. Mark the flange in relation to the end of the shaft.
Position a container underneath the Active on Demand Coupling.




Remove the flange. If the flange is stuck, use puller 999 5893 Puller 999 5893 Puller.





Note! For cars with a vibration damper on the Active on Demand Coupling flange. Use 55 mm long screws for the puller. The oil pump may be damaged if too long screws are used.

Check that the mating surface on the flange is not damaged. If necessary replace the flange.

Removing the seal




Remove the seal from the Active on Demand Coupling. Use extractor 999 5069 EXTRACTOR 999 5069 Extractor.
Check thoroughly that no seal residue remains.

Installation

Installing the seal




Lubricate the new seal using oil for the Active on Demand Coupling, P/N 116 1641 (1 liter pack).
Use drift 999 7025 Drift Haldex coupling 999 7025 Drift Haldex Coupling for installation. Tap the seal into place until the surface of the drift is against the housing for Active on Demand Coupling.

Installing the flange




Install the flange on the AOC (Active on Demand Coupling) using the previous markings (if using the old flange).
Install a new nut for the shaft and flange. Use counterhold 999 5652 Counterh. 999 5652 Counterh. with adapter 999 7058 Adapter 999 7058 Adapter.
Tighten the nut. Tightening Torque.
Fill the AOC (Active on Demand Coupling) with oil. Check the oil level. See Clutch (AOC), replacing, B5254T2, AW50/51 AWD Clutch (AOC), Replacing.

Installing the propeller shaft and the exhaust system
Install the propeller shaft and the exhaust system. See Final drive, replacing, B5254T2, AW50/51 AWD Final Drive, Replacing.