Pinion Seal Final Drive, Replacing

Pinion seal final drive, replacing

Special tools:
999 7023 Extractor pinion seal Haldex coupling 999 7023 Extractor Pinion Seal Haldex Coupling
999 7024 Drift pinion seal Haldex coupling 999 7024 Drift Pinion Seal Haldex Coupling

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 Active on Demand Coupling
Remove the Active on Demand Coupling. See Clutch (AOC), replacing, M58, M66 AWD, AW50/51 AWD Clutch (AOC), Replacing.

Removing the pinion seal




The seal consists of two parts.
Use extractor 999 7023 Extractor pinion seal Haldex coupling 999 7023 Extractor Pinion Seal Haldex Coupling.

Note! The screw and inner socket in the extractor must be unscrewed when tapping on the extractor.

Tap the tool onto the seal so that the flat end is against the seal. Tighten the inner socket. Counter hold the outer part at the same time so that the tool expands against the seal.
Remove the seals using the screw in the extractor.
Check that no seal residue is left in the final drive.
If the inner part of the seal remains in place, tap in the extractor again and pull out the inner part.

Note! Do not knock in the extractor too hard. This can damage in the extractor, which in turn can scratch the mating surface on the pinion shaft.

Check that no seal residue is left in the final drive.

Installation

Installing the pinion seal




The seal consists of 2 sections but is installed as one unit.
Lubricate the lip of the seal using oil for the Active on Demand Coupling, P/N 116 1641 (1 liter pack).
Use drift 999 7024 Drift pinion seal Haldex coupling 999 7024 Drift Pinion Seal Haldex Coupling for installation. Position the section of the seal with the largest outer diameter against the drift. Tap in the seal until the head of the drift is against the final drive housing.
Install the Active on Demand coupling. Fill with oil and check the level. See Clutch (AOC), replacing, M58, M66 AWD, AW50/51 AWD Clutch (AOC), Replacing.

Refilling the oil in the final drive housing
Top up the oil in the final drive and check the level. See Final drive, replacing, M58, M66 AWD, AW50/51 AWD Final Drive, Replacing.

Installing the exhaust system
Install the exhaust system. See Final drive, replacing, M58, M66 AWD, AW50/51 AWD Final Drive, Replacing.