Replacing the Drive Shaft/Drive Shaft Seal
Replacing the drive shaft/drive shaft sealWhen replacing the drive shafts and drive shaft seals, see Half shaft seal rear final drive housing, replacing.
Installation
Note: To ensure that there is no exhaust leakage, see Flanged joint, assembling.
Preparations for the installation of the final drive
Lift the final drive together with the drive shafts so that the center of the drive shaft is slightly below the center of the wheel bearing housings.
Apply rust-proofing agent to the ends of the drive shafts.
Press out one of the wheel bearing housings.
Align the drive shaft in the hub.
Then align the other side.
Lift a little more and connect the bleed hose to the nipple on the final drive housing. Check that the hose is secured to the rear axle member by the tie strap and that it is not kinked.
Installing the final drive
Press the final drive up against the rear axle member. Align all screws.
Lightly tighten the screws alternately.
Tighten the 8 screws for the cover.
Tighten the M12 screw for the front bushing in the final drive housing.
Remove the jack.
Connect the connector to the wiring harness for the Active On-demand Coupling.
Installing the anti-roll bar on the rear axle member (both sides)
Install 2 x M12 new lock nuts. Tighten.
Note: Ensure that the cable for the parking brake passes above the ends of the anti-roll bar. Press the cables into place in the mountings on the heat deflector plate.
Installing control arms and track rods (both sides)
Raise the wheel bearing housing so that the hole for the control arm in the bearing housing and rear axle member is horizontal.
Install
- the control arm with new M12 screws. Tighten
- the tie rod to the wheel bearing housing. Use new lock nuts, M12. Tighten
- the parking brake cable in the bracket on the tie rod and in its mountings in the lower cover. Tighten.
Installing shock absorbers, lateral links and anti-roll bar links (both sides)
Press the control arm downwards when the shock absorber is being installed. Use a crow bar.
Install
- the shock absorbers on the control arms. Do not tighten the screw
- the screw for the lateral link/wheel bearing housing. Do not tighten the screw
- the link to the anti-roll bar on both sides. Use a new nut. Tighten.
Caution: For certain versions, remove the levers for the level sensor from the control arm(s).
Note: The level sensor may be on the right or left-hand side.
Installing the propeller shaft
Install the propeller shaft using the marking made earlier.
Check carefully that the mating surfaces on the propeller shaft and flange are clean.
Use new screws when installing the propeller shaft. First tighten the screws that are opposite each other. Then tighten all screws crosswise. Use counterhold 999 7057.
Install
- the 4 x M8 screws for the support for the center bearing on the car body. Tighten
- the 2 x M8 screws for the propeller shaft center bearing. Tighten.
For cars with a vibration damper on the Active On-demand Coupling flange
Use counterhold 951 2940.
Install
- the 4 x M8 screws for the support for the center bearing on the car body. Tighten
- the 2 x M8 screws for the propeller shaft center bearing. Tighten.
Filling and checking the oil in the final drive
Fill the final drive with oil. Check the oil level. P/N 116 1620-8 (1 liter container)
Tighten the level plug. Volume approximately 0.7 l.
Filling and checking the oil in the Active On-demand Coupling
Fill the AOC (Active On-demand Coupling) with oil. Check the oil level. P/N 116 1641 (0.3 liter container)
Tighten the level plug. Volume approximately 0.8 l.
Installing the rear section of the exhaust system
Install
- the mountings for the exhaust system in the rear axle member, M8
- the exhaust system to the front exhaust pipe/three-way catalytic converter (TWC). Use a new gasket and new nuts, M8
- the mountings in the rear axle member and body.
Installing the rear wheels. Tightening shock absorbers and lateral links
Install
- the M10 screws for the drive shafts on both sides. Use new screws. Tighten
- the rear wheels.
Position the car on a wheel track hoist.
Tighten the M12 screws for the shock absorbers and torque rods on both sides.
Install the protective covers over the shock absorber mounting.
Note: Check and adjust the rear wheel alignment if necessary.