Repair Information

Repair Information

When installing waxed components, contact surfaces must be cleaned. Contact surfaces must be free of wax and grease.

Tightening specifications for unlubricated bolts and nuts are given.

Always replace self-locking nuts and bolts.

Always replace the bolts and nuts, which are tightened with an additional tightening angle.

Welding or straightening operations are not permitted on load-bearing or wheel-controlling components.

When loosening, removing or installing hydraulic, pneumatic or electrical line, always make a sketch or take a picture. Doing so records the original installation locations.

If the cable ties, brackets or mounting elements were removed during the repair procedure, they must be installed at their original location.

Vehicles without a drive axle must not be moved, otherwise the wheel bearing will be damaged. If vehicle does have to be moved, always note the following points:

- Install an outer joint in place of the drive axle.

- Tighten the threaded connection between the drive axle and the wheel hub to 200 Nm.

Bonded rubber bushings can only be turned to a limited extent. Only tighten threaded connections on components with a bonded rubber bushing if vehicle is in curb weight position or control position.

• Refer to => [ Wheel Bearing, with Coil Spring, Lifting into Curb Weight Position ] Description and Operation.

• Refer to => [ Wheel Bearing, with Air Suspension, Lifting to Curb Weight Position ] Rear Suspension.

An AWD subframe is installed for hybrid vehicles. For the correct allocation, refer to the Parts Catalog. Performing repairs on the subframe is not affected.

• If the vehicle must still have an axle alignment, only tighten the bolts and nuts that were loosened when making adjustments to the tightening specification. Tighten the bolts and nuts to the specified additional tightening angle after the alignment/adjustment is complete.

All bolts and nuts must be tightened properly before driving the vehicle!

Danger of personal injury caused by the engine starting automatically on vehicles with the Start/Stop System.

• When the Start/Stop System is on (recognizable by a message in the instrument cluster), the engine may start automatically.

• Make sure the Start/Stop System is off whenever working on the vehicle. Turn off the ignition and turn it back on only when necessary.