Shock Absorber Front, Replacing

Shock absorber front, replacement

Special tools:
999 5467 SOCKET 999 5467 Socket
999 5469 SOCKET 999 5469 Socket


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

Removing the spring strut





Remove:
- the wheel
- the anti-roll bar link from the spring strut.

Note! Use a Torx wrench as a counterhold so that the boot is not damaged.

Remove:
- the ABS line from the spring strut.
- The ABS sensor. Hang up the sensor using a piece of wire.




Measure the spring strut position in relation to the stub axle before removal.

Note! The measurements are taken so that the same camber angle can be obtained when installing.

Measure over the stub axle / spring strut at the upper screw as illustrated.
Before measuring clean off any dirt from the measuring surfaces.
Note the measurement.




Remove both the nuts from the screws in the spring strut - wheel spindle.




Remove the two screws for the spring strut wheel spindle.
Secure the wheel spindle with a piece of wire so that it cannot turn outwards when removed from the spring strut.





Remove:
- the three nuts holding the spring strut in the bodywork
- the spring strut.

Removing the shock absorber bearing




Secure the spring strut in a vice.

Remove:
- the nut for the shock absorber bearing. Use socket 999 5467 SOCKET 999 5467 Socket and a 3/8" Torx wrench as a counterhold
- washer
- mounting.

Removing the spring




Take the load off the spring seat.
Use hydraulic tool 951 2911 Hydraulic piston 951 2911 Hydraulic Piston with 951 2914 Claw 951 2914 Claw.

Remove:
- the securing nut on the shock absorber. Use socket 999 5469 SOCKET 999 5469 Socket and a 3/8" Torx wrench as a counterhold
- the spring seat
- the spring
- the rubber bump stop and gaiter.




Check that the spring strut bearing (1), spring seat (2) and rubber bump stop with boot (3) are free of damage. Replace if necessary.

Installing the spring




Compress the new spring to a length of approximately 260 mm. Use hydraulic tool 951 2911 Hydraulic piston 951 2911 Hydraulic Piston with 951 2914 Claw 951 2914 Claw.





Install:
- the bump stop with the boot
- the spring
- the spring seat.
Install the fixing nut. Tighten to 70 Nm. Use socket 999 5469 SOCKET 999 5469 Socket and a 3/8" Torx wrench as a counterhold.
Remove the hydraulic tool.

Installing the shock absorber bearing





Install:
- bearing
- washer
- the nut. Tighten to 70 Nm. Use socket 999 5467 SOCKET 999 5467 Socket and a 3/8" Torx wrench as a counterhold.

Installing the spring strut




Install the spring strut in the bodywork using the new nuts. Tighten to 25 Nm.




Install the spring strut on the stub axle. Use new screws and new nuts.
Adjust the spring strut and stub axle to the measured value.




Tighten to 105 Nm and angle-tighten to 90°. Use protractor 951 2050 BEVEL PROTRACTOR 951 2050 Bevel Protractor.

Install:
- the anti-roll bar link to the spring strut. Use a new nut. Tighten to 50 Nm. Counterhold using a Torx spanner to prevent damage to the boot.
- The ABS sensor. Tighten to 10 Nm.

Note! Ensure that the ABS sensor seat in the stub axle is absolutely clean. Clean the ABS sensor with a soft brush.

Install:
- the ABS sensor cable in the bracket.
- the wheel. See Installing wheels Service and Repair.
Align the wheels. See Wheel alignment, checking / adjusting Service and Repair.