Front Suspension

WM 401519 Removing and installing top axle strut - Steel spring








Preliminary work

Remove the wheel.

Tools

Trailing arm tools





-A- - press-out tool T10187 - to press out the ball joint on the wheel carrier.

-B- - spring compressor VW 552 - for slightly tensioning the upper trailing arm.

Removing upper axle strut

Removing upper trailing arm

Caution:
Increased risk of accidents if the wheel carrier is raised improperly!
- Injuries and material damage are possible.

- Do not raise the wheel suspension higher than the normal vehicle position (vehicle resting on wheels).
- When raising the suspension, use a suitable intermediate layer (hard rubber).
- Do not damage the brake cover plate.

1. Unscrew plastic nuts -arrows- on front wheel housing liner.





2. Fix upper axle strut with spring compressor VW 552. This involves tensioning axle strut slightly because top ball joint can otherwise get damaged. When doing this, the -Spring compressor- is pushed through the hole in the axle strut, engaged in the upper opening of the wheel well (double panel) and in the axle strut and tightened with the nut. This is only necessary if the same control arm is reinstalled.





3. Unlock plug from HBA -A- and remove -arrow-.





4. Release fastening nut and press ball joint rod off with the press-out tool T10187.





5. Remove spring strut.
6. Unscrew fastening screws at the sides and remove axle strut.
7. If control arm does not have to be used again, HBA sensor must be fitted on new control arm.

Installing upper axle strut

Installing upper trailing arm

Caution:
Increased risk of accidents if the wheel carrier is raised improperly!
- Injuries and material damage are possible.

- Do not raise the wheel suspension higher than the normal vehicle position (vehicle resting on wheels).
- When raising the suspension, use a suitable intermediate layer (hard rubber).
- Do not damage the brake cover plate.

Information
- The entire threaded parts of the axle must be tightened in vehicle position. Vehicle position means: vehicle standing on the wheels, or the wheel suspension is being raised with a universal vehicle lift. -Dimension X-, from - Control value: 502 mm ±10 mm corresponds to the vehicle position.








- Use an intermediate layer (hard rubber). Do not damage the brake cover plate.
- Screws are Dacromet-coated and must not be greased.
- Grease the toothing of the drive shaft slightly with aluminium paste Optimoly TA.
- Do not leave drive shafts hanging from the joint stop. Support wheel carriers.
- Use new screws and fastening nuts.
- Make sure the bevel pinions from the ball joints, are clean. Clean with a lint-free cloth as necessary. Do not use cleaning agent.
- Observe correct tightening torques.

1. Install HBA sensor and tighten at tightening torque.
2. Insert upper trailing arm and fastening bolts. Fit lock nuts and tighten to specified tightening torque.
3. Install spring strut.
4. Insert wheel carrier in the ball joint, fit lock nuts, and tighten to specified tightening torque.
5. Attach HBA connector.
6. Tighten plastic nuts -arrow- on front wheel housing liner.





Subsequent work

Subsequent work for trailing arm

Fit the wheel and tighten to specified tightening torque.