Removing and Installing Front-Axle Support

Removing and installing front-axle support





Preliminary work

1. Raise the vehicle.
2. Remove front underbody panel.

Removing front-axle support





Mounting for support (cross strut), all

C - Mounting for crash support
H - Mounting for supporting frame
K - Mounting for body
L - Mounting for steering
S - Mounting for front anti-roll-bar mount

1. Detach rear section of front wheel housing liner -1- on both sides.





Removing struts

2. Remove struts -2- on both sides.
3. Unscrew fastening screws for front-axle support -arrows- from the outside inwards.





Fastening screws, front-axle support

4. Remove front-axle support -1-.

Information
PDCC chassis:
* Steel flexi-pipes are particularly sensitive to kinking and crushing.
* Treat the steel flexi-pipes with great care when securing the anti-roll bar.
* Make sure that the steel flexi-pipes are not subject to any mechanical loads during the following operations.

5. Tie anti-roll bar -1- to the body using a suitable piece of wire -2- to prevent any load on the steel flexi-pipes.





Securing anti-roll bar

Installing front-axle support

Information
The anti-roll bar must be positioned before tightening the fastening screws of the anti-roll bar support (=front-axle support) so that the highest point of the anti-roll bar is positioned at a distance from the frame support (not the fold!) of -Y- or -Z-.

The distance is:

For a normal suspension ( -Y- ) -> Control value: 93 mm.





Installation dimension of anti-roll bar

For suspension with PDCC ( -Z- ) -> Control value: 86 mm





Installation dimension of anti-roll bar with PDCC

This ensures that the position of the anti-roll bar in the support corresponds to the normal vehicle position.

WARNING
Wheel bearing housing raised incorrectly
* Risk of squashing
* Risk of damage to components

-> Wear personal protective gear.
-> Do not raise the wheel suspension higher than the normal vehicle position (vehicle resting on wheels).

Information





Dimension X - center of wheel to lower edge of wing (rear axle shown)

* 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 raised with a universal vehicle lift. Dimension -X-, from lower edge of wing to center of axle corresponds to vehicle position. The current height can be found in. Always observe the following points.

Steel springs
* The vehicle position is reached at the front axle by placing the vehicle onto the wheels in a suitable work area (wheel alignment platform, workshop pit).

Air suspension
* The vehicle position is reached at the front axle with air suspension by bleeding the respective air spring using the Porsche System Tester and carefully lifting the respective wheel bearing housing.





Lifting wheel carrier (air suspension)

* Use an intermediate layer (hard rubber)! Do not damage the brake cover plate.
* Screws and nuts are Geomet-coated and must not be greased.
* Grease the toothing of the drive shaft slightly with aluminum paste Optimoly TA.
* Drive shafts must not be left hanging from the joint stop! Tie up.
* Use new screws and lock nuts.
* Use correct tightening torques and torque angles.

1. Raise anti-roll bar using transmission jack and place the bearings into the bearing seats.

WARNING
Wheel bearing housing raised incorrectly
* Risk of squashing
* Risk of damage to components

-> Wear personal protective gear.
-> Do not raise the wheel suspension higher than the normal vehicle position (vehicle resting on wheels).

Information

PDCC chassis:
* Steel flexi-pipes are particularly sensitive to kinking and crushing.
* Treat the steel flexi-pipes with great care when securing the anti-roll bar.
* Make sure that the steel flexi-pipes are not subject to any mechanical loads during the following operations.

2. The front-axle support is installed in reverse order to removal.

Subsequent work

1. Install front underbody panel.