Crossmember

Removing and Installing Rear Axle Crossmember

Removal





1. Lift the vehicle. When lifting, ensure that the fastening screws (C) of the right and left diagonal braces (B) are still accessible.





2. Remove underbody cover at rear (No. 5).





3. Undo the fastening screw (C) and the collar nuts (D) and remove the diagonal brace (B) together with the holder (E).
4. If the diagonal brace is to be replaced, detach the holder from the diagonal brace and fit it on the new brace.

Note The right and left-hand diagonal braces are identical parts.





5. Remove the sheetmetal brace (A).
To do this, unscrew the nuts and screws and pull the sheetmetal brace downward.
6. Detach the cable (C) on the rear-axle cross member.
7. Detach stabilizer mount on stabilizer. Counter with an open-ended wrench when doing this.
Remove stabilizer support from the stabilizer and take out the stabilizer.
8. Remove the exhaust system.





9. On vehicles with automatic headlight beam adjustment, remove the angle (C) sensor located on the left side of the vehicle.
To do this, disconnect the plug for the angle sensor and remove the holder (B) with the angle sensor (C).





10. Detach the rear-axle cross member on the right and left sides (two screws per side/arrows) and remove.

Installation
1. Install in reverse order. Before installing, visually inspect all parts. Make sure the rear-axle cross member is installed in the correct position (welded seam to the front).
2. Replace fastening nuts. Use correct tightening torques.
3. On vehicles with automatic headlight beam adjustment, fit the angle sensor (C) in the correct position on the left side of the vehicle.
In the correct position means:
The angle sensor holder (B) must be properly seated at the lower side on the rear-axle cross member (A) when the screw connection is tightened.





Note After installation, the HBA control module must be calibrated with the Porsche System Tester (see HBT in Diagnosis/troubleshooting HBA, Serv. No. 94 92, Calibration menu).
Then check the adjustment of the main headlights and readjust them if necessary.

4. Carry out suspension alignment.

Note Suspension alignment is necessary because the rear-axle wheel alignment values might be out of tolerance after removal and installation of the rear-axle cross member.