Installing Lower Trailing Arm

WARNING: This page is about a different variant/trim than selected.

WARNING: Wheel bearing housing raised incorrectly

Risk of crushing
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

The pictures shown in this document may differ from the original.

Information

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Dimension 1 - centre of wheel to lower edge of wing (rear axle shown)

All screws and threaded joints on the axle must be tightened in vehicle position. Vehicle position means: vehicle standing on its wheels or the wheel suspension is raised with a universal vehicle lift. Measurement -1- from the lower edge of the wing to the middle of the vehicle axle corresponds to vehicle position. The current height values can be found in
> 4495TW ADJUSTMENT VALUES FOR SUSPENSION ALIGNMENT

. Always observe the following points!
On vehicles with air springs, the respective air spring must be bled using the Porsche System Tester.
> WM, 4301IN BLEEDING AND FILLING THE LEVELLING SYSTEM
Screws and nuts are Geomet-coated and must not be greased.

Use a > 9546 - screwdriver to counter when tightening the ball joints if necessary.
Carefully insert the pin for the ball joint into the wheel bearing housing and fit the lock nut. > Tightening torque 130 (96 ftlb.)Nm --

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Removing ball joint
Press the trailing arm into the mounting points on the chassis subframe -A- .

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Removing trailing arm
Fit eccentric screws -1- .
1. 4.1 Carefully lift the wheel bearing housing using a suitable lift so that the dust bellows on the steering is not damaged by the eccentric screws -1- .
2. 4.2 Position eccentric screws -1- so that the markings -A, B- are aligned.
3. 4.3 Tighten lock nuts. > Tightening torque 170 (126 ftlb.) Nm --
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Marking on eccentric screws
Use a suitable jack to raise the trailing arm and remove > VW552 - Spring tensioner-1- from the upper trailing arm -2- .

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Securing upper trailing arm
Lift the trailing arm -1- as far as required using a suitable jack -4- until the fastening screw -2- slides easily through the spring strut -3- and trailing arm -1- .

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Spring strut threaded joint
Fit the fastening screw -2- for the spring strut -3- and trailing arm -2- . > Initial tightening 150 (111 ftlb.) Nm -- > Final tightening + 90° --