Installing Front-Axle Carrier

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CAUTION: Heavy components

Risk of squashing
→ Wear personal protective gear.

→ Get someone to help if necessary.

Information

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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.

Position the -Front-axle carrier- on the mounting frame.

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Front-axle carrier
Position the lifting platform -1- on the markings -A- .

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Position of lifting platform
Position the front-axle carrier with steering, final drive and anti-roll bar back in its original, marked installation position and be careful not to damage adjacent parts.
Tighten the four fastening screws -arrows- .
Threaded connection securing chassis subframe to body (front): > Initial tightening 120 (89 ftlb.) Nm -- > Final tightening + 180° --

Threaded connection securing chassis subframe to body (rear): > Initial tightening 120 (89 ftlb.) Nm -- > Final tightening + 180° --

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Fastening screws on front-axle carrier
Remove the lifting platform with assembly frame.
Fit connecting link -2- on the anti-roll bar -3- and tighten the fastening screw. > Tightening torque 110 (81.5 ftlb.) Nm --

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Press the lower trailing arm into the mounting points on the front-axle carrier -A- .

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Removing trailing arm
Fit eccentric screws -1- .

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Marking on eccentric screws
1. 8.1 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. 8.2 Position eccentric screws -1- so that the markings -A, B- are aligned.
3. 8.3 Tighten lock nuts. > Tightening torque 170 (126 ftlb.) Nm --
Tighten fastening screws -1 securing drive shaft to transmission.
Observe specified tightening torque:

The following applies for fastening screw M8 x 48: > Initial tightening 20 (15 ftlb.) Nm -- > Final tightening + 90° --

The following applies for fastening screw M10 x 52: > Initial tightening 50 (37 ftlb.) Nm -- > Final tightening +90° --

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Sewers securing drive shaft to transmission
Fit the steering column at the steering gear.
> 481519 REMOVING AND INSTALLING STEERING COLUMN

Use a new clamping screw.

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Installing steering column
1. 10.1 Press the steering column -2- onto the steering gear -3- (-A- ).
2. 10.2 Insert a new clamping screw -1- and tighten without tension. > Initial tightening 20 (15 ftlb.) Nm -- > Final tightening + 90° --
Position hydraulic line (intake pipe) -2- and fit the clamp -1- .

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Front left hydraulic line
For vehicles with "DGC (Porsche Dynamic Chassis Control - anti-roll stabilization):
Route hydraulic line -1- (pressure line) without tension and fit it on the steering gear -2- . > Tightening torque 32 (24 ftlb.) Nm +/- 4 (3 ftlb.) Nm --

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Hydraulic line at steering gear (with PDCC)
For vehicles with PDCC (Porsche Dynamic Chassis Control - anti-roll stabilization):
Fit lines -1,_3- at the flow divider -2- and at the front right side member.

Cap screws on flow divider: > Tightening torque 28 Nm (20.7 ftlb.) +/- 4 Nm (3 ftlb.) --

Banjo bolt on flow divider: > Tightening torque 20 Nm (14.8 ftlb.) + 45° --

Cap screws: > Tightening torque 28 Nm (20.7 ftlb.) +/- 4 Nm (3 ftlb.) --

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Lines at the flow divider and side member (with PDCC)
For vehicles with PDCC (Porsche Dynamic Chassis Control - anti-roll stabilization):
Fit lines -1, 2- at the connection point and valve block.

Cap screw: > Tightening torque 28 Nm (20.7 ftlb.) +/- 4 Nm (3 ftlb.) --

Line to valve block: > Tightening torque 28 Nm (20.7 ftlb.) --

Line to valve block: > Tightening torque 28 Nm (20.7 ftlb.) --

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Lines at the connection point and valve block (with PDCC)
For vehicles without PDCC (Porsche Dynamic Chassis Control - anti-roll stabilization):
Fit hydraulic line -1- (pressure line) at the steering gear -2- . > Tightening torque 32 (24 ftlb.) Nm +/- 4 (3 ftlb.) Nm --

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Hydraulic line at steering gear (without PDCC)
For vehicles without PDCC (Porsche Dynamic Chassis Control - anti-roll stabilization):
Fit holder -1- on final drive.

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Pressure line at steering gear (without PDCC)
For vehicles without PDCC (Porsche Dynamic Chassis Control - anti-roll stabilization):
Replace tie-wrap -2- and fit pressure line on steering gear.
Position heat shield -2- on the steering gear and tighten fastening screws. > Tightening torque 9 (6.5 ftlb.)
Nm. --

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Heat shield for steering gear
Fit the tie rod on the wheel bearing housing.
> 487919 REMOVING AND INSTALLING TIE ROD
> VW552 - Spring tensioner-1- can now be removed from the upper trailing arm -2- .

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Securing upper trailing arm