WM, 489055 Replacing Power-Steering Gear: Information

WARNING: This page is about a different car, the 2014 Porsche Cayenne, 2013 Porsche Cayenne, 2012 Porsche Cayenne, and 2011 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.

Installation is performed in reverse order.

Replace fastening screw of steering shaft whenever it has been removed. Ensure it is fitted correctly. Insert fastening screw (in correct position, not from the threaded side).

Always replace O-rings on pressure and intake pipes.

Push on universal joint (steering shaft) in correct position, with steering gear and steering wheel or airbag contact unit (spiral spring) in centre position. When doing this, only place steering transmission screws in position (to facilitate assembly when pushing universal joint on). After the fastening screws on the steering have been tightened, push the universal joint on as far as it will go. When fitted correctly and tension-free, the universal joint may be at a maximum distance -arrows- of 4 mm from the outermost edge of steering gear dust boot.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Replace steering gear fastening screws.

Screw threads must be clean and free of grease.

Ensure that no damage (scoring or similar damage) is caused to the steering rack.

If the tie rods are to be re-used, remove them from the removed steering transmission and fit them on the new steering transmission. Fit new sealing rings -arrow- on the steering gear.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Information

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

The left clamp of the joint boot must be clamped so that the clamp lug -arrow- is in line with the steering pinion.
The right clamp of the joint boot must be clamped so that the clamp lug -arrow- points horizontally with the front axle carrier (suspension subframe) in the direction of travel.
Failure to do this can lead to constrictions on the left-hand side in the vicinity of the feed and return lines and on the right-hand side in the vicinity of the heat shield.

Fit the joint boot (not twisted) and secure with new clamps -arrow- (use > V.A.G 1275A - Hose clip pliers , Workshop Equipment Manual, commercially available tools).

Check the joint boot is not worn (cracks, slots) and that sealing faces are clean.

When fitting the ball joints, ensure that the conical seats are clean. Remove dirt or grease on conical seats, e.g. with a lint-free cloth. Do not use cleaning agent/solvent.

Observe airbag safety instructions

> 69 Safety instructions when working on vehicles with airbag and seat-belt pretensioners.

Install airbag unit for driver

> 695819 Removing and installing driver's airbag unit - section on "INSTALLING "

Observe notes on steering-gear centre position in the section on front track adjustment in Repair Group 44

> 44 Suspension alignment, complete.

Calibrate steering-angle sensor

> 456005 INITIALISING AND CALIBRATING STEERING-ANGLE SENSOR .

Observe correct tightening torques

> 48 Tightening torques for steering.