Installing Steering Gear

WARNING: Steering-angle sensor not calibrated or calibrated incorrectly

Unexpected vehicle handling
Steering-angle sensor does not function
Malfunction in steering-angle sensor

→ After working on wheel suspension parts, when replacing the steering-angle sensor and after changing the wheel alignment values, calibrate the steering-angle sensor using PIWIS Tester II 9818.

→ Keep the front wheels in straight-ahead position on the measuring platform during calibration.

→ On vehicles with electromechanical steering, also re-teach the electric steering lock settings.

Information

When topping up or filling in Pentosin, make sure that it does not come into contact with the coolant hoses. To avoid overflow caused by overfilling, observe the instructions . → WM 4800IN TEST AND ASSEMBLY WORK ON POWER STEERING (ALL MODELS)
If coolant hoses come into contact with Pentosin, clean them thoroughly with water IMMEDIATELY!
Replace visibly swollen coolant hoses.

Fig 1: Identifying Steering Gear

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

After fitting the pressure lines, fill steering hydraulics with Pentosin CHF 202 and bleed the steering. → WM 4800IN TEST AND ASSEMBLY WORK ON POWER STEERING (ALL MODELS)

Replace all elastic bolts and lock nuts.

Tighten all threaded connections to the specified tightening torques → WM 4800TW TIGHTENING TORQUES FOR STEERING (ALL MODELS) .

Check and/or adjust toe-in → WM 449503 Suspension alignment, complete .

Calibrate steering-angle sensor → 456019 INSTALLING AND REMOVING STEERING-ANGLE SENSOR .