Steering Control Module: Service and Repair

Servo motor with control module, removing and installing





Special tools, testers and auxiliary items required
^ Holding Fixture VW 313
^ Thrust piece 3253/6 qty. 2
^ Torque Wrench 5-50 Nm V.A.G 1331
^ Transmission holder T10108
^ 2 bolts M10 x 60

Removing
- Remove steering gear.
- Clean steering gear in area of servo motor with control module.





- Tension steering gear using 2 bolts M 10 x 60 as depicted in the illustration.
- Remove hydraulic thrust piece.
- Rotate steering gear in mounting bracket so that steering pinion points upward.





- Disconnect harness connector of sensor wire at Power Steering Control Module J500.
- To do so, press button - A - in direction of - arrow - and then disconnect connector.





- Unscrew mounting bolts - 1 - and remove servo motor with control module from steering gear housing.

Note:
^ When unscrewing bolts, secure servo motor with control module from falling down (with second mechanic if necessary).
^ If corrosion, damage, wear-out or first signs of soiling on steering rack can be seen, complete steering gear must be replaced.
^ If no grease film is visible on steering rack, steering gear must also be replaced completely.
^ The steering gear housing has 3 or 4 bores and also servo motors with 3 or 4 threads. Note the corresponding threaded connection. Three threaded connections are permitted when only 3 threaded connections are possible in a steering gear housing or in a servo motor.

Installing
- Pull a new sealing ring on to servo motor with control module.

Before installing, pinion and new sealing ring for servo motor must be coated with grease G 052 192 A1 supplied in the repair set.

CAUTION: Do not use other grease under any circumstances.





- Insert servo motor with control module into steering gear housing and tighten in diagonal sequence with new bolts - 1 -.
- Connect harness connector of sensor wire to Power Steering Control Module J500.

Connector must engage audibly.

- Install new hydraulic thrust piece.

Replacement part set contains a new hydraulic thrust piece among other items.

- Install steering gear.
- Align vehicle.
- Perform basic setting for Steering Angle Sensor G85 via Vehicle Diagnosis, Testing Info. System VAS 5051, "Guided Fault Finding".
- Then perform basic setting of steering system via Vehicle Diagnosis, Testing Info. System VAS 5051B "Guided Fault Finding".