Running gear, axles, steering · Steering · Steering rack

Bleeding steering system

Only 6R 2009–2014

  • Raise vehicle until front wheels are free.
  • Remove front left wheel (if not already done).
  • Remove front left wheel housing liner (if not already done) ⇒ General body repairs, exterior; Rep. gr. 66; Wheel housing liner; Removing and installing front wheel housing liner.
  • Check hydraulic fluid level and top up if necessary ⇒ 7.3 Checking hydraulic fluid level of power steering.
  • Start engine and run at idle for about 5 seconds.
  • Switch off engine and check hydraulic fluid level.
  • Repeat procedure.
  • Start engine again and with engine idling, turn steering wheel from lock to lock three times.
  • Switch off engine and check hydraulic fluid level. Top up if necessary.
  • Repeat procedure two times.

Leave engine off for 2 to 3 minutes to allow air bubbles to escape from hydraulic fluid.

  • Lower vehicle.
  • With engine idling, turn steering wheel five times from lock to lock.

The system is bled when no more air bubbles rise into hydraulic fluid reservoir.

  • Once bleeding procedure is complete, screw cap hand tight onto reservoir of motor/pump unit.