Hydraulic Fluid Tank: Service and Repair

23 42 011 - Replacing expansion tank GS6S37BZ (SMG)

Important!
Before working on hydraulic system:
- Reduce pressure in hydraulic system by means of Service Function in DIS Tester
- Disconnect hydraulic pump relay Service and Repair in electronics box
Do not reconnect relay for entire duration of repair work

Note:
After completing work:
- Check fluid level in hydraulic system Service and Repair by means of DIS Tester "Service Function"
- Perform "Teach in transmission" service function by means of DIS Tester

Necessary preliminary tasks:
- Remove assembly underside protection (E60 only).

Release nuts and remove heat shield (1).
Tightening torque 23 41 14AZ [1][2]Automatically Shifted Manual Transmission/Transaxle.

Release screw (1).
Tightening torque 23 41 7AZ [1][2]Automatically Shifted Manual Transmission/Transaxle.

Installation Note:
Make sure retainer (2) for heat shield is correctly positioned.

Release stud bolt (1) and screw (2).
Tightening torque 23 41 7AZ [1][2]Automatically Shifted Manual Transmission/Transaxle.
Remove expansion tank in direction of arrow.

Installation Note:
Replace sealing ring.
Moisten sealing ring (1) with Pentosin and push onto tank fitting.