Transmission Cooler: Service and Repair

17 21 010 - Removing and installing/replacing transmission oil cooler (GS7S47BG SMG)





Important!
It is essential to adhere to the exact filling capacities specified.
Fill transmission at room temperature only (approx. 20 - 30 °C).
Refer to Transmission oil replacement Service and Repair.
Gear oil:
refer to BMW Service Operating Fluids.
Failure to comply with this instruction will result in serious damage to the transmission.





Recycling:
Catch and dispose of gear oil with suitable equipment.
Observe country-specific waste-disposal regulations.





Necessary preliminary tasks:
- Unscrew and remove splash guard.
- Remove reinforcement plate Service and Repair
Important notes on installation are described in this work step
- Remove heat shields
- Drain transmission oil





Disconnect connector (1).





Release union nut (1).
Tightening torque 23 41 19AZ External Gearshift Components.
Remove oil cooler connection (2).
Tightening torque 23 41 20AZ External Gearshift Components.





Release banjo bolt (1).

Installation Note:
Replace banjo bolt with seal.
Tightening torque 23 41 18AZ External Gearshift Components.





Release screw (1). Remove gear oil cooler in direction of arrow.
Tightening torque 23 41 16AZ External Gearshift Components.





Installation Note:
Journal (1) on gear oil cooler must be secured in rubber grommet (2).