Removing and Installing ATF Thermostat

WM 387519 Removing and installing ATF thermostat








Preliminary work

Preliminary work for ATF thermostat

1. Remove engine guard.

Removing ATF thermostat





Overview of ATF thermostat

1. Disconnect the connection on the charge air cooler. To do this, remove locking clip -1- and pull off the line.





Charge air cooler line

2. Disconnect line on the ambient air valve module -2-. To do this, remove the spring band clamp and pull off the line.
3. Disconnect intake pipe from engine. To do this, remove locking clip -arrow- and pull off the pipe.





Intake pipe

4. Place oil collecting container underneath the vehicle.

Warning
Danger of scalding and chemical burns from hot ATF

- Allow ATF to cool down
- Wear personal protective gear (goggles, gloves)

Information
- Counter when loosening the ATF lines.

Information
- To prevent oil from spreading into the body front section, a material 00000 should be held underneath.

5. Undo ATF line screw connection on cooler side -arrow- at the thermostat.





ATF cooler line at thermostat

6. Unscrew fastening screw -arrow- securing ATF line to thermostat.





ATF line on thermostat

7. Unscrew fastening screw -arrow- securing ATF thermostat to cooler.





ATF thermostat on cooler

Information
- To prevent oil from spreading into the body front section, a material 00000 should be held underneath.

8. Hold shop-made tool (material) 00000 -Figure- under the ATF thermostat.





Discharge chute

9. Disconnect ATF lines from thermostat and drain ATF.
10. Remove thermostat.

Installing ATF thermostat





Overview of ATF cooler

Information
- The sealing rings at the ends of the ATF lines on the transmission and cooler sides must be replaced before installation.

1. Replace sealing rings on the ATF lines and coat with ATF.
2. Connect transmission-side ATF lines to thermostat. Insert the upper line first.
3. Insert ATF cooler lines.
4. Tighten ATF thermostat fastening screw -Arrow- to cooler. - Tightening torque: 3.5 Nm (2.5 ftlb.)





ATF thermostat on cooler

5. Tighten ATF line fastening screw -Arrow- to thermostat. - Tightening torque: 10 Nm (7.5 ftlb.)





ATF line to thermostat

Information
- Counter when fastening the ATF lines.

6. Tighten ATF line screw connection on cooler side -Arrow- at the thermostat. - Tightening torque: 30 Nm (22 ftlb.)





ATF cooler line at thermostat

7. Connect suction line to engine. To do so, insert locking clip -Arrow- and push line on until it engages.





Suction line

8. Connect line of the ambient air valve module -2-. To do so, fit the spring band clamp and connect lead.





Charge air cooler line

9. Insert locking clip -1- on charge air cooler suction line and push line on until it engages.
10. Unscrew ATF control screw -A- and fill in ATF until a constant discharge is visible at the lifting tube.





Check screw and oil drain plug

11. Screw in ATF inspection plug with new sealing ring. - Tightening torque: 70 Nm (52 ftlb.)

Subsequent work

Subsequent work for ATF thermostat

1. Check and if necessary, top up the ATF.
2. Fit engine guard.