Thermostat: Service and Repair
Removing and installing ATF thermostatTools
Preliminary work for ATF thermostat
1. Remove engine guard .
Removing ATF thermostat
Overview of ATF thermostat
Charge air cooler line
1. Disconnect the connection on the charge air cooler. To do this, remove locking clip -1- and pull off the line.
2. Disconnect line of the ambient air valve module -2-. To do this, remove the spring band clamp and pull off the line.
Suction line
3. Disconnect suction line from engine. To do this, remove locking clip -arrow- and pull off the line.
4. Place oil collecting container underneath the vehicle.
ATF cooler line at thermostat
WARNING: Danger of scalding and chemical burns from hot ATF
-> Allow ATF to cool down
-> Wear personal protective gear (goggles, gloves)
Note: Counter when loosening the ATF lines.
Note: To prevent oil from spreading into the body front section, a material discharge chute 00000 should be held underneath.
5. Undo ATF line screw connection on cooler side -arrow- at the thermostat.
ATF line to thermostat
6. Unscrew ATF line fastening screw -arrow- to thermostat
7. Unscrew ATF thermostat fastening screw -arrow- to cooler. ATF thermostat on cooler
Discharge chute
Note: To prevent oil from spreading into the body front section, a material discharge chute 00000 should be held underneath.
8. Hold shop-made tool (material) discharge chute 00000-figure under ATF thermostat.
9. Disconnect ATF lines from thermostat and drain off ATF.
10. Remove thermostat.
Removing ATF thermostat
Overview of ATF thermostat
1. Place oil collecting container underneath the vehicle.
ATF cooler line at thermostat
WARNING: Danger of scalding and chemical burns from hot ATF
-> Allow ATF to cool down
-> Wear personal protective gear (goggles, gloves)
Note: Counter when loosening the ATF lines.
Note: To prevent oil from spreading into the body front section, a material discharge chute 00000 should be held underneath.
2. Undo ATF line screw connection on cooler side -Arrow- at the thermostat.
ATF line to thermostat
3. Unscrew ATF line fastening screw -Arrow- to thermostat
ATF thermostat on cooler
4. Unscrew ATF thermostat fastening screw -Arrow- to cooler.
Discharge chute
Note: To prevent oil from spreading into the body front section, a material discharge chute 00000 should be held underneath.
5. Hold shop-made tool (material) discharge chute 00000-figure under ATF thermostat.
6. Disconnect ATF lines from thermostat and drain off ATF.
7. Remove thermostat.
Installing ATF thermostat
Overview of ATF cooler
Note: 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.
ATF thermostat on cooler
4. Tighten ATF thermostat fastening screw -arrow- to cooler. Tightening torque 2.5 ft. lbs.
ATF line to thermostat
5. Tighten ATF line fastening screw -arrow- to thermostat. Tightening torque 7.5 ft. lbs.
ATF cooler line at thermostat
Note: Counter when fastening the ATF lines.
6. Tighten ATF line screw connection on cooler side -arrow- at the thermostat. Tightening torque 22 ft. lbs.
Suction line
7. Connect suction line to engine. To do so, insert locking clip -arrow- and push line on until it engages.
Charge air cooler line
8. Connect line of the ambient air valve module -2-. To do so, fit the spring band clamp and connect lead.
9. Insert locking clip -1- on charge air cooler suction line and push line on until it engages.
Check screw and oil drain plug
10. Unscrew ATF control screw -A- and fill in ATF until a constant discharge is visible at the lifting tube.
11. Screw in ATF inspection plug with new sealing ring. Tightening torque 52 ft. lbs.
Installing ATF thermostat
Overview of ATF thermostat
Note: 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 2.5 ft. lbs.
ATF thermostat on cooler
5. Tighten ATF line fastening screw -Arrow- to thermostat. Tightening torque 7.5 ft. lbs.
ATF line to thermostat
Note: Counter when fastening the ATF lines.
6. Tighten ATF line screw connection on cooler side -Arrow- at the thermostat. Tightening torque 22 ft. lbs.
ATF cooler lines at thermostat
Disconnecting ambient air valve
7. Insert locking clip -1- on charge air cooler suction line and push line on until it engages.
Check screw and oil drain plug
8. Unscrew ATF control screw -A- and fill in ATF until a constant discharge is visible at the lifting tube.
9. Screw in ATF inspection plug -A- with new sealing ring. Tightening torque 52 ft. lbs.
Subsequent work for ATF thermostat
1. Check and if necessary, top up the ATF.
2. Fit engine guard.