Checking and Topping Up the ATF

Checking and topping up ATF








Information

Test conditions with cooler lines closed

ATF cooler line was not opened between thermostat and ATF cooler.

For example: changing transmission, replacing sealing ring on transmission, changing ATF filter, general checks.

^ Warm up transmission in lower load range. Switch all transmission ranges several times while doing so.
^ Read out ATF temperature using the PIWIS Tester.
^ ATF temperature: 40°C.
^ Selector lever is in position P.
^ Test and filling process at idle speed.

Test conditions after opening cooler lines

ATF cooler line was opened between thermostat and ATF cooler.

For example: replacing ATF, changing ATF line, changing ATF cooler, changing ATF thermostat.

^ Warm up transmission in lower load range. Switch all transmission ranges several times while doing so.
^ Read out ATF sump temperature using the PIWIS Tester.
^ The ATF temperature must be 90°C (coolant circuit open).
^ Let ATF cool down to 40°C.
^ Selector lever is in position P.
^ Test and filling process at idle speed.

Checking ATF

Information:
^ Always avoid oil leaks after unscrewing the oil inspection plug. This is caused by a certain amount of oil which remains on the screw in the lifting tube.

1. Remove engine guard.
2. Remove cover of ATF pan. To do this, loosen the two fastening screws.





Shield to transmission

Information:
^ Secure vehicle to prevent it rolling away.
^ Vehicle must be horizontal in order to check ATF.

3. Move selector lever to position N and continue the test process at idle speed.

Warning:
Hot fluid
^ Danger of scalding

-> Let the fluid cool down.
-> Wear personal protective gear.

Warning:
Hot fluid
^ Danger of scalding

-> Let the fluid cool down.
-> Wear personal protective gear.

Information:
^ Note the test conditions for the following steps.

Information:
^ Undo oil inspection plug -A- only when temperature reaches 40°C.





Check screw and oil drain plug

4. Unscrew oil inspection plug -A-.





ATF inspection plugs

5. The oil level is correct when oil emerges at the lifting tube. If this is not the case, top up ATF.
6. Screw in oil inspection plug -A-. -> Tightening torque: 70 Nm (52 ftlb.)
7. Install cover of ATF pan. To do this, tighten the two fastening screws. -> Tightening torque: 10 Nm (7.5 ftlb.)





Oil inspection plug and oil drain plug

8. Move selector lever to position P and switch off engine.
9. Fit engine guard.

Topping up ATF

1. Remove engine guard.
2. Remove cover of ATF pan. To do this, loosen the two fastening screws.





Shield to transmission

Information:
^ Secure vehicle to prevent it rolling away.
^ Vehicle must be horizontal in order to check ATF.

3. Start engine, move selector lever to position N and continue at idle speed.

Warning:
Hot fluid
^ Danger of scalding

-> Let the fluid cool down.
-> Wear personal protective gear.

Warning:
Hot fluid
^ Danger of scalding

-> Let the fluid cool down.
-> Wear personal protective gear.

Information:
^ Note the test conditions for the following steps.

Information:
^ Undo oil inspection plug only when temperature reaches 40°C.

4. Unscrew oil inspection plug -A-.





Oil inspection plug and oil drain plug

5. Fill with ATF using material 00000 until oil emerges at the lifting pipe.
6. Screw in oil inspection plug -A-. -> Tightening torque: 70 Nm (52 ftlb.)





Oil inspection plug and oil drain plug

7. Move selector lever to position P and switch off engine.
8. Install cover of ATF pan. To do this, tighten the two fastening screws. -> Tightening torque: 10 Nm (7.5 ftlb.)





Transmission shield

9. Fit engine guard.