Test Conditions After Opening Cooler Lines
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ATF cooler lines were opened.
For example: when replacing the transmission, changing ATF, changing ATF lines, replacing ATF cooler, replacing ATF thermostat.
- Warm up transmission in lower load range. Switch all transmission ranges several times while doing so.
- Read out the ATF sump temperature using the PIWIS Tester.
- The ATF temperature must be 100 °C (cooling system open).
- Let ATF cool down to approx. 35 °C.
- Selector lever is in position P.
- Press the brake pedal and shift the gear lever slowly through P-R-N-D three times. Hold the selector lever in each position for 2 seconds.
- Test and filling procedure at idle speed with air conditioning switched off.