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Checking and topping up the ATF The transmission must not be in the reduced driving program. The ATF temperature must be between → ATF and → ATF temperature: 40 degrees Celsius . An ATF inspection when the temperature is too high causes insufficient filling, while an inspection when the temperature is too low Note The ATF temperature at the start of testing must not be higher than → ATF temperature: 40 gradCelsius . 1. Connect the PIWIS Tester 97180 and call up the ATF temperature. 2. Put selector lever in position "P", start vehicle, and allow engine to idle. 3. Top up ATF via the charging valve until ATF runs out at the control bore. 4. With the brake pedal pressed, change through all selector lever positions, remaining in each position for approximately → Time: 10 s . WARNING Danger of scalding and chemical burns from hot ATF → Allow ATF to cool down → Wear personal protective gear (goggles, gloves) 5. Top up with ATF again via the charging valve until ATF runs out at the control bore. Reworking 1. Unscrew connection hose 95071 from ATF - charging valve. 2. Replace sealing ring for cap nut and screw on cap nut. → Tightening torque: 30 ftlb. 3. Replace sealing ring for ATF control screw and screw in ATF control screw. → Tightening torque: 16 ftlb. 4. Fit underbody panels. → 519419 Removing and installing rear trim - 5. Lower the vehicle. 997110, 997111, 997120, 997121, 997310, 997311, 997320, 997321, 997410, 997411, 997430, 997431, Diagnostic system: reading out fault memory and activating systems Checking and topping up the ATF 1045 |