ATF Pump, Deactivating And Draining The Hydraulic Pump Reservoir
WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2020 Audi S4, 2020 Audi A4 allroad, 2020 Audi A4 Quattro, 2020 Audi A4, and 2019 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.
Special tools and workshop equipment required
- Vehicle Diagnostic Tester
WARNING:
The system is under pressure.
The ATF transmission "7-Speed Dual Clutch Transmission 0CJ, 0CK, 0CL" is equipped with an electronic ATF pump and a hydraulic pressure reservoir.
The electronic ATF pump can start up at any time.
The ATF system also remains under pressure with the ignition switched off due to the hydraulic pressure reservoir.
- The electronic ATF pump must be deactivated every time before opening the transmission, and the hydraulic pressure reservoir is drained.
- When the system status is not clear, for example the cause of a faulty transmission control module or transmission is unknown, only loosen the mechatronic bolts to a minimal degree, so that the oil pressure in the pressure reservoir can decrease slowly.
- Disconnect the Transmission Control Module -J217- connector before removing the oil pan.
- Wear protective eyewear.
ATF Pump, Deactivating and Draining the Hydraulic Pump Reservoir
-- Connect the Vehicle Diagnostic Tester with the vehicle and start the Diagnostic mode.
- Select vehicle test
- 02-Transmission electronics, functions
- 02 ATF pressure reduction/Disabling the ATF pump or 02-ATF level → Draining ATF