ATF Pump, Deactivating And Draining The Hydraulic Pump Reservoir

The system is under pressure.

The "7-Speed Dual Clutch Transmission" 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.
• Release and disconnect the Transmission Control Module -J217- connector before removing the oil pan.
• Wear protective eyewear.
• Wear safety gloves.