Transmission Cooler: Service and Repair

ATF Pipes and Cooler, Cleaning

Special tools, testers and auxiliary items required

• Oil Collecting and Extracting Device (V.A.G 1782)

• Protective Eyewear

Procedure

Before installing a replacement transmission, always clean out the Automatic Transmission Fluid(ATF) cooler and ATF pipes using compressed air (maximum 10 bar).

- Clean the following connections thoroughly: ATF pipe/transmission, ATF pipe/fluid temperature valve and ATF pipe/ATF cooler.

Wear protective eyewear.

- Place the (V.A.G 1782) under the transmission.





- Remove the bolt - 1 - and the ATF pipes from the fluid temperature valve - 2 -.

- Remove the ATF pipes from/to ATF cooler on the fluid temperature valve - 2 -. Counter-hold at the valve.

- Remove the ATF cooler and drain it. Refer to => [ ATF Pipes and Cooler ] Removal and Replacement.

- Remove the thermostat and clean the ATF cooler and ATF pipes with compressed air or rinse with ATF.

- Remove the bolt - arrow - and pull the ATF pipes out of the transmission.





- Attach a hose to one transmission/thermostat ATF pipe and secure it with a hose clamp. Hang the other end of the hose in a suitable container.

- Clear the ATF pipe with compressed air.

- Connect the hose to the other ATF pipe and repeat the procedure.

- Install the ATF pipes to the ATF cooler. Refer to => [ ATF Pipes and Cooler ] Removal and Replacement.