Transmission Cooler: Service and Repair

Transmission Oil Cooler

Special tools, testers and auxiliary items required

• Hose Clamps up to 25 mm Dia. (3094)

• Torque Wrench (5-50 Nm) (V.A.G 1331)

Removing

- Move the selector lever into the "P" position.

- Remove the battery and the battery tray.

- Place a lint free cloth on the transmission oil cooler and transmission to absorb the leaking coolant.

- Clamp off the coolant hoses using the hose clamps up to 25 mm dia. (3094) and remove the hoses from the cooler.






- Remove the bolts - A - and the transmission oil cooler - B -.






Coolant must not drip into the transmission!

Installing

- Replace the transmission oil cooler O-rings - C -.






- Install the transmission oil cooler - B -, while doing this, pay attention to the O-rings - C -.

- Install and tighten the new bolts - A - to 20 Nm + an additional 90° (1/4) turn.

- Connect the coolant hoses to the transmission oil cooler and remove the hose clamps up to 25 mm dia. (3094).






- Install the battery tray and the battery.

- Check coolant level and fill if necessary. Refer to one of the following:

Gas engines

- After repairing, check the transmission oil level and fill if required. Refer to => [ Transmission Oil Level, Checking and Filling ] Transmission Oil Level, Checking and Filling.

Do not start the engine during coolant level testing if the transmission oil has not been filled yet.