Transfer Case Gear Oil Filling after Repair

Transfer Case Gear Oil Filling after Repair

Special tools, testers and auxiliary items required

• Oil collecting and extracting device (VAG 1782)

• Protective glasses

• General repair information. Refer to => [ General Repair Information ] General Repair Information.

• Rules of cleanliness for working on transmissions. Refer to => [ Clean Working Conditions ] Clean Working Conditions.

CAUTION!
Do not start or tow vehicle with the self locking center differential removed or when the gear oil has been drained.

Test Conditions

• Gear oil temperature at approximately 20 °C (room temperature).

• The cover was removed from the transfer case and all the gear oil was thereby drained.

Test Sequence

- To ensure the vehicle is absolutely level, use a 4 post hoist or a service pit.

- Place the used oil collection and extraction device (VAG 1782) under the transmission.





CAUTION!
Wear protective glasses.

- Remove the inspection plug - arrow -.

• The engine must not be started and the vehicle must not be towed if there is no gear oil in the transmission!

- Slowly and evenly fill the transfer case with gear oil over a period of at least 5 minutes.

• A filling time of at least 5 minutes is required so that the internal oil level between the self locking center differential and the oil fill space can equalize.

• The inspection plug with seal must be replaced.

- Tighten the new inspection plug to 35 Nm.

• It is not necessary to check the oil level again at this stage.