Gear Oil, Draining And Filling

Special tools and workshop equipment required

Pressurized Gearbox Oil Filler Kit:VAS6617

Fig 1: Gearbox Oil Filler Kit VAS6617
Courtesy of AUDI
Used Oil Collection and Extraction Unit:SMN372500

Fig 2: Identifying Used Oil Collection And Extraction Unit
Courtesy of AUDI
Protective Eyewear

Draining

Gear oil temperature: approximately 20 °C (68 °F) (room temperature).
The engine must be switched off when working.
Move the vehicle onto a four-column workshop hoist or over a work pit so it is completely level.
The transmission must be still for at least 15 minutes to make sure the oil settles internally.
Transmission in "P".
The parking brake button is pressed to activate the electro-mechanical parking brake.
Tightening specification Refer to OVERVIEW - FINAL DRIVE .

NOTE:

Pay attention to the general repair information. Refer to GENERAL REPAIR INFORMATION .

Pay attention to clean working conditions for the transmission. Refer to GUIDELINES FOR CLEAN WORKING CONDITIONS .

Follow the disposal requirements.

Replace the ATF drain plug and seal.

Replace the plug for the ATF check and fill hole.

-- Remove the tunnel crossmember. Refer to TUNNEL CROSSMEMBER, REMOVING AND INSTALLING .

-- Place the Used Oil Collection and Extraction Unit:SMN372500 under the transmission.

WARNING:

Danger of eye injury.

Wear protective eyewear.

-- Remove the drain plug -arrow B- from the front final drive and drain the transmission fluid.

Fig 3: Identifying Drain Plug From Front Final Drive

Courtesy of AUDI

-- Tighten the new drain plug on the front final drive -arrow B-.

-- Remove the drain plug -arrow B- from the center differential housing and drain the transmission fluid.

Fig 4: Drain Gear Oil From Transfer Case

Courtesy of AUDI

-- Tighten the new drain plug on the center differential housing -arrow B-.

Filling and Adjusting

Gear oil temperature: approximately 20 °C (68 °F) (room temperature).

-- Place the Used Oil Collection and Extraction Unit:SMN372500 under the transmission.

-- Remove the plug -arrow A- from the front final drive.

Fig 5: Identifying Drain Plug From Front Final Drive

Courtesy of AUDI

-- Install the Pressurized Gearbox Oil Filler - Adapter 6:VAS6617/6 with Pressurized Gearbox Oil Filler - Adapter 2:VAS6617/2 in the front final drive inspection hole hand tight and fill the front final drive with approximately 1.0 liters of gear oil.

Fig 6: Installing Adapter VAS 6617/6 & Adapter VAS 6617/2 Into Transmission Hand-Tight

Courtesy of AUDI

Transmission fluid. Refer to the appropriate Electronic Parts Information.

-- Wait five minutes.

NOTE:

A waiting time of at least five minutes is required so that the internal oil level between the differential and oil fill space can equalize.

-- Remove the Pressurized Gearbox Oil Filler - Adapter 6:VAS6617/6 from the transmission and let any extra gear oil drain out.

-- Install the old plug.

-- Remove the drain plug -arrow A- from the center differential housing.

Fig 7: Drain Gear Oil From Transfer Case

Courtesy of AUDI

-- Install the Pressurized Gearbox Oil Filler - Adapter 6:VAS6617/6 with Pressurized Gearbox Oil Filler - Adapter 2:VAS6617/2 in the transfer case inspection hole -arrow A- hand tight and fill the transfer case with approximately 1.0 liters of gear oil.

Fig 8: Installing Adapter VAS 6617/6 & Adapter VAS 6617/2 In Inspection & Fill Hole In Transfer Case

Courtesy of AUDI

Transmission fluid. Refer to the appropriate Electronic Parts Information.

-- Wait five minutes.

NOTE:

The inside of the transfer case is divided into several oil chambers. The chambers must be filled equally.

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

-- Remove the Pressurized Gearbox Oil Filler - Adapter 6:VAS6617/6 from the transmission and let any extra gear oil drain out.

-- Install the old plug.

-- Install tunnel crossmember. Refer to TUNNEL CROSSMEMBER, REMOVING AND INSTALLING .

-- Perform a road test for 10 to 15 minutes.

NOTE:

The fluid distributes evenly during the road test.

-- Check the gear oil level and fill. Refer to ATF LEVEL, CHECKING, TRANSMISSION WITH COMBINED OIL SYSTEM .