Gear Oil, Draining And Filling

Special tools and workshop equipment required 

• Used Oil Collection and Extraction Unit:SMN372500 
• Charging Device for AWD Clutch Coupling 2:VAS6291A 
• Charging Device for AWD Clutch Coupling 2 - Adapter 2:VAS6291/2 
• Not illustrated: Torque Wrench 1331 5-50Nm:VAG1331 

Requirements

• Wear protective eyewear.
• The vehicle must be level.

-- Lift the vehicle with all four lifting points of the hoist at the same height.

-- Remove the noise insulation. Refer to OVERVIEW - NOISE INSULATION .

-- If equipped, remove the right drive axle heat shield from the bevel box. Refer to DRIVESHAFT, REMOVING AND INSTALLING .

-- Place the :SMN372500  under the transmission.

Fig 1: Fluid Filler Plug - Tightening Specifications

Courtesy of AUDI

-- Remove the oil drain plug -2- and drain the gear oil.

-- Install the new oil drain plug.

-- Tighten the bolt to the tightening specification. Refer to Fig 3.

-- Remove the oil filler hole plug -1-.

-- Install :VAS6291/2  -A- until it stops.

Fig 2: Identifying Adapter & Elbow

Courtesy of AUDI

-- Lock the elbow -B- with the adapter -A-.

-- Fill the gear oil.

• When the bevel box is filled correctly, oil escapes at adapter -A-.
• If the oil still does not leak out, repeat the filling procedure.

-- After filling correctly, remove the :VAS6291/2  .

-- Install the old oil filler plug and lightly tighten it.

-- Start the engine, engage a gear and let the transmission turn for approximately two minutes.

-- Switch off the engine and remove the oil filler hole plug.

-- Check the oil level and fill again with oil up to the lower edge of the filler hole.

-- Install a new oil filler plug.

-- Tighten the bolt to the tightening specification. Refer to Fig 3.

-- Carefully remove leaking oil from the bevel box.

-- Install the heat shield above the right drive axle, if equipped. Refer to DRIVE AXLE, REMOVING AND INSTALLING .

-- Install the noise insulation. Refer to OVERVIEW - NOISE INSULATION .

Tightening Specifications:

Fig 3: Fluid Filler Plug - Tightening Specifications

Courtesy of AUDI