Gear Oil, Draining And Filling

NOTE:

The axle oil in the bevel box must only be drained for a repair. Changing oil is not intended.

Special tools and workshop equipment required

Charging Device for BorgWarner Coupling 2: VAS6291A
Charging Device for BorgWarner Coupling 2 - Adapter 3: VAS6291/3
Used Oil Collection and Extraction Unit: SMN372500
Protective eyewear
Acid-resistant safety gloves

Conditions

Move vehicle onto a 4-column lifting platform or over a work pit so that it stands absolutely horizontal.
The selector level is in "P".
The parking brake button should be activated to close the electro-mechanical parking brake.
The engine is off.

Drain Gear Oil

Fig 1: Locating Noise Insulation

Courtesy of AUDI OF AMERICA, LLC

-- Remove the noise insulation -1-. Refer to NOISE INSULATION, REMOVING AND INSTALLING .

-- If installed remove the bolts -arrows-, and remove the right drive axle heat shield.

Fig 2: Identifying Right Drive Axle Heat Shield

Courtesy of AUDI OF AMERICA, LLC

-- Place the : SMN372500 under the transmission.

WARNING:

Risk of injury due to hot axle oil.

Wear protective eyewear.
Wear acid-resistant safety gloves.

-- Remove the drain plug -A-.

Fig 3: Identifying Right Flange Shaft Bolt

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-- Let the gear oil drain.

-- Tighten the drain plug -A-.

-- Remove the bolt -B- from the oil filler hole.

NOTE:

Ignore -1-.

-- Fill if the axle oil level is too low. For the correct part number. Refer to the Parts Information.

Fill Gear Oil

All precautionary measures and test conditions must be followed.

-- Route the : VAS6291A upward.

Fig 4: Charging Device For Haldex Coupling 2 - Adapter 3 VAS6291/3

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-- Install the : VAS6291/3 until stop.

-- Attach the charging device hose with the : VAS6291/3 .

NOTE:

The hose must not hang through.

-- Check if the valve -arrow- is closed.

Fig 5: Identifying Oil Container On Charging Device F/Haldex 2 Coup. VAS 6291

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-- Install the oil container -A- on the : VAS6291A .

-- Open the valve -arrow- and hold the oil container as illustrated.

When gear oil flows out the : VAS6291/3 , the gear oil level is OK.

Fig 6: Charging Device For Haldex Coupling 2 - Adapter 3 VAS6291/3
Courtesy of AUDI OF AMERICA, LLC

-- Hold the oil container in such a way so that any excess oil flows back into the container.

-- When the oil stops flowing, disconnect the charging device by pushing the tab.

-- Remove the : VAS6291/3 .

-- Install the old bolts for the oil filler hole and loosely tighten.

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

-- Switch off engine and remove oil filler plug.

-- Checking the oil level If applicable, fill the gear oil to the lower edge of the filler hole.

Specified value: axle oil level up to bottom edge of oil filler hole.

Assembling

Assembly is performed in the reverse order of disassembly, noting the following:

NOTE:

Replace the oil filler hole drain plug.

Tightening Specifications:

Bevel box assembly overview. Refer to OVERVIEW - BEVEL BOX .
Driveshaft; assembly overview - driveshaft. Refer to OVERVIEW - DRIVE AXLE .
Noise insulation; assembly overview - noise insulation. Refer to OVERVIEW - NOISE INSULATION .