Gear Oil, Draining And Filling

WARNING: This page is about a different variant/trim than selected.

Special tools and workshop equipment required

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

Conditions

Move the vehicle onto a 4-column shop hoist or over a work pit so that it stands horizontal.
The selector level is in "P".
The parking brake button is pressed to activate the electro-mechanical parking brake.
The engine is off.

Gear Oil, Draining

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

-- Remove the nuts -arrows- and remove the right drive axle heat shield.

Fig 1: AWD:

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-- Place the : SMN372500 underneath.

CAUTION:

Risk of Injury to the Eyes and Hands by Escaping Oil.

- Wear protective eyewear.

- Wear acid-resistant safety gloves.

-- Remove the oil drain plug -A-.

Fig 2: Identifying Right Flange Shaft Bolt

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-- Let the gear oil drain.

-- Tighten the oil drain plug -A-.

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

-- If the gear oil level is too low, add bevel box gear oil. Refer to the Parts Information for the correct gear oil.

Gear Oil, Filling

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

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-- Route the hose for the : VAS6291A upward.

-- Install the : VAS6291/3 until it stops.

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

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

Fig 4: Identifying Oil Container On Charging Device F/Haldex 2 Coup. VAS 6291

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-- Attach the oil container -A- to the : VAS6291A .

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

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

Fig 5: Charging Device For Haldex Coupling 2 - Adapter 3 VAS6291/3
Courtesy of AUDI OF AMERICA, LLC

-- Tip the oil container so that any excess oil can flow back into the container.

-- When there is no more oil flowing back, disconnect the charging device by pushing the tab.

-- Remove the : VAS6291/3 .

Assembling

Assembly is performed in the reverse order, while noting the following:

-- Replace the oil filler hole plug.

Tightening Specifications