Gear Oil, Draining And Filling, Transfer Case, Transmission With Separated Oil System

Special tools and workshop equipment required 

• Scissor Lift Table - Audi Set - Support Tapers:VAS6131/10-3  from the Scissor Lift Table - Audi Set:VAS6131/10 
• Scissor Lift Table - A6 Set - Adapters:VAS6131/12-1  from Scissor Lift Table - A6 Set:VAS6131/12 
• Used Oil Collection and Extraction Unit:SMN372500 
• Pressurized Gearbox Oil Filler Kit:VAS6617 
• Pressurized Gearbox Oil Filler Kit:VAS6617/2 
• Pressurized Gearbox Oil Filler Kit - Adapter 6:VAS6617/6 
• Engine and Gearbox Jack:VAS6931 
• Tensioning Strap:T10038  , (For Q5)
• Engine/Gearbox Jack - Gearbox Support:T10337 

Engine/Gearbox Jack - Gearbox Support:T10337  Preparing

Fig 1: Identifying Engine/Gearbox Jack - Gearbox Support T10337

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-- Remove the rubber pad -1- from the :T10337  .

-- If this is unsuccessful, drill a 10.2 mm diameter hole in the center -arrow-.

-- In the hole cut M12 threads.

Requirements:

• General repair instructions. Refer to GENERAL REPAIR INFORMATION .
• Guidelines for clean working conditions. Refer to GUIDELINES FOR CLEAN WORKING CONDITIONS .
• Follow all applicable disposal regulations.
• Replace the drain plug with the gasket.
• Replace the plug for the inspection and fill hole.

• The engine is off.
• Move the vehicle onto a 4-column workshop hoist or over a work pit so it is completely level.
• Transmission is in "P".
• The parking brake button is pressed to activate the electro-mechanical parking brake.

Draining

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

• Rear noise insulation, A4/A5
• Rear and center noise insulation, Q5

-- Tighten the :VAS6131/10-3  to the :T10337  .

-- Place the :VAS6931  as shown on the transmission mount.

-- Slightly lift the transmission with the engine and transmission jack.

A4/A5:

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-- Remove the bolts -arrows- and nuts -1-, and place the tunnel crossmember on the :T10337  .

Q5:

Fig 2: Identifying Bolts

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-- Remove the left and right bolts -arrows- for the front muffler/front exhaust pipe / EGR pipe.

-- Loosen the left and right clamping sleeve -arrow- and slide toward the rear.

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-- Push the clamping sleeves toward the rear, lower the front muffler slightly and tie up with the :T10038  as shown.

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-- Remove the bolts -arrows-, and place the tunnel crossmember on the :T10337  .

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All Vehicles:

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-- Place the :SMN372500  under the transmission.

-- Remove the drain plug -arrow B- and drain the transmission fluid.

-- Tighten the new drain plug -arrow B-.

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

-- Install the parking lock emergency release cable. Refer to PARKING LOCK EMERGENCY RELEASE CABLE, REMOVING AND INSTALLING .

Filling and Adjusting

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

-- Place the :SMN372500  under the transmission.

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

-- Install the :VAS6617/6  with the :VAS6617/2  in the inspection and fill hole in the transfer case hand-tight.

Fig 3: Installing Adapter VAS 6617/6 & Adapter VAS 6617/2 In Inspection & Fill Hole In Transfer Case

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-- Connect the :VAS6617  and fill the transfer case with approximately 1 liter (1 qt) of gear oil.

• Transmission fluid. Refer to the appropriate Parts Information.

-- Wait five minutes.

• 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 :VAS6617/6  from the transmission and let any extra gear oil drain out.

• Specified value: The level is correct when the transmission fluid comes up to the bottom edge of oil filler hole. Fill the gear oil once more if necessary.

-- Tighten the new drain plug -arrow A- for the center differential housing.

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

Tightening Specifications

• Drain and plug. Refer to COMPONENT LOCATION OVERVIEW - DRAIN AND CHECK PLUGS .
• Refer to OVERVIEW - NOISE INSULATION .