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

Special tools and workshop equipment required 

• Used Oil Collection and Extraction Unit:SMN372500 
• Pressurized Gearbox Oil Filler Kit:VAS6617 
• Protective Eyewear
• Protective gloves

Draining

• 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.

• 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.

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

-- Place the :SMN372500  under the transmission.

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-- To catch escaping gear oil place multiple cloths around the tunnel crossmember.

-- Remove the drain plug -2- and drain the transmission fluid.

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

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

Filling and Adjusting

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

-- Place the :SMN372500  under the transmission.

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-- Remove the drain plug -1- 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 1: 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 of gear oil.

• Transmission fluid. Refer to the 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 -1- for the center differential housing.

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Tip:

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

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

Tightening Specifications

• Refer to Drain and Plug