ATF Level, Checking, Transmission With Combined Oil System

Special tools and workshop equipment required 

• 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 

Requirements:

• Pay attention to the general repair information. Refer to GENERAL REPAIR INFORMATION .
• Pay attention to clean working conditions for the transmission. Refer to GUIDELINES FOR CLEAN WORKING CONDITIONS .
• Follow the disposal requirements.
• Replace the ATF drain plug and seal.
• Replace the plug for the ATF check and fill hole.

• Gear oil temperature: approximately 20 °C (68 °F) (room temperature).
• The engine must be switched off when working.
• Move the vehicle onto a four-column workshop hoist or over a work pit so it is completely level.
• The transmission must be still for at least 15 minutes to make sure the oil settles internally.
• Transmission in "P".
• The parking brake button is pressed to activate the electro-mechanical parking brake.

Procedure

Fig 1: Identifying Drain Plug From Front Final Drive

Courtesy of AUDI OF AMERICA, LLC

-- Place the :SMN372500  under the transmission.

-- Place a cloth over the tunnel crossmember to prevent axle oil from getting into the cast pockets on the top.

-- Remove the drain plug -arrow A- from the front final drive.

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

Fig 2: Drain Gear Oil From Transfer Case

Courtesy of AUDI OF AMERICA, LLC

• Specified value: The fluid level is correct, when the front final drive and the rear transfer case if filled up to the lower edge of the filler hole.

If the oil level is not at the lower edge of the oil filler hole:

Fig 3: Drain Gear Oil From Transfer Case

Courtesy of AUDI OF AMERICA, LLC

-- Install the :VAS6617/6  with :VAS6617/2  in the transfer case check hole -arrow A- hand tight and fill up to the lower edge of the check hole with gear oil. Do not close the inspection hole. Transmission fluid. Refer to the appropriate Parts Information.

-- Install the :VAS6617/6  with :VAS6617/2  in the front final drive check hole hand tight and fill up to the lower edge of the check hole with gear oil.

Fig 4: Installing Adapter VAS 6617/6 & Adapter VAS 6617/2 Into Transmission Hand-Tight

Courtesy of AUDI OF AMERICA, LLC

-- Then fill the front with approximately 1 liter (1 qt) axle oil.

-- Wait the equivalent time, until axle oil flows out of the rear transfer case inspection hole.

-- Immediately after oil flows out, close the rear transfer case inspection hole.

• Through overfilling the transmission fluid flows between the inner oil level from the front final drive to the rear transfer case.

-- Remove the :VAS6617/6  from the transmission and let any extra gear oil on the front final drive drain out.

-- Tighten both inspection plugs. Refer to COMPONENT LOCATION OVERVIEW - DRAIN AND CHECK PLUGS .