ATF Level, Checking, Transmission With Combined Oil System

Special tools and workshop equipment required 

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

Procedure

• 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.

Tip

• 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.

-- Place the Used Oil Collection and Extraction Unit:SMN372500  under the transmission.

Tip

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

-- Remove the fill/check plug -arrow A- from the front final drive.

Fig 1: Identifying Drain Plug From Front Final Drive

Courtesy of AUDI

-- Remove the fill/check plug -arrow A- from the center differential housing.

Fig 2: Drain Gear Oil From Transfer Case

Courtesy of AUDI

• 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:

-- 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.

Fig 3: Drain Gear Oil From Transfer Case

Courtesy of AUDI

-- 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

-- Then fill the front with approximately 1 liter 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.

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

-- Tighten both inspection plugs.

Tightening Specifications

• Refer to OVERVIEW - ATF CIRCUIT, DRAIN AND PLUG