Filling and Adjusting

WARNING: This page is about a different car, the 2015 Audi A7 Quattro, 2014 Audi A7 Quattro, 2013 Audi A7, and 2012 Audi A7. However, it is still accessible from the selected car via links, so may be relevant.

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

-- Place the Used Oil Collection and Extraction Unit SMN 372500 under the transmission.

Fig 1: Drain Gear Oil From Transfer Case

Courtesy of AUDI OF AMERICA, LLC

WARNING:

Danger of eye injury.

Wear protective eyewear.

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

-- Install the Adapter VAS 6617/6 with the Adapter VAS 6617/2 in the inspection and fill hole in the transfer case hand-tight.

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

Courtesy of AUDI OF AMERICA, LLC

-- Connect the Pressurized Gearbox Oil Filler Kit VAS 6617 and fill the transfer case with approximately 1 liter of gear oil.

Transmission fluid.

-- Wait five minutes.

NOTE:

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 Adapter VAS 6617/6 from the transmission and let any extra 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.

Fig 3: Drain Gear Oil From Transfer Case

Courtesy of AUDI OF AMERICA, LLC

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