Gear Oil, Draining And Filling, Front Final Drive, Transmission With Separated Oil System

WARNING: This page is about a different car, the 2023 Audi SQ8, 2023 Audi RS Q8, and 2023 Audi Q8. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

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

Draining

The engine is off.
Move the vehicle onto a four-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.

NOTE:

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 center or rear noise insulation. Refer to NOISE INSULATION .

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

Fig 1: Identifying Drain Plug From Front Final Drive

Courtesy of AUDI

WARNING:

Danger of eye injury.

Wear protective eyewear.

-- Remove the drain plug -arrow B- from the front final drive and drain the transmission fluid.

CAUTION:

Risk of damaging the transmission.

Do not start the engine if there is no gear oil in the front final drive.

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

Filling and Adjusting

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

-- Place the :SMN372500 under the transmission.

Fig 2: Identifying Drain Plug From Front Final Drive

Courtesy of AUDI

WARNING:

Danger of eye injury.

Wear protective eyewear.

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

-- Install the :VAS6617/6 with the :VAS6617/2 in the inspection and fill hole in the front final drive.

Fig 3: Installing Adapter VAS 6617/6 & Adapter VAS 6617/2 Into Transmission Hand-Tight

Courtesy of AUDI

-- Connect the Pressurized Gearbox Oil Filler Kit:VAS6617 .

-- Fill the front final drive with approximately 1.0 liters of gear oil.

Transmission fluid. Refer to the appropriate Parts Information.

-- Wait five minutes.

NOTE:

A waiting time of at least five minutes is required so that the internal oil level between the differential and oil fill space can equalize.

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

-- Tighten the new fill/check plug -arrow A- for the front final drive.

Fig 4: Identifying Drain Plug From Front Final Drive

Courtesy of AUDI

NOTE:

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

-- Thoroughly clean the subframe crossbrace.

Tightening Specifications

Refer to OVERVIEW - ATF CIRCUIT, DRAIN AND PLUG
Refer to OVERVIEW - NOISE INSULATION .