Front Final Drive Cover O-Ring, Removing And Installing: Procedure

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.

NOTE:

General repair instructions. Refer to GENERAL REPAIR INFORMATION .

Pay attention to clean working conditions for the transmission. Refer to GUIDELINES FOR CLEAN WORKING CONDITIONS .

-- Drain the front final drive gear oil, by opening drain plug -arrow B-.

Fig 1: Identifying Drain Plug From Front Final Drive

GWWA39-10415

Courtesy of AUDI OF AMERICA, LLC

-- Remove the right flange shaft. Refer to Removing .

-- Remove the bolts from the front final drive cover in the following sequence: -11 to 1-.

Fig 2: Front Final Drive Cover - Tightening Specifications And Sequence

GWWA39-10414

Courtesy of AUDI OF AMERICA, LLC

-- Remove the front final drive cover together with the tapered roller bearing outer race and the adjustment shim.

NOTE: The shim must be the correct size and must not be replaced by a shim with a different thickness.

-- Remove the differential -arrow- and secure it from falling.

Fig 3: Identifying Differential, Removal/Installation

GWWA37-10157

Courtesy of AUDI OF AMERICA, LLC

-- Replace the O-ring -arrow-.

Fig 4: Differential Cover O-Ring

GWWA39-0037

Courtesy of AUDI OF AMERICA, LLC

-- Insert the differential into the transmission housing.

If the tapered roller bearing outer race and the shim have fallen out of the front final drive cover:

-- Lubricate the shim and tapered roller bearing outer race with gear oil and insert them into the front final drive cover as far as the stop.

-- Tighten the front final drive cover bolts, refer to Figure.

Fig 5: Front Final Drive Cover - Tightening Specifications And Sequence

GWWA39-10414

Courtesy of AUDI OF AMERICA, LLC

-- Install the right flange shaft. Refer to Installing .

-- Add axle oil to the transmission after repair. Refer to GEAR OIL, DRAINING AND FILLING .