O-Ring On Front Final Drive Cover, Removing And Installing

• General repair instructions. Refer to GENERAL REPAIR INFORMATION .
• Guidelines for clean working conditions. Refer to GUIDELINES FOR CLEAN WORKING CONDITIONS .

Procedure

-- Drain the gear oil from front final drive. Refer to GEAR OIL, DRAINING AND FILLING .

-- Remove the right flange shaft. Refer to RIGHT FLANGE SHAFT, REMOVING AND INSTALLING .

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

Fig 1: Front Final Drive Cover - Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

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

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

-- Replace the O-ring -arrow-.

Fig 2: Differential Cover O-Ring

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.

Fig 3: Front Final Drive Cover - Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

-- Install the right flange shaft. Refer to RIGHT FLANGE SHAFT, REMOVING AND INSTALLING .

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

Tightening Specifications

• Refer to Figure