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Home >> Audi >> 2011 >> S4 Automatic DCT >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Final Drive & Differential - Servicing - 7-Speed Dual Clutch Transmission 0B5 (Sedan) >> 39 Final Drive, Differential >> Seals >> Left Seal, Replacing

Left Seal, Replacing

Special tools and workshop equipment required 

Procedure 

Fig 1: Identifying Bolts -Arrows-
GWWA39-10258Courtesy of AUDI OF AMERICA, LLC

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

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

-- Remove the bolts -arrows-.

-- Carefully remove the front final drive cover; when doing this, the transmission fluid will drain out.

CAUTION:

Danger of causing damage to the differential.

  • Slowly and carefully remove front final driver cover from transmission housing. Otherwise differential can fall out of transmission.
  • A differential that has fallen out can no longer be installed. If differential falls out, transmission must be replaced.
  • Make sure the differential bearing inner race and adjustment shims do not fall out of the transmission housing and front final drive cover.
  • Bearing inner races and adjustments that have fallen out cannot be allocated with workshop equipment.

-- Carefully remove the differential -arrow- and lay it on a soft support.

Fig 2: Identifying Differential
GWWA37-10157Courtesy of AUDI OF AMERICA, LLC

-- Remove the left flange shaft. Refer to LEFT FLANGE SHAFT, REMOVING AND INSTALLING .

Fig 3: Pry Out Seal From Back
GWWA39-10194Courtesy of AUDI OF AMERICA, LLC
CAUTION:

Danger of damaging the seating surface in the transmission housing.

  • Position the screwdriver.

-- Pry out the seal from the back.

-- Lightly coat the new seal on the outside with oil and install it using the Seal Installer - Flange Shaft T40164.

Fig 4: Install Seal Using T40164
GWWA39-10257Courtesy of AUDI OF AMERICA, LLC

-- Install the shaft seal for the left flange shaft using the Seal Installer - Flange Shaft T40164 all the way; when doing this, do not bend it.

-- Fill the space between the sealing- and dust lip half way with sealing grease.

-- Install the differential.

-- Install the front final drive cover with a new O-ring and tighten the bolts. Refer to Figure.

Fig 5: Front Final Drive Cover
GWWA39-10193Courtesy of AUDI OF AMERICA, LLC

-- Install the left flange shaft. Refer to LEFT FLANGE SHAFT, REMOVING AND INSTALLING .

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

-- Fill with transmission fluid (MTF). Refer to TRANSMISSION FLUID, DRAINING AND FILLING .