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Home >> Audi >> 2017 >> S7 Prestige >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Differential System & Final Drive System (General & Service Information - 7-Speed Dual Clutch - 0B5) >> Final Drive, Differential >> Seals >> Left Seal, Replacing

Left Seal, Replacing

Special Tools And Workshop Equipment Required 

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.

GWWA37-10157Courtesy of AUDI OF AMERICA, LLC

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

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  .

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 Tightening Specification And Sequence, 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 .