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Home >> Audi >> 2010 >> S4 Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 506 (Final Drive & Differential - MULTITRONIC Transmission 0AW (Sedan) (As Of 09.2014)) >> 39 Final Drive, Differential >> Transmission Control >> Hydraulic Control Module, Removing And Installing >> Removing

Hydraulic Control Module, Removing And Installing: Removing

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Fig 1: Identifying Selector Shaft Catch
GWWA38-10185Courtesy of AUDI OF AMERICA, LLC
CAUTION:

Danger of damaging the spring.

  • Do not remove or install the spring using sharp edged pliers or something similar.
  • If the spring wire gets damaged through notches or bends, the slider for selector lever position will not function correctly.

-- Unhook the spring -1- on the slider for selector lever position -2- and on the selector shaft -3-.

-- Move the selector lever lock mechanism -1- to the right -arrow-. The tab -A- will be removed through the slit on the retaining plate -B-.

Fig 2: Moving Selector Lever Lock Mechanism Lever To Left Opposite Direction Of Arrow
GWWA38-10186Courtesy of AUDI OF AMERICA, LLC

-- Pull the selector lever lock mechanism lever -1- downward out of bearing hole in the hydraulic control module. When doing this, pay attention to the roller -2-.

Fig 3: Installing Roller -2- With Shoulder Of Selector Lever Lock Mechanism Lever -1- On Lever
GWWA38-10187Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -arrows-.

Fig 4: Coating New O-Rings On Hydraulic Control Module With ATF
GWWA38-10188Courtesy of AUDI OF AMERICA, LLC
CAUTION:

Danger of damaging the hydraulic control module.

  • The hydraulic control module must not, under any circumstances, be supported on the long pump shaft on the back side or raised up.
  • Otherwise, the blades inside the pump will be crushed and the pump will be damaged. Likewise the bearing for the pump shaft will get damaged.

-- Carefully remove the hydraulic control module toward the rear and tilt it downward so that it is possible to remove the long pump shaft.

NOTE:

Ignore -item A-.

-- Remove the axial sealing elements -A- and -B- from the transmission.

Fig 5: Identifying Axial Sealing Elements -A- And -B-
GWWA38-10189Courtesy of AUDI OF AMERICA, LLC