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Home >> Audi >> 2012 >> S4 Standard Trans >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> 3.0L - Turbocharger & Supercharger - Engine Code(S): CCBA, CGXC & CTUB (Sedan) >> 21 Turbocharger, Supercharger >> Supercharger >> Drive Head And Decoupling Spring, Removing And Installing >> Removing

Drive Head And Decoupling Spring, Removing And Installing: Removing

Fig 1: Coolant Pipes And Bolts
GWWA19-10759Courtesy of AUDI OF AMERICA, LLC

-- Remove the coolant pipes from the compressor. Refer to COMPRESSOR COOLANT PIPES, REMOVING AND INSTALLING .

-- Hold the supercharger perpendicular on the engine/transmission holder.

-- Remove the bolts -arrows-.

Fig 2: Identifying Bolts -Arrows-
GWWA21-10463Courtesy of AUDI OF AMERICA, LLC
Fig 3: Identifying Removal Of Drive Unit From Bearing Cap
GWWA21-10464Courtesy of AUDI OF AMERICA, LLC
CAUTION:
  • To prevent the bearing cap -1- from coming and loose and having to be sealed again, do not use a hammer to remove the drive head -2- but rather use expanding pliers in direction of -arrows-, as illustrated (See Fig 3).

-- Carefully remove the drive head from the bearing cap.

-- Remove the decoupling spring.

-- Extract all oil for the supercharger drive from the bearing cap as well as from the oil pockets -arrows- between the ribs using the Used Oil Collection and Extraction Unit SMN372500.

Fig 4: Identifying Oil Pockets -Arrows-
GWWA21-10549Courtesy of AUDI OF AMERICA, LLC