S5 Quattro Coupe V8-4.2L (CAUA) (2009)
Compressor Pulley: Description and Operation
Compressor Pulley
‹› At start of the production, 4 and 6 cylinder vehicles At start of production, compressors manufactured by "Denso" (type "6 SEU 14") were
installed. Depending on engine and period of production, compressors from other manufacturers or other versions may be installed at a later time.
‹› You can remove and reinstall the compressor on vehicles with 4 cylinders engine and 6 cylinder. The TDI engine can be removed and installed at
the bracket without opening the refrigerant lines. Refer to => [ A/C Compressor ] See: Service and Repair.
‹› Only on 6 cylinder vehicles On the FSI engine, the compressor can disconnected and removed from the bracket only if the refrigerant circuit is
open. Refer to => [ Compressor on Bracket ] See: Service and Repair.
‹› Only on 8 cylinder vehicles In the FSI engine, the compressor is driven by a driveshaft, which can be removed and replaced only if the compressor
has been removed. Refer to => [ Loosening and Tightening Compressor Drive Shaft ] See: Service and Repair.
‹› Preparation for replacing the pulley. Refer to => [ Compressor Pulley ] See: Service and Repair
‹› Replace the belt pulley. Refer to => [ Compressor Pulley ] See: Service and Repair
‹› Pulley, removing from compressor and re-installing. Refer to => [ Compressor Pulley ] See: Service and Repair