A4 Sedan V6-3.2L (BKH) (2007)
1 - A/C Compressor Regulator Valve (N280)
‹› Do not remove
‹› Checking activation and function. Refer to => [ Test Step 6 ] See: Testing and Inspection/Component Tests and General
Diagnostics/Climatronic Control Module A/C Control Head Electrical Test.
‹› A/C Compressor Regulator Valve (N280) is activated by A/C control head Climatronic Control Module ( J255), it controls pressure on low
pressure side of refrigerant circuit
2 - Compressor
‹› Refrigerant line, disconnecting from compressor and connecting. Refer to => [ Refrigerant Lines, Disconnecting and Connecting from
Compressor ] See: Refrigerant Lines, Disconnecting and Connecting From Compressor
‹› Replace the O-ring seals to the connections.
‹› To protect the compressor, the engine should only be started with the refrigerant circuit completely assembled.
‹› Remove ribbed belt.
‹› Compressor, removing and installing, refer to => [ Compressor, 4- or 6-Cylinder ] See: Compressor HVAC/Service and Repair/Compressor, 4-
or 6-Cylinder
‹› Different compressors, depending on the country version and the engine. Refer to => [ Refrigerant Circuit ] See: Refrigerant/Description and
Operation/Refrigerant Circuit .
‹› In vehicles with an 8 cylinder engine, the compressor is driven by a drive shaft not a belt. Refer to => [ Compressor Drive Unit ] See:
Compressor HVAC/Description and Operation/Compressor Drive Unit