2009-2011 BMW 335d 3.0L. 2004-2005 BMW 530i 3.0L. 2004-2005 BMW 525i 2.5L. The AC compressor has a clutch, which is connected to the vehicle's engine to obtain power from the engine. The compressor uses power only when needed, but if the AC compressor clutch or its pulley is stuck, the compressor will not work because it will not gain any power.
