when i turn on my ac the temperature gage rises to red zone when i turn it off the tenperature gage goes back to normal. can anyone tell me what this could possibly be?

Asked by Jul 22, 2014 at 05:57 PM about the 2002 BMW 5 Series 530i

Question type: General

1 Answer

1) low coolant 2) added load of A/C compressor running 3) fan not coming on 4) thermostat in engine 5) water pump failing 6) something blocking radiator (that one's a long shot)

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