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BMW Repair/2001 BMW 530i: Sounds like a small fan in the dashboard which stays on when the car is off.


Vanessa wrote at 2007-10-24 19:54:14
I know exactly what you are talking about. I own a 01 BMW 330ci. It does the same thing! I figured out it's the heater. I took it to the BMW dealer and they also told me it was my heater. So I ended up having to buy a small part which cost about $50. It hasn't been replaced yet but for now I have to plug and unplug my heater so it doesn't run my battery down. Your fuses are in your glove box. Two little white knobs that you turn and it will drop down.

James Agers wrote at 2014-06-06 22:54:07
I have had two 1990s BMW 525i sedans. Also have 3 other bimmers in the family. They all have the same thing you are describing. I've never had the patience to sit in the car to see how long it runs but it has never caused a problem. In our cars it is the tiny little fan that, so far as I know, feeds air to the interior temperature sensor.  

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Evan Slater


All 1999 model year and newer. Don't know much about pre OBD2 stuff. E46 and newer I am Especially good with late models. I NEED YEAR & MODEL OF VEHICLE! when asking questions. Please give last seven digits of the VIN number. Please give as much background info as possible when asking questions. Please read past questions and answers to avoid duplicate questions.


6 years automotive experience and 3+ years working as a Dealership Master Technician. Will offer dealership Technician perspective with knowledge of common failures/problems, part weaknesses, Service Bulletins, and Improved components. Will not give tipical Dealer Bull

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Graduate UTI Phoenix 2002 (won 9 out of 15 possible top student awards) BMW STEP Graduate 2004, Over 90% average on BMW ACT competition question for 3 years. BMW Master Technician Level 4 with Master Tech training. ASE Master Certified Technician.

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