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5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

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Old 11-16-2006, 03:24 PM   #1 (permalink)
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Radiator Fan Is Always On

I Have A 1998 528i And The Fan Is Always On And Its Annoying Does Anyone Know Wat Can Be The Problem?
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Old 11-16-2006, 04:12 PM   #2 (permalink)
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Yea.... a temp sensor... or the fan relay is bad... take it to a shop if you are unable to find the problem...

If you have the bentely manual... there are procedures to test such things.

Good Luck,

Les
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Old 11-16-2006, 09:38 PM   #3 (permalink)
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This should help

Quote:
Originally Posted by BMW5S5RI5S
I Have A 1998 528i And The Fan Is Always On And Its Annoying Does Anyone Know Wat Can Be The Problem?
http://www.bmwtips.com/tipsntricks/auxfan/auxfan.htm

cn
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Old 12-02-2006, 08:58 PM   #4 (permalink)
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It is most likely your fan resistor, final stage. If it keeps running intermittently even after you turn the engine off, drain your battery, and seems to have a mind of its own, look for a new Final Stage Unit (i.e. blower motor resistor).

It should be about $75 online. Check autopartswarehouse.com or bmw-parts-direct.com
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Old 12-05-2006, 01:22 PM   #5 (permalink)
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Hope this helps

Try anyone of the following:

Look up the temperature sensor if you have one.
Check the fan control for any fault
Check your resistor block for the blower motor.

You may need to change any of the following or have it fixed. A firend had the same problem once with his Mercury. It ended up with him replacing his switch.

Check Auto Parts Place or Howstuffworks for more info on parts and replacements.
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