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Question

on my 740 there is a red light on bttm r/h screen and there is a fan running all the time and its running down the battery any idea

Submitted: 556 days and 10 hours ago.
Category: BMW
Value: $18
Status: CLOSED
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Optional Information

Optional Information:
2001 BMW 4.3

Posted by RIP 556 days and 5 hours ago.

Info Request

Hi, welcome to Just Answer.

  1. How many miles are on this BMW?
  2. Is the red lamp on the dash in front of you? Is it on even when the ignition key is out?
  3. Is the fan running inside the car or from under the hood?
  4. Did the fan runnning and red lamp both begin together?

 

556 days and 5 hours ago.

Reply

126.00
lamp lower r/h of comp screen next to a knob
under the hood
I think so
I have now pulled the fuse and stopped the fa will it be ok to drive with this fuse missing

Posted by RIP 556 days and 5 hours ago.

Info Request

Couple more things...is the red lamp illuminated with the key out of the ignition? Can you tell me if the fan noise if closer to the windsheild under the hood, or closer to the front bumper?

556 days and 4 hours ago.

Reply

red light on all the time even when key out
fans are running all the time from the heater box
under windscreen

Posted by RIP 556 days and 2 hours ago.

Answer

Thanks, sounds like you have a typical Blower Regulator failure. It's ok for you to have pulled that fuse and drive the car, it will not affect anything accept the blower motor will not operate. The Blower Regulator is accessed from under the passenger side dash area. This repair will cost around $250 at a reputable BMW repair shop.

555 days and 5 hours ago.

Reply

thanks no more flat batteries for the moment

Accepted Answer

Perfect, let me know if you attempt to install the regulator your self, or if you want to be sure it's the problem you can remove the covering under the passenger side of the dash and unplug it...see if the motor is still off when you reinstall the fuse.

And please don't forget to stop back in and press ACCEPT if the information was helpful :)

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Expert: RIP
Pos. Feedback: 96.6 %
Accepts: 
Answered: 5/16/2008

Lead Technician

BMW Factory Training, ASE Master Techinician, Advanced engine performance.

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