michael mack Posted on Aug 18, 2014

The hi beams stay on even with the switch on the lo beam on my 2003 BMW 525

1 Answer

Ron Schuler

Contributor 19 Answers
Posted on Aug 26, 2014

Ron Schuler

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Joined: Jul 04, 2012

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Here are two possible solutions:

first it could be the highbeam switch located on the steering column. Secondly it could be the light control module (LCM) which is typically located on the right wall passenger below the glove compartment.

I had to replace my LCM with a new one from eBay and then it had to be reprogrammed by the dealer ( one hour labor).

not sure which one it IS. I bought the Bentley service manual on eBay which has helped a lot... Along with YouTube how to videos you should be able to figure it out - everything is there! Also check the BMW forums - bimmerfest, bimmerforums, bimmerpost, etc

Look up

Ron Schuler Aug 26, 2014

Here are two possible solutions:

first it could be the highbeam switch located on the steering column. Secondly it could be the light control module (LCM) which is typically located on the right wall passenger below the glove compartment.

I had to replace my LCM with a new one from eBay and then it had to be reprogrammed by the dealer ( one hour labor).

not sure which one it IS. I bought the Bentley service manual on eBay which has helped a lot... Along with YouTube how to videos you should be able to figure it out - everything is there! Also check the BMW forums - bimmerfest, bimmerforums, bimmerpost, etc

Look up

5 Related Answers

Anonymous

Posted on Jun 28, 2008

SOURCE: Hi-Beams Stay On

Need to replace the turn signal and dimmer switch.

They go bad frequently and arent hard to put in.

Anonymous

1498 Answers
Posted on Sep 08, 2008

SOURCE: Lo-beams not working

Hi manolonusa,

It may have something to do with your headlights, but my first thought is they are just a symptom of another problem.

I'd check on the alternator. If the ALT fails, a good battery will keep the car running for quite a while. Sometimes the first symptoms are the dimming of the headlights. So:

Make sure belts are tight.
Get a meter and test the output voltage while its running (be careful when doing this).
Check the voltage at the battery when stopped and when running.
Same thing with headlights on and off.

Get back to me with the results. Once the alternator is ruled out we can check a possible headlight problem. But this way, at least you won't be stranded somewhere with a dead battery.

Anonymous

1586 Answers
Posted on Oct 31, 2008

SOURCE: burned out headlight/bulb bmw 1991 325i 2dr

It's a bulb replacement. If it's anything similar to my Audi, there is a cover on the back of the headlight housing that you pop off. Then you can reach in, pull the wire connector off the bulb, and unclip a metal retainer over the bulb, and pull the bulb out. Installation of the new one is the reverse. Just be SURE not to touch the glass part of the bulb. Skin oils can cause a halogen bulb to burn very hot and burn out very quickly. If you do touch the glass, wipe it gently but thoroughly on a cotton cloth to clean it off before you install it.

Anonymous

1 Answer
Posted on Dec 06, 2009

SOURCE: main beam stays on

Your Light Control Module (LCM) is faulty. It can be repaired. www.lcm-repairs.co.uk

E39 5 Series 1997-2003

richochet

1026 Answers
Posted on Feb 22, 2010

SOURCE: 2007 toyota corolla high beams won't work when I

switch or fuse remove fuse and replace one same amp
maybe both high beam in bulbs blown
but blue light not coming on would say a fuse or switch faulty

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