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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 04-05-2013, 05:12 PM
Sevensonly Sevensonly is offline
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Right Turn Signal Malfunction

Bimmer Boys,

I'm more than certain that this has been covered before and I tried to do a search before I posted the question but I couldn't find anything.

I was getting the malfunction turn signal code and took my car to the dealer. The socket was cleaned and a new bulb was installed (although the bulb wasn't blown, just going on and off at times).

Still, I'm having the same problem and it's driving me nuts. When I'm driving with someone else in the car, I refuse to use my blinker when making a right turn because you know that we can't let anyone know that there is something wrong with our cars -LOL!

I need to know if there is an easy DIY way to change the socket or do I need to return it to the dealership to have them replace the socket?

Please feel free to email me at FDUNupe@gmail.com or you can respond here just in case there are other new people to the forum that has the same issue.

Thanks in advance for all of those with feedback.

Rick
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  #2  
Old 04-05-2013, 07:30 PM
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First_745Li First_745Li is online now
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Does it blink at all, really fast or just gets stuck ON when you activate it? Did you check both the front and rear turn signal bulbs?
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  #3  
Old 04-05-2013, 08:49 PM
Sevensonly Sevensonly is offline
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Thanks for the speedy reply.

Yes, it blinks at its normal rate and then when I'm into the turn, it blinks fast. I didn't check the rear but when I look in the front, its the inner bulb ( closest to the grille) that goes out and then back on.

Can I change the socket and/or at least unhook it with ease to inspect it?
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  #4  
Old 04-05-2013, 09:37 PM
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First_745Li First_745Li is online now
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I haven't changed or remove the socket to say. But on other cars I was able to change out the socket. Check realoem.com enter your vin and it has the diagrams.
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  #5  
Old 04-06-2013, 09:43 AM
bmwoem1 bmwoem1 is offline
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I'm a bmw tech, I've seen this issue many times. The wiring inside the headlight shorts out to the metal frame within the headlight. If the short circuit is not fixed, it will damage the LCM. You will have to remove the headlight and follow the wiring within the light and insulate the rubbing wiring.
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  #6  
Old 04-06-2013, 03:48 PM
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collins912 collins912 is offline
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Quote:
Originally Posted by bmwoem1 View Post
I'm a bmw tech, I've seen this issue many times. The wiring inside the headlight shorts out to the metal frame within the headlight. If the short circuit is not fixed, it will damage the LCM. You will have to remove the headlight and follow the wiring within the light and insulate the rubbing wiring.
True indeed. I ended up getting a new LCM. Luckily I found one on eBay.
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  #7  
Old 04-08-2013, 01:27 AM
Sevensonly Sevensonly is offline
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745 and OEM1,

Thanks for the information. I forgot to mention in my original post that I have an '06 LI just in case it makes a difference???

I'm definitely going to go to that site so that I can get started on this.
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  #8  
Old 04-08-2013, 05:36 AM
bmwoem1 bmwoem1 is offline
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I have seen this issue primarily with the 750's in your production range. The older 745 headlights do not have this wiring problem. In most cases you will have to remove the headlight for properly inspection/repair. Sometimes, the headlight needs to be replaced because the short circuit cannot be fixed, good luck
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  #9  
Old 04-18-2013, 08:37 AM
Sevensonly Sevensonly is offline
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BMWOEM,

One other quick question. I noticed a few days ago that my right rear inner flasher bulb goes out too at times. Is this all attributed to the headlight wiring? I'd hate to buy a new one and find that there's an additional fix that is needed.

Thanks!
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  #10  
Old 04-18-2013, 09:05 AM
bmwoem1 bmwoem1 is offline
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I would replace that right rear turn signal bulb before going any further with the headlight/LCM.
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  #11  
Old 04-18-2013, 10:52 AM
Sevensonly Sevensonly is offline
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Ok, cool! Thanks!
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  #12  
Old 05-06-2013, 09:29 PM
Qmetro Qmetro is offline
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Mein Auto: 97 540i,03 745li
Right Turn Signal Malfunction

Ok had similar problem few lighting codes. Replaced driver side angel eye from bulb to led. Replaced the driver corner marker light . All blown.

Problem I still have, drivers side turn signal light completely out. Change bulb no result. That signal doesn't even show as coded bulb out. Doesn't work with signal or hazards. Didn't check for voltage though.

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Install of angel eyes pretty easy for drivers side. Little more work for passenger.
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Marker light.


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  #13  
Old 05-07-2013, 07:13 AM
BMWBIRD304 BMWBIRD304 is offline
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I had a bunch of light malfunctions. Turned out somebody had cut my wiring harness and rigged it up. I have to get a new wiring harness and everything
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  #14  
Old 06-01-2013, 07:26 PM
Mongooose Mongooose is offline
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bmwoem1, could you shed some light on opening up the headlight assembly and where to look for the short? I already have the headlight out (2006 750LI )
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  #15  
Old 06-02-2013, 03:39 PM
bmwoem1 bmwoem1 is offline
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Right Turn Signal Malfunction

The wiring shorts out against the metal frame work within the light. It's easiest found by following the circuit to and from the turn signal bulbs. We usually replacing the whole light because the short usually deep within and not easily accessible.


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  #16  
Old 06-02-2013, 06:06 PM
Mongooose Mongooose is offline
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Thank you bmwoem1, We have not had the car very long and made mention before purchasing that light did not work and they said they would fix it although thinking it was just a bulb I did not worry, going to see if they will fix it anyways, hopefully they know we are looking for a second BMW and seem to be a pretty good used car lot that sells a lot of BMW's and works on them.

What I found looks like a lot of dremel work and care to disassemble the light, will just plan a weekend of it at worste case.
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  #17  
Old 02-15-2014, 04:42 PM
fab72 fab72 is offline
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There is a blue wire that can rub against the housing and short. One will find this inside the access panel for the xenon bulb (a big rectangular one). I attached a picture. I found the blue wire going to one of the bulbs rubbing against the metal frame for the xenon with a visible spot where it had rubbed through the insulation. I suppose on could try to add a new layer of insulation to the wire, but with the size of the access hole, and no apparent way to disconnect and reconnect the wire, that seemed to be a real challenge. Instead, I just repositioned the wire. There is a plastic clip near this location that holds that wire in place, and to remedy the situation, I simply pulled on the backside of the wire to remove the slack. I've attached a picture of the wire and what one would be looking for. For this repair, I removed the bumper so I could remove the headlight assembly (I have the 2006 750i where this is required to remove the headlights). It might be possible to do this without removing the headlights, but Iím certain it would be tough. If someone is interested in giving that a try, I would recommend removing the air box and the cover to the bulb. The wire is going to be located at the top of the interior of the assembly. You might be able to see and correct the issue with a mirror, a flashlight, needle nose pliers and a whole lot of luck. That being said, Iím certain the best one could do would to be to reposition the wire as I had done. Adding any insulation to it would be an exercise in frustration.
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  #18  
Old 02-15-2014, 10:08 PM
UT4VIDA UT4VIDA is offline
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Exact same issue. A lot of the wiring in there is in bad shape. 2007 750i.
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  #19  
Old 03-06-2014, 03:15 PM
msiedliski msiedliski is offline
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Turn signal program / e65 bmw 2007 750 li turn signal problem

One minute works fine, then fast blinking. After it rained it is doing it a lot. The fast blinker is annoying and embarrassing in the $89,000 750 Li...
I took everything apart in garage yesterday, turned the blinker, hazards for !/2 hour, happy that maybe I corrected it. This morning I started the car, first turn, fast blink!

Today I red about the blue wire, in the Xenon box, going to look for that. It seems to malfunction when it is cold out, when car is warm in the garage, works fine. mine is the left outer blinker fault. ...........

Hope I can get to the bottom of this tonight........

Thank You for great picks and lots of good info...


MIKE S
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  #20  
Old 03-06-2014, 03:15 PM
msiedliski msiedliski is offline
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Turn signal malfunction error code / e65 bmw 2007 750 li turn signal problem
One minute works fine, then fast blinking. After it rained it is doing it a lot. The fast blinker is annoying and embarrassing in the $89,000 750 Li...
I took everything apart in garage yesterday, turned the blinker, hazards for !/2 hour, happy that maybe I corrected it. This morning I started the car, first turn, fast blink!

Today I red about the blue wire, in the Xenon box, going to look for that. It seems to malfunction when it is cold out, when car is warm in the garage, works fine. mine is the left outer blinker fault. ...........

Hope I can get to the bottom of this tonight........

Thank You for great picks and lots of good info...


MIKE S

Last edited by msiedliski; 03-06-2014 at 03:17 PM.
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  #21  
Old 05-10-2014, 05:15 PM
aantono aantono is offline
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Quote:
Originally Posted by bmwoem1 View Post
I'm a bmw tech, I've seen this issue many times. The wiring inside the headlight shorts out to the metal frame within the headlight. If the short circuit is not fixed, it will damage the LCM. You will have to remove the headlight and follow the wiring within the light and insulate the rubbing wiring.
I've managed to take the light assembly out and located the shorted wire. After taping it up with electrical tape, put everything back together, but the turn signal still flashes really fast (and only one bulb of the two is operational, though I tried to swap them and both bulbs are working). Someone mentioned that the LCM could be damaged due to the shorting wire and even though the short is gone, the LCM also needs to be replaced. Is that true/possible?
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