2 Grand Master
LKM Gurus, Help Please......
I've had an intermitent low beam probloem that is now permanent. I've searched the archives and Brunos sight. Unfortunately the photos of the LKM don't look like mine (below). I'm having difficulty locating the proper areas to solder in brunos procedure.
Could someone sort me out? Any help appreciated.
The LKM is from a 10/90 build date 525im (M50). Its and "LKM-L US" PN 61.35-1391 348-133188.
Am I retarded?
Dave M
10/90 Build 525im, 630,000+km, Eibach/Sachs, Engine Rebuild
*RIP Oskar the DOG*
4 Grand Master
That copper 1cm thing is the relay... the low beam and high beam are next to each other. The other side is the fog light relay.
The low beam is the one closer to the edge of the pair together. The solder point where you want to reflow is on the back side... three solder in straight line.
Big Time Poster
Youre looking for a solder crack
No matter if the board is the same or not, youre looking for cracks in the solder joints
they look like this:
If you cant find any then maybe you dont have this issue - please tell us what you are experiencing with the lights
Big, Big Time Poster
Wiggle the relay with your finger while examining the solder joint with a magnifying glass. If the solder is cracked it should be easy to see.
1990 535i 5-sp., except for 16" M-Contours, cd deck, and clear corners, completely stock. 226k and running strong
Super Moderator
.Originally Posted by Dave M
I've had an intermitent low beam probloem that is now permanent. I've searched the archives and Brunos sight. Unfortunately the photos of the LKM don't look like mine (below). I'm having difficulty locating the proper areas to solder in brunos procedure.
Could someone sort me out? Any help appreciated.
The LKM is from a 10/90 build date 525im (M50). Its and "LKM-L US" PN 61.35-1391 348-133188.
Am I retarded?
Dave M
Last edited by Bill R.; 09-14-2007 at 11:21 PM.
Super Moderator
Actually on bmw's they tend to look more like
this.. .
No matter if the board is the same or not, youre looking for cracks in the solder joints
they look like this:
If you cant find any then maybe you dont have this issue - please tell us what you are experiencing with the lights
3 Grand Master
re solder all those arrows
some of the cracks are real hard to see, and if you miss one it'll make youto do it all over.
Vee ave vays of dealing vid your kind...........
Major Contributor
Don't forget to remove the old solder first. Re-flowing will trap any oxides in the fracture and contaminate the joint. Use solder wick.some of the cracks are real hard to see, and if you miss one it'll make you
Anthony
03/64 production
'91M5 - 11/90, was mine, it's Jim's now.
2 Grand Master
Thank you kindly gentlemen. Bill, your pic is priceless, Tiger, Mitch, thanks for the detail. I'll get to work soon and let everyone nkow what happens (remembering to remove old solder).
Oh, and chollum. I was experiencing intermitent passenger side low beam failure. Now its apparently permanent;(
Dave M
10/90 Build 525im, 630,000+km, Eibach/Sachs, Engine Rebuild
*RIP Oskar the DOG
Big Time Poster
well dont also overlook the possibility of corroded wires going to passenger side low beam, especially on a 1991 car. but check solder connections first
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