The complete automotive resource for buyers, sellers, and owners like you.
Car, Truck and SUV Forums at Roadfly
+ Bentley Forums
+ BMW Forums
+ Cadillac Forums
+ Chevrolet Forums
+ Ferrari Forums
+ Jaguar Forums
+ Lamborghini Forums
+ Lotus Forums
+ Mercedes-Benz Forums
+ Maserati Forums
+ MINI Forums
+ Porsche Forums
+ General Discussion
+ Marketplace Forums
Re: Bmw 735il -1988 (archive)

[ Follow Ups ] [ 7-series (E32) Message Board ] [ Msg. Board FAQ ]

Posted by Dzo on December 28, 2000 at 04:04:42:

In Reply to: Re: Bmw 735il -1988 posted by Cypress931 on December 27, 2000 at 19:17:42:

Even if only one light is off it can be relay!
In my case I lost rear left tail light with message on display. I replaced the bulb, which was burnt out, but the light didn't came back. I measured the voltage and it was just about 2v (for one bulb only!).
When I took apart the mustard relay I understood how it is possible that only one bulb is not working, because there are two small relays inside it with 4 contacts together. I am not sure that there is a contact for each bulb, but the second one (counted from foot) is only for rear left.
After resoldering all is ok.
BTW, be careful when solder, because you can easily melt the plastic where contacts are fixed and therefore disalign them.

Dzo, 735iA '87


Thank You Jake I will Check that out and let you know what happened......
Phil Parker

Check the small fuses along the upper rim of the fuse box (they are about 29 fuses ranging from 7.5A, 30A, 15A, 10A) See if those are working properly. Refer to the BMW car manual, or lid of the fuse box to find the fuse(s) that control the low beams and/or headlights.

Also check the Mustard Colored relay within the fuse box (it is a cubed shaped fuse located toward the lower right of the fuse box, it has a mustard-yellow color)

When doing this make sure that each fuse or relay mentioned is clean and in good working order. If not buy cleaning material or replace the bad fuse or relay. (either BMW or your mechanic should care these fuses or relays, which you can buy and replace yourself)

And finally check (if possible) the LKM box (black retangular box labeled LKM, located at the bottom of the fuse box) Make sure that is in good working order.

If all else fails recheck the light bulbs or have your car serviced by a mechanic who knows alot about electrical problems and configuration in BMWs.

I hope I helped you...Good Luck and keep this forum updated. ***JAKE***






Follow Ups:



[ Follow Ups ] [ 7-series (E32) Message Board ] [ Msg. Board FAQ ]
Questions, comments, or problems, please visit the Roadfly help desk.
Roadfly.com Logo © 1997 - 2017 Jump Internet Inc. All rights reserved.