JustAnswer
>
BMW
Ask A Question
|
Register
|
Login
|
Help
BMW
Ask a BMW Question, Get an Answer ASAP!
Have your own BMW question?
5 BMW Mechanics are Online Now
characters left:
Not a BMW Question?
Question
1988 BMW 735i
Driver side side marker lights, front yellow driving light, tail light and turn signal light come and go. Have check all bulb sockets, bulbs and fuses. Got any ideas?
Submitted: 157 days and 3 hours ago.
Category: BMW
Value: $20
Status: AWAITING CUSTOMER ACTION
+
Read More
Optional Information
1988 BMW 735i M30
Already Tried:
Removed/checked bulbs, checked connections, replaces brake socket, checked for blown fuses.
Posted by
BMWTech88
155 days and 22 hours ago.
Answer
I would check the light module it is located in the E box/fuse box located under the hood on the drivers side near the upper strut tower,Inside the box there will be a black module plugged in I am going to try to locate a picture of one for you.If you open that module case you can inspect the solder joints on the incoming side where the plug connection is,I can almost guarantee that there is one that is cracked it can be resoldered and will work fine or you can replace module but they are expensive.let me know if you needanything else I will try to get a location pic as soon as possible for you!
Posted by
BMWTech88
155 days and 21 hours ago.
Answer
View Full Image
View Full Image
View Full Image
View Full Image
Edited by BMWTech88 on 6/19/2009 at 7:13 AM
155 days and 3 hours ago.
Reply
I have removed the module. Popped the case open, inspected with a magnifying glass and find no loose or broken connections or solder points. As mentioned before all the driver side lights (front yellow driving light, side markers, tail light and brake light) come and go. Right now they are not working. I have moved bulbs from driver side to passenger side and the bulbs that are not lighting up on the driver side do work on the passenger side? Any other ideas? Is there a single point of wiring that feeds this bank of lights that I should be searching for a loose connection?
Answer
There are also relays in the module that could be acting up,at that point its time to replace the module.Most commonly there will be a bad solder joint.I would look again very carefully it should be a larger joint because of the higher load.Sometimes it is hard to see because it just cracks in a circle around the pin just enough to loose contact sometimes.As far as other issues anything is possible,wiring?fuse box? Usually if the whole side takes a crap this is the problem.Let me see if I can find you a ETM for the system to aid in the diagnosis
Expert:
BMWTech88
Pos. Feedback:
n/a
Accepts:
Answered:
6/20/2009
BMW Technician
8 Years BMW Tech. Factory trained master,All older models to most current vehicles
+
Read More
Related BMW Questions
my 328i automatic is making a dining noise, looked in the ma...
Hello, I have an issue with my 2001 530i bmw. I was told th...
2006 325i, car will not start, started to hear clicking soun...
2006 325i, car will not start, started to hear clicking soun...
1992 bmw735il overheats... no water in oil. Problem?
I have a E46 2003 320D, recently my turbo gave in and I had
you will probably think me stupid, but I am an older woman
Hello, I have a 94 840Ci and when I accelerate from a stop