BMW: Warning messages coming up for no reason (E34)

I'm wondering if there is a central control module somewhere in the car which
may be going bad (?). With any luck, it won't be a computer module with a $500
price tag.

We have the same trouble, but with the message reading "low coolant level"
each time the car is started. Goes away once I start to drive! Level is always
fine. Had the level sensor replaced. No improvement. Local dealer really no
help. They are not too keen when it comes to intermittant electronic
troubleshooting.

Question for anyone out there - would this type of trouble appear as a
diagnostic code???

 


-----------------------------------------
Honorary Member of the Military, Industrial, Entertainment Complex.

Check all the connections on your light clusters where the lamp holder pins
touch the metal terminal plate and the multi plug connectors for loose
contacts and signs of arcing. I had a loose connection on the brake light
which arced and melted the plastic backing allowing the plate to move away
from the lamp holder pin and bring up a fault. I packed out behind the plate
and bent the pins for a better contact and that cleared the fault.
Andy
"Stephen Anders" <com> wrote in message
news:bj249n$e0v48$news.uni-berlin.de... 

"Stephen Anders" <com> wrote in message news:<bj249n$e0v48$news.uni-berlin.de>... 

It's probably your brakelight switch that's causing your problem. More
info can be found on this website:
http://www.nmia.com/~dgnrg/page_25.htm

There is a central control module called the "Check Control Module".
It's located under the bonnet on the left side in the fuse box. It's
the second module when viewed from the side of the car. Try cleaning
the contacts on the module with electrical contact cleaner. If this
doesn't help it might be a wire that's about to break in the wiring
loom.


coming (around again and again and again ) wrote in message news:<aol.com>... 

Thanks. Good advice to try out.

Do you know if it's worth opening this module up to check for interior loose
connections or cold solder joints while I have it in my hand?

 
news:<aol.com>... 
level" 

"around again and again and again " <coming> wrote in message
news:aol.com... 
loose 

I knew a guy with an E34 540, whose engine was stumbling and lighting the
Check Engine light. Dealer put it on the computer and showed error codes on
all 8 injectors. Eventually diagnosed it as a faulty fuel injection
computer, replacement was close to $2K cdn. Guy didn't agree. Finally,
they reached in, gave the harness for the computer a good shove to reseat
it, and all the codes cleared.

Kicker of it is... had the mechanic changed the computer, all would have
been well with the car, he would have paid his bill, and complained to his
friends about how expensive BMW's are to maintain.

-Russ.