Need Help 1994 E34 540i.... - BMW Forum - BimmerWerkz.com
5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

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#1 (permalink) Old 01-11-2009, 07:20 AM
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Smile Need Help 1994 E34 540i....

hi there, im new to this forum, wondering if anyone can help???

got a 1994 e34 540i 4.0 v8, auto, goes great just bought it 1 week ago, but noticed that lights on display keep coming on: brake light, tail light, brake linings, owners handbook, lic plate light...

brake light and tail light and lic plate light only come on when i turn on headlights, the other 2 always..
cant understand why? also dip beam error???
i checked wires in trunk, near hinge and found 5 wires bent and broken, but will fix that soon, do you think that has something to do with these errors?
also cruise control doesnt work...dont know wat that problem could be?

anyway, if someone could help me out here, would appreciate it very much....
by the way, anyone know where i can get a sunroof seal from? needs replacement..
thanks...

longdom..

Last edited by longdom; 01-11-2009 at 07:31 AM.
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#2 (permalink) Old 01-11-2009, 07:36 AM
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Hi, When your wires are fixed all should be good, as for cruise it will only work above 30mph, as for a sunroof seal, dealer or a 2nd hand one from a breakers.

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#3 (permalink) Old 01-11-2009, 08:02 AM
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thanks for your reply...i tried cruise control on freeway today, and nothing...doesnt work.

sunroof seal, been looking, only imports around here, no local pieces it seems.
im in sydney, australia by the way..

and dip beam??? whats that?? isnt it with headlights?
so broken wires are at the back, shouldnt have anything to do with dip beam not working..
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#4 (permalink) Old 01-11-2009, 10:24 AM
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Are your dip/low beams working while the error indicator is on?

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#5 (permalink) Old 01-11-2009, 03:54 PM
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hi,
yes they do...i mean that i get the dip beam error when they are on.

i read somewhere about changing the fuse, does that apply to me?
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#6 (permalink) Old 01-11-2009, 04:00 PM
OMFG another one!?
 
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I don't think it's a fuse; AFAIK headlights are usually on a circuit breaker. It may be an issue with the type of bulb in the lights.

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#7 (permalink) Old 01-11-2009, 04:09 PM
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ok ill look out for that...
what about the other probs i have?
thanks...
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#8 (permalink) Old 01-12-2009, 04:26 AM
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ok..
i looked at headlights, and...
yes i found that the wires behind the actual lights are so corroded and messed up...so my guess is that the fault is there.
ill fix them up and let you know, and also the wires in the trunk, theyll be fixed too...then all should be well in regards to lights..i hope...

that leaves me with this dead cruise control???
any ideas???
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#9 (permalink) Old 01-12-2009, 08:47 AM
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Dead cruise..... fuse?

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#10 (permalink) Old 01-12-2009, 10:28 AM
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BMW 540i Questions

Once you determine some of the parts you may need, you may want to check out our catalog at FCP Groton – Discount Car Parts & Auto Parts- Low Prices | Free Shipping We carry a lot of different parts that you may be looking for right now. We also have a certified technician on duty that may be able to help you determine what parts can help your vehicle and how to install. Our phone # is 877-634-0063. Best of Luck with everything!!!

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#11 (permalink) Old 01-13-2009, 05:11 AM
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ok,
so here is the summary...
i fixed the trunk wires that were damaged and the faults still remain..

when i dont turn my lights on, i get owners handbook and brake linings..
when i turn lights on, and only headlights not park lights, i get tail light, brake light, dip beam, lic plate light, ..
isnt that wierd???

what do i do?????
maybe they have to be reset or something...
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#12 (permalink) Old 01-13-2009, 01:18 PM
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Bulb failure relay???

We have a certified tech here on duty, ran scenerio by him for you. He thinks it could possibly be a bulb failure relay, if equipped or a headlight switch. If you need parts for your BMW check out our website:

FCP Groton – Discount Car Parts & Auto Parts- Low Prices | Free Shipping

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#13 (permalink) Old 01-13-2009, 04:01 PM
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thanks for info...
i read on forum about lkm...
could this be also the problem?

i found and pulled apart, but all looks good, actually, in very good condition...no cracks, old solder joints etc.

bulb failure relay?
whats that?
is that the actual globes are faulty, or is there something else i should look at?

thanks again for your help, im getting there...
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#14 (permalink) Old 01-22-2009, 11:18 AM
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Quote:
Originally Posted by longdom View Post
hi there, im new to this forum, wondering if anyone can help???

got a 1994 e34 540i 4.0 v8, auto, goes great just bought it 1 week ago, but noticed that lights on display keep coming on: brake light, tail light, brake linings, owners handbook, lic plate light...

brake light and tail light and lic plate light only come on when i turn on headlights, the other 2 always..
cant understand why? also dip beam error???
i checked wires in trunk, near hinge and found 5 wires bent and broken, but will fix that soon, do you think that has something to do with these errors?
also cruise control doesnt work...dont know wat that problem could be?

anyway, if someone could help me out here, would appreciate it very much....
by the way, anyone know where i can get a sunroof seal from? needs replacement..
thanks...

longdom..
I also have the same problem with a 530i. Initially, the problem begun with brake lights that does not switch off and all sort of warning on the dash. Found out faulty brake switch under the dash. Replace the 4 pole brake light switch which seems to solve the brake light on problem but the error messages remained. Next, check the LKM but all is in good condition. Also clean and replace all light bulbs and still have the same problem.

So far got no idea what cause the problem. Flawed system design?
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#15 (permalink) Old 02-01-2009, 04:32 AM
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changed lkm, got rid of dip beam error, and brake light error...but still have lic plate light and owners handbook, what the hell is owners handbook????

heater doesnt work, but got a new heater valve, should do the trick, i can hear whining coming from old heater valve, must be stuck or something...

cruise control is still dead, have no ideas as to why yet....

found cut brake sensor wire, so this explains the error...
found blown tail light bulb, explains that error too...

this is an update, but still working on other problems.............
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