BMW 528I E12 1981 Electric problem

npadro77 · Post by **npadro77** » Sat Dec 05, 2009 6:28 pm

It was running fine yesterday but when i tried to start it today It has no power. So i tested the battery and its fine. Any hidden Fuses or relays?

alotawatts · Post by **alotawatts** » Sun Dec 06, 2009 3:22 am

Do you hear a click when you turn the key ?

http://www.firstfives.org/bboard/viewto ... light=nope

npadro77 · Post by **npadro77** » Sun Dec 06, 2009 9:19 am

When I try to start the car ,there is no noise , nothing is totally death
not light is like does not have any battery . However I text the weir
goes to the altenator and the battery it got power is good . But nothing
in the inigcion swich .

npadro77 · Post by **npadro77** » Mon Dec 07, 2009 6:20 pm

thanks all! i fix

T.Hanson · Post by **T.Hanson** » Tue Dec 08, 2009 2:15 am

What did you fix ?

npadro77 · Post by **npadro77** » Tue Dec 08, 2009 6:51 am

wire from the ingnition swich from the battery has been bent and it hasn't been giving me any power. but now i fixed it i changed it to a new one. thank you all

canadaguy · Post by **canadaguy** » Wed Jan 27, 2010 2:04 pm

Hi there,
I have a similar problem, perhaps somebody has an idea. In "ignition on" everything seems to be fine, lights are on, fuel pump is doing something. But if I turn the key into start position nothing is happening for a while. Then, sometimes after some seconds, the starter starts to turn and everything is fine. Sometimes nothing happens at all, no click, nothing. Sometimes the starter starts to turn for a millisecond if I go from "start" to "ignition on" position, which is not really helpful either. And it seems like temperature dependent: Now we have here minus 20 degree C, and it's really bad (this morning I've tried it for about 15 minutes before it worked. It's a lot of fun with these temperatures...). Above 0 degree it's basically fine. Any ideas? Could the starter solenoid cause this problem? Battery is new, connections on the battery are clean.
Alexander

alotawatts · Post by **alotawatts** » Thu Jan 28, 2010 5:39 am

canadaguy wrote: And it seems like temperature dependent: connections on the battery are clean.

Clean connections don't mean zip if the connectors are flakey. Clip off and replace the connectors that gang to the pos. battery terminal. Don't rule out the main positive cable either. I have had some intermittent 'turn key - no joy' and discovered that my main pos. cable to the battery was loose inside it's battery connector.
A new ground strap goes without saying.

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