1998 E39 528 Touring Radio and dash losing power

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 will try to explain all the symptoms as best I can.

Before I do that I will confirm that the Battery is a new BMW item and
it is putting out 12.5v and is charging at 14v with everything I can
think of switched on. So I think I can safely eliminate the Battery and
Alternator.

So on to the symptoms.....

It started last week when the radio suddenly cut out, the time
display also disappeared. At the same time the turn signal indication
on the dash and the sound stopped working, even for the hazard lights.
BTW the indicators still work fine.

All fuses seem ok. If I turned the ignition off and on then the
radio came on again but I couldn't change channels or adust the volume.

When I went back to the car 10 hours later everything worked fine !!!!

That was late last week and tomorrow it reoccurred only for about 2
hours into the journey the turn indicators worked fine and the radio
came back but at different times it was variable if I could control it
or not. This was all WITHOUT switching the ignition off or on. 

Finally the self leveling light is on o the dash but it seems to be working ok.

Well that is the end of the symptoms. So far everything else is working fine.

I think it might be the ignition switch but having thoughts that it
might be a relay or specific control unit. I have tried to work out
what relays control this but can't isolate which apply.

Thanks for reading and I hope you can help.

Thanks

Edited by kevin

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kevin Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Bavarian-Board Contributor Joined: 29-November-2002 Location: Camberley, Surrey Status: Offline Points: 3189	Post Options Post Reply Quote kevin Report Post Thanks(0) Quote Reply Topic: 1998 E39 528 Touring Radio and dash losing power Posted: 04-March-2007 at 10:40
	will try to explain all the symptoms as best I can. Before I do that I will confirm that the Battery is a new BMW item and it is putting out 12.5v and is charging at 14v with everything I can think of switched on. So I think I can safely eliminate the Battery and Alternator. So on to the symptoms..... It started last week when the radio suddenly cut out, the time display also disappeared. At the same time the turn signal indication on the dash and the sound stopped working, even for the hazard lights. BTW the indicators still work fine. All fuses seem ok. If I turned the ignition off and on then the radio came on again but I couldn't change channels or adust the volume. When I went back to the car 10 hours later everything worked fine !!!! That was late last week and tomorrow it reoccurred only for about 2 hours into the journey the turn indicators worked fine and the radio came back but at different times it was variable if I could control it or not. This was all WITHOUT switching the ignition off or on. Finally the self leveling light is on o the dash but it seems to be working ok. Well that is the end of the symptoms. So far everything else is working fine. I think it might be the ignition switch but having thoughts that it might be a relay or specific control unit. I have tried to work out what relays control this but can't isolate which apply. Thanks for reading and I hope you can help. Thanks Edited by kevin
	Kevin '04 E46 330Ci Convertible '08 E61 535d Touring (TorqueMeister Towbarge) �95 E34 M5 �89 E30 M3 (Cecotto)

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