Strange happenings with my 540i's radio & steering wheel

[FSalari]

I have a 1998 540i and when I start it the radio display is blank and no sound, even though the radio is on. After I drive awhile the radio comes on and may stay on for a long period or sometimes goes blank again in a few minutes. When it is blank (but on with no sound) and I push my horn, the horn doesn't blow and the steering wheel begins to go up and down. When the radio is playing properly the wheel doesn't do this and the horn blows. Has anyone had or heard of this freaky thing happening, or should I assume there are some extraterrestial beings in my dash?

 

[535iracer]

Its probably not ET just some faulty wiring. The E39s are known for this, unfortunately...

 

[Hoot]

I almost purchased a 98 528i with this same issue. From what I found out is that the ignition switch needs replaced. I think the part is about $50 and isn't too hard to replace. Hope this helps.

 

[LyzardKing]

I had a 99 528i that would do this occasionally. It seems to have gone away by itself, though. I presume the wires shuffled themselves proper.

 

[J to the O]

Replace Iginition Switch

I know its the ignition switch inside the steering Column. I had the same problem with my 528 BMW.

 

[FSalari]

Thanks for all your help. It was the ignition switch. $122 installed and fixed the problem.
Thanks again for the tips on the igntion switch.

 

[nate_ids]

Ignition Switch

If you replace the ignition switch, do you have to re-key the car or does your existing key work? Did you replace the ignition switch yourself or did you have to take it to a BMW repair facility?