BMW 2007 X3
suddenly the left turn signal and the high beam lights came on - can not turn them off- also the parking lights and the head light halo lights are on even after the car is shut off and key is removed
Here is what I did to get rid of the problem - why it worked I do not know - maybe there are capacitors that hold voltage and it took a while to disipitate the current.
I disconnected the battery terminals - waited 24 hours - try hooking up - problem still existed
I disconnected the battery terminals and left it for 3 days -
When I connected the battery all was well.
I guess I saved myself a lot of money for the tow, diagnostic and probably replacement of some part that would have not been required. Have put on about 40,000 km since then and no problems.
I guess I got lucky this time - probably not a logical solution - but made sense to me at that time .... why - i don't know - maybe desperation...