Unusual Dash Lights Problem.
 

Tonight for no apparent reason while driving all the dash lights (orange glow) went out. Along with this the turn signals stopped working and I was unable to get the high beams to come on. (Low beam only.) After I got home I found that the hazard switch was inop and that the low beams came on with the ignition regardless of the headlamp switch position. A few time in the 5 minute journey home the dash lights would flash on then off again. Very unusual!

Bump!

Should I assume that you rolled the reostat up and down to try and reactivate the dash lights?

Yep and hit the hazard switch and turned the light switch on and off and also the ignition. It seemed to have a mind of its own! I expect it to be the lights computer but now that it has cooled off nothing will show. Waiting for stealer to call.............

Have check out the fuses? Cause last time the fuses blown which I was driving down the road, the whole electrical system on the car went...all funny.

Just spoke with dealer. Suspect the computer is crashing with intermittent problem. Being flat bedded in to have the problem fixed??? I checked while waiting and now it's cooled down everything works again.

Isn't that amazing that you X5 always behaves nicely in the hands of the dealer? That's what happened to mine whenever they brought it to them for problems. "Sorry, but we can't reproduce it".

As it's their dime I'm going to make them keep changing things until it goes away.
If it were my dime I'd trade it!

I believe the exact terminology is "Can not duplicate, vehicle is operating at manufacturers specifications"

Just checked the wiring diagram. There are 4 fuses connected to the lights computer. Dealer suspects computer has problem. Overnight stay at least!

Update!
 

"Can not duplicate, vehicle is operating at manufacturers specifications"

Word for word. "Can we keep it overnight again and see if I can get it to appear. BMW will not allow me to replace the lights computer."

There is going to be an X traded soon!

SURPRISE! LKM defective. New module being sought. Could be another 3 days with dealer.

New LKM has to be "overnighted"!

FYI FYI FYI

The LKM records fault codes in the dash module not the regular computer. Discovered by accident by dealer/tech today. FIRST they heard of it!!!