2005 e53 strange problems

[ioanradupavel]

hy there!
I have been reading a lot of posts on the forum but haven't found the answear to my problem.
my x5 started to act strange a few day ago when I was returning from a trip around the country side. when i entered the city, the signal light sound and dash board leds didn't function or were delayed. the computer started to act strange, like it was reboting or something, the radio controls didn't respond, nor any other media or navy controls. the engine was still runing and from this point of view the car acted normaly. but when I turned off the ignition and took the key out, the radio, ventilation, and all the electronics were still working like the engine was still running even if i took the key out and the engine was stopped. after this, I took off one of the battery contacts to try to reset the computer. it worked normaly for 2 day but the problem occured once more. and finnaly, this morning the car didn't start at all. it doesn't even crank the engine. it simpl doesn.t start. and when I take the key out of the contact, the ventilation, and the dash board light are still on. not to mention that the auto light led is blinking and the water temperature gage nidle is going like crazy. I don't know what the problem is. please, if you can help me, try to post some answears. I'll be glad to give more details if needed.

best regards, radu.

[sobi6111]

First try to disconnect your battery negative for half and hour and then connect it,it shoudl reset computer at least and try to start up the car. Hope it helps,if not then it might be computer gettign crazy and needs reprogramming probably or replaced. Good luck!

[ioanradupavel]

thanks. i tryed that but after two days the problems occured again. today I had it diagnosed. it has some errors. some say that the control panel lack the link with the engine. there are other errors as well. some say something about a short circuit, others about the lights control. I think i'll make a trip at the dealer and have them look at it. if someone alse had the same problems, please post an answear.

regards,
radu

[killcrap]

Replace the ignition switch

[Tleong]

i didn't have all your problems, but I had the radio stay on after the engine was turned off. Worse, none of the controls were responding so I couldn't shut it off. I actually just waited in the car for about 5 minutes (because i knew my battery would die if i left the radio on overnight), i turned the ignition back on, and the radio controls were back on. This has only happened twice. Last time was a few months ago. Was not able to replicate the problem.

[ioanradupavel]

do you think the ignition swich might be the problem? does it not fully recognize the key? eventually the car started. but it still has those errors. it asks me for the security code and after entering it it starts. it behaves very strange.