I have 3 issues on my 2006 BMW 750 Li (e66) with 100 000 Km (60 000 mi) on it:
1. SMALL COOLANT LEAK
About every 2 months, I have a "low coolant" warning, usually when I start in the morning. Usually, about there is about 1/8 or 1/10 gallon missing. I haven't noticed any leaks, not on my driveway, at least. Where should I check for coolant leaks? I haven't noticed any white smoke coming from the exhaust.
2. ROUGH IDLE ON STARTUP
I am not sure if this could be related to the previous problem, but it sometimes idles quite roughly when starting (in the morning only). On the worst morning, it feels like there is some misfire. This morning, it did it and I listened to the tailpipe and did hear what seems to be misfire, but just for a few minutes. On 2 occasions, I had to turn off the engine
, the start it again and it went away...
3. DOOR HANDLE
This one started when, for absolutely no reason, whenever I started the car, all the windows came down and the sliding roof opened. They wouldn't close for a few minutes (using door switch). When I did get them closed, they would all open again when I pushed the start button to turn off the engine. Again, I had to wait 2 to 10 minutes to finally get them to stay closed with the engine off. ABOUT THE SAME TIME, MY DRIVER DOOR WOULDN'T SHUT (just bounce), but the mechanical latch seemed OK, I could close it with a pen with the door open. It seems like the car did not know the door was closed and wouldn't close the latch. Since then, when I leave the car for more than about 1 hour, the keyless entry stops working (I use the remote) and the radio needs to reload all the CD's from the CD changer (I can hear it) and forgets which one it was playing. I THOUGHT THAT MAYBE THERE IS A PROBLEM WITH THE DOOR SWITCH THAT LOWERS THE WINDOWS OR THE DOOR HANDLE ITSELF AND THE CAR SHUTS DOWN POWER BECAUSE IT CREATES A POWER LEAK ????
OK, that's it, all my problems!