Trans. Failsafe, engine. Failsafe OUT THE BLUE

[upallnight]

Were you listening to the radio in the car and had the doors opened? You might have drained the battery.

Or

If you can determine if you are getting voltage to the starter solenoid, then your starter is DEAD.

[TwinsPoppa]

Originally Posted by X5kindathing

Yesterday I parked the car (2006 x5 4.8is Dinan stage II with 50k on the odo) in the driveway, detailed it and when I went to start it .... Nothing! All the clusters are working all lights are on just nothing! Turn the key and nothing.

It has given NO previous warning from an engine or transmission stand point.

It needs to be noted that just the day before and for e firt time the suspension self leveling warning came on but went away. I have brand new front airbags.

I just replaced my battery as the old one tested as "dead" yellow light and confirm by the autozone people as only putting out barely 11 volts.

Does the code need to be cleared before the car can start again ?

Any ideas what to try next ?

Thanks

Did you have some recent work done? I noticed you mentioned you have brand new front airbags. Do you mean you replaced the front air struts?

I suspect something was damaged during some recent work - maybe some sensors. Probably related to your SLS and multiple problems. Easiest way would be to get it scanned for codes with something like a GT1. Do NOT erase any codes you find. You can use them to follow the test plan.

If you don't have access to a GT1, again review recent work done and see if something was damaged or not connected if it was unplugged. Maybe something loose. Lots of variables.