Hi I have a 2005 R53 that would loss all electrical power while driving. It actually happens when I'm usually making a turn in 1st going into a driveway or parking spot or while backing up into the same. The car will just loss all power momentarily and then come back on!! Except for the other day. The car lost power ( no dash lights..nada), no motor cranking or anything. Later after bouncing the car power came back and would crank but no turn over. Then later it started. Any ideas??

 

How old is the battery?

 

Less than 1 year

 

check the ground wires...both under the hood by the passenger side motormount, and the battery.....

 

turning over = cranking......
are you saying you can spin the motor, but not start it?!

 

I will check both grounds, Thank you

 

Yes, turning over = cranking. It cranked numerous times without starting with no smell of gas, I had a full tank. Then I let it sit for about 30 minutes and then it started.

It seems to happen when I have the clutch depressed. Is there a know problem with an electrical connection at the clutch?