This is a 2005 Mini Cooper S 6speed manual, I don't know a lot about these cars and I'm guessing that it's an R53. I've been bump starting this car for about a month. It has a new starter, starter relay, no service engine light, the battery is good, the alternator is good. If I turn the key in the engine the solenoid fires off for a bit then quits. If I hot wire the 16 gauge black\yellow wire starter terminal the engine cranks but doesn't fire with the key in the running position or in the starting position. I think the problem is the 16 guage wireblack\yellow wire, but I'm not sure and I don't know where it goes and can't chase it without pulling the whole engine apart.

If you've seen this problem before or know where that wire goes, or know more than I do about my car I'd appreciate your input.

The symptoms if trying to start it normally: the solenoid fires briefly, the head lights flash, some times the immobilizer or something (I really don't know what or where that is) will beep, and when I take the key out of starting position the dash gauges will fiddle around, and the clock and tripometer will reset. If I bump start it no service light and runs like a champ.

Thanks!

 

Check/replace the crank position sensor. This sensor usually don't throw a code, and will cut off the fuel pump as a safety measure. Also, is your battery in a good state?

 

Have you checked the clutch switch? If the clutch is not depressed when starting the starter will not turn. Bad switch may be your culprit.

 

I think I'd check the ignition switch & local wiring, it seems to be a weak spot. You might try a little electronic switch cleaner on the key & barrel
& see if anything changes.