I have a 2010 Cooper, not an S, with an automatic transmission at 43,000 miles. Lately, it has developed a cough when the engine is fully at operating temperature , but only when I’m stopped at a light or if I put the car into neutral or park.

If the car is simply stopped, in Drive, it might cough once every 10 or 20 seconds. If I put it into Neutral or Park it coughs more often.

The car does not do this when it’s less than at full operating temperature.

Any ideas?

 

Anyone? Anyone?

 

my GF's car had something like this last night, one of the coils went, making it run on 3 cyl, you might have a faulty connection on a coil/plug. but hers was all the time, wether in drive or park. engine would rattle and vibrate as well

 

I brought the car into the our local dealership, Habberstad, Huntington, NY. They recommended and carried out a fuel injection induction cleaning and they changed the spark plugs at 43,000 miles.

The car runs very well now, I'm a bit surprised to hear that there was carbon build up on a plain Cooper, but I drive in slow Long Island traffic all the time. Maybe that was the cause, the poor thing never gets to run long and fast.