Posted on Bimmerforum but no response, just looking for a bit of advice
Had the car for about ten months or so now and had no issues until recently.
I seem to have an very intermittent fault whereby the car seems to struggle to start perhaps 1 time out of 30. The car turns over and fires but then seems to chug and sound like a diesel with no response from the throttle, I would expect a touch of the pedal to bring it to life. If I turn it off and start it again it will then fire up no problem. There seems to be no pattern, ie warm/cold start. just driven/left for 2 days.
I started to think it was when I was low on fuel but happened today with half a tank. Car drives perfectly, just had oil and plug service but the problem was there before this was done.
Any thoughts on where to start??