Hi
Anybody any advise on this
R56 2007 cooper s sometimes miss fires between 2000 and 3000 revs sometimes.
normally around 2800 revs it happens just like the plugs are not firing. Then it kicks in and away it goes.
when over 3000 revs no problem or at full song.
Changed All spark plugs.
I have changed two of the Ignition coils, thinking of changed the rest.
61000 miles.
Or is it something else ??
I was talking to another Cooper s owner who had the same problem shortly after buying it but his was under warranty so he just brought it back and it was fixed so he does not know what they did.
Thanks for looking
Regards Brian