Miss Fires

jon65H

New member
Hi All new to the forum.
We are experiencing an intermittent issue namely with a miss fire and the engine running very lumpy.
I have change the Coil packs which sorted the problem but in reoccurs usually just after dropping into sport mode and opening it up.
my question is (not being a mechanic) is there a sensor that is throwing a fault coding (as yellow engine light comes on)
if I turn the car off the issue clear itself , it has also cleared itself after a few minutes driving sedately??
I have spoken to BMW but they want the car in for a full on diagnostic.
I've even taking it to an independent BMW specialist but when I do the problem never presents itself?
Model is 2.3S line registered 2012 48k on the clock had her for 2 years without issue.
 
Have the plugs been changed ?

When was the last service done?

As said previously codes read?

These days with electronically controlled cars it’s the first port of call
 
Not sure on your location, but if you are around either Northamptonshire or Stansted area of Essex at all I will happily carry out a diagnostic for you.

Unfortunately without plugging in it is almost impossible to pin point the issue without guessing.

Paul
 
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