Originally Posted by erensf
I have the exact same thing, but mine started after replacing the spark plugs. Happens only when the engine is warm, and more often when A/C is off as you described.
I couldn't get the tech replicate this when I took the car in the last two times, so I gave up.
Same thing happened to me after BMW replaced my spark plugs. I fought with them for a month before I gave up. I'm going to be replacing my sparks again soon after 25k miles on the current ones.
Did your COBB flash make it better or worse?