For some time, during accelerations, the engine cuts a fraction of a second (loss of 100rpm and restarts) and this on a few occasions. the engine light never comes on. when I drive normally on the highway it does not happen but when I accelerate, the engine misses. I have an appointment in 2 days at MB and I would like to know more before he changes several parts. has this happened to anyone? gas pump?? filtered?? electronic?? thank you for your comments.