My 2002 c230k, 6000 mi, has been experiencing momentary power drop-offs recently. These have occurred:

1. making a turn at slow speed
2. accelerating from stop
3. cruising at 65, not on cruise control
4. pulling into parking spot, foot off gas, on brake

car has no power, seems to want to stall, then power comes up
again - less than second.

did not see any drop in rpms, although by the time I would have noticed power was up again

taken into dealer to check, did not happen to them and they could find nothing unusual

just started about a month ago, only has occurred a total of 5 times

only prior service the ESP/BAS flashing problem which was corrected. Service A not due for another 4000 miles.

Any suggestions?