I have the 2.5L 6 cylinder engine and when shifting gears and accelerating the engine sputteres/misses/hesitates, then clears itself out. Twice it has turned on the check engine light. Other than that it has been a great car. It has 92,000 miles.
engine sputters/misses when accelerating on 1999 BMW Z3
by the lizard in Dayton, OH on April 17, 2009
ANSWER by patrick mannion on April 17, 2009
The Check Engine Light having illuminated means there is a code stored in the computer of your car that will indicate what the computer in your car saw the moment it experienced the misfire or drivability problem. A scan tool is needed to to retrieve the codes from your computer through a 16 pin diagnostic socket under the dash of your car. Any repair shop should have a diagnostic scan tool, a BMW specialty shop or dealer may have a more advanced scan tool but your problem may be a failing ignition coil.