SINCE PURCHASING THE CAR THIS YEAR I HAVE HAD A ROUGH IDLE OR MISS ONCE THE CAR HAS WARMED UP AND THE RPM DROPS TO 500. (96,000 MILES)
SYMPTOMS: -LIGHT TO HEAVY SHAKE AT STOPS
-OCCASIONAL SHUTOFF OF THE ENGINE (AT STOPS)

WHAT HAS BEEN DONE:-90,000 MILE SERVICE (MBZ)
- REPLACE PLUGS, IGNITION LEADS, FUEL INJECTORS, FUEL FILTER, DISTRIBUTER CAP AND ROTOR, GENERAL MAINTENANCE.
SOME WORK HAS BEEN DONE BY THE DEALER AND SOME (CAP, ROTOR, INJECTORS) BY MYSELF. WHAT IS NEXT.. I NEED TO FIX THIS PROBLEM AND CANT SEEM TO FIND A SERVICE SHOP I TRUST. MY TECHNICAL COMPETENCE LEVEL IS LIMITED ON THIS CAR BUT I WILL GLADLY FOLLOW STRONG ADVICE / PROCEDURES.
THANKYOU.