There are 3 stored owner reports matching the engine leading-label group for the 2004 Mercedes-Benz ML-Class in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)TL* THE CONTACT OWNS A 2004 MERCEDES BENZ ML350. THE CONTACT STATED THAT WHILE THE VEHICLE WAS IN PARK, THE CONTACT NOTICED FIRE COMING FROM THE ENGINE COMPARTMENT. THE FIRE DEPARTMENT EXTINGUISHED THE FIRE. A POLICE REPORT WAS FILED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 117,000.
WHILE DRIVING A MERCEDES ML350 ON THE ROAD, THE ENGINE TURNED OFF. I COASTED TO A STOP ON THE SHOULDER OF THE ROAD. WHEN I TRIED TO RESTART, THE STARTER CRANKED BUT THE ENGINE WOULD NOT START. WHEN I TRIED AGAIN AN HOUR LATER, THE ENGINE STARTED NORMALLY. THIS HAPPENED AGAIN, LATER IN THE DAY. IF I HAD BEEN ON A FREEWAY, IT WOULD HAVE BEEN QUITE DANGEROUS. I TOOK THE CAR TO A MERCEDES MECHANIC WHO IMMEDIATELY KNEW WHAT WAS WRONG AND HE REPLACED THE CRANKSHAFT POSITION SENSOR. HE SAID THAT THIS FREQUENTLY HAPPENS WITH THE ML350. *TR
DT*: THE CONTACT STATED WHILE DRIVING 35 MPH DURING A DOWNHILL BRAKING SITUATION, THERE WAS A HESITATION BETWEEN BRAKING AND ACCELERATING. THE HESITATION LASTED BETWEEN 2 AND 3 SECONDS, AND THERE WAS NO RPM INCREASE DURING THAT PERIOD. THE VEHICLE WAS NOT TAKEN IN FOR SERVICE AT THE TIME.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 31, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.