There are 8 owner-reported engine complaints for the 2002 Mercedes-Benz ML-Classin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* THE CONTACT OWNS A 2002 MERCEDES-BENZ ML500. WHILE DRIVING 45 MPH, THE VEHICLE ACCELERATED AND THE LOW RANGE WARNING INDICATOR ILLUMINATED. THE CONTACT PULLED THE VEHICLE OVER AND TURNED OFF THE ENGINE. ONCE RESTARTED, THE VEHICLE OPERATED NORMALLY. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE KEY FOB WAS UPDATED AND AN OIL CHANGE WAS PERFORMED; HOWEVER, THE FAILURE RECURRED. THE VEHICLE WAS TAKEN BACK TO THE INDEPENDENT MECHANIC AND THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. WALTER'S MERCEDES-BENZ OF RIVERSIDE (3213 ADAMS ST, RIVERSIDE, CA 92504, (951) 441-6182) WAS CONTACTED AND STATED THAT DIAGNOSTIC TESTING WAS NEEDED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 201,000.
TL* THE CONTACT OWNS A 2002 MERCEDES-BENZ ML320. THE CONTACT STATED THAT THE AIR CONDITIONER FAILED TO TURN OFF WHEN THE ENGINE WAS TURNED OFF. THE CONTACT ALSO STATED THAT THE VEHICLE WAS DIFFICULT TO START. THE CONTACT PURCHASED AND INSTALLED A NEW ALTERNATOR; HOWEVER, THE VEHICLE FAILED TO START. THE BATTERY WAS ALSO REPLACED, BUT THE ENGINE STILL TOOK SEVERAL ATTEMPTS TO START. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC, BUT WAS NOT DIAGNOSED OR REPAIRED. THE CONTACT SCHEDULED AN APPOINTMENT WITH PRIME TIME NISSAN OF SCHERERVILLE (1301 INDIANAPOLIS BLVD, SCHERERVILLE, IN 46375) FOR DIAGNOSTIC TESTING AND REPAIRS. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS UNKNOWN.
TL* THE CONTACT OWNS A 2002 MERCEDES-BENZ ML320. THE CONTACT STATED THAT THE VEHICLE WAS RIDING EXTREMELY ROUGH AND FAILED TO ACCELERATE. THE VEHICLE WAS DIAGNOSED BY TWO INDEPENDENT MECHANICS WHO STATED THAT THE CATALYTIC CONVERTER NEEDED TO BE REPLACED. IN ADDITION, THE VEHICLE WAS TAKEN TO A DEALER WHO STATED THAT THE PART WAS NO LONGER IN PRODUCTION AND THAT THE CONTACT MAY REPLACE THE PART WITH AN AFTERMARKET CATALYTIC CONVERTER; HOWEVER, THE VEHICLE MAY NOT PASS AN EMISSIONS INSPECTION. THE CATALYTIC CONVERTER FAILED ON THE FRONT PASSENGER SIDE AND THE CONTACT WAS UNCERTAIN OF WHO WOULD BE ABLE TO REPLACE THE PART WITH AN OEM CATALYTIC CONVERTER. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE CONTACT WAS WAITING FOR THEM TO DETERMINE A SOLUTION TO REPAIR THE VEHICLE. THE APPROXIMATE FAILURE MILEAGE WAS 150,000.
TL* THE CONTACT OWNS A 2002 MERCEDES-BENZ M430. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 65 MPH THE VEHICLE STARTED TO JERK AND IT SUDDENLY STALLED WITHOUT ANY WARNING. THE CONTACT WAS UNABLE TO RESTART THE VEHICLE AND IT WAS TOWED TO THE CLOSES DEALER. THE VEHICLE FAILURE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE AND CURRENT MILEAGE WAS APPROXIMATELY 40,900. THE VIN WAS UNAVAILABLE.
TL* THE CONTACT OWNS A 2002 MERCEDES BENZ ML320. WHILE DRIVING UP A HILL THE VEHICLE BEGAN TO ACCELERATE VERY SLOWLY. HE PULLED OVER TO THE SIDE OF THE ROAD, OPENED THE HOOD, AND NOTICED SMOKE. WITHIN A FEW SECONDS, THE VEHICLE CAUGHT ON FIRE. HE WILL CONTACT THE MANUFACTURER. THE INSURANCE COMPANY WAS NOTIFIED. THE CURRENT AND FAILURE MILEAGES WERE 76,000. THE VIN WAS NOT AVAILABLE.
TL*THE CONTACT OWNS A 2002 MERCEDES BENZ ML500. THE CONTACT STATED THAT THE VEHICLE WOULD NOT START AND AN HOUR LATER, HE WAS ABLE TO RESTART THE VEHICLE. A LOCAL MECHANIC STATED THAT THE CRANK SHAFT SENSOR CAUSED THE FAILURE. THE CONTACT IS CONCERNED ABOUT THE SAFETY RISK AND THAT THERE ARE NO RELATED RECALLS. THE CURRENT AND FAILURE MILEAGES WERE 117,000.
THE VEHICLE WAS PARKED AT A PARKING LOT FOR APPROXIMATELY 2 HRS. I ATTEMPTED TO START THE ENGINE. IT STARTED THEN ABRUPTLY STOPPED. THIS HAPPENED 3 TIMES. UPON THE 4TH ATTEMPT THE ENGINE WOULD NOT START AT ALL. I LOOKED AT THE DASH LIGHTS THE COMPUTER WAS SHOWING ERROR START. I PROCEEDED TO JIGGLE THE KEY AND EVEN USED THE SECOND MASTER KEY. THE CAR WOULD NOT START AT ALL. I TALKED WITH MB ROADSIDE SERVICE THEY SUGGESTED CLEANING THE KEY, JIGGLING THE RING AROUND THE IGNITION KEY AREA. NOTHING WORKED. AFTER 2 HOURS OF ATTEMPTS, I HAD THE ML TOWED BY FLAT BED TRUCK TO THE NEAREST MB DEALERSHIP. EVERY SINCE I HAVE OWNED THE VEHICLE ( 2002) I HAVE COMPLAINED ON AT LEAST 3 OCCASIONS EVERY YEAR, THAT THE CAR WOULD NOT START AT TIMES AND I WOULD JIGGLE THE KEY AND KEEP TURNING THE VEHICLE ON AND OFF SEVERAL TIMES. IN THE PAST IT FINALLY MANAGED TO START. WHEN I WOULD REPORT THIS TO THE DEALERSHIP THEY WOULD STATE THERE WAS NOTHING THEY COULD DO UNTIL IT ACTUALLY WAS DOING THE SAME THING WHEN I BROUGHT IT TO THEM. I KNOW THERE IS SOME PART THAT HAS BEEN DEFECTIVE FROM DAY 1 AFTER WE PURCHASED THE CAR. THE MERCEDES DEALERSHIP HAD THE CAR FOR 3 DAYS. THEY FOUND A FAULTY TRANSPONDER RING AND ALSO ADVISED ME THAT MY SECOND MASTER KEY WOULD NOT COORDINATE WITH THE COMPUTER AND THE NEW TRANSPONDER RING. IT READS ERROR START. JUST LIKE IT WAS DOING WHEN I HAD IT TOWED. I HAVE THE MERCEDES RETURNED TO ME 6 DAYS AND I GET IN THE CAR AND THE GEARS ARE LOCKED. I TURN THE ENGINE ON AND OFF FOR 5 MINUTES BEFORE I CAN GET THE GEAR TO SHIFT INTO REVERSE. I CALLED THE MERCEDES DEALERSHIP. THEY WANT ME TO BRING IT BACK TOMORROW FOR THEM TO CHECK SOME SWITCH COMPONENT WHICH MAY BE DEFECTIVE. THIS ML 500 ONLY HAS 51,806 MILES ON IT. HOWEVER, I DO NOT FEEL COMFORTABLE DEPENDING ON IT. I AM AFRAID I WILL BE OUT SOMEWHERE AT NIGHT OR IN AN ISOLATED AREA AND THIS ML 500 WILL NOT START OR THE GEAR BOX WILL BE LOCKED UP. *TR
OIL SENSOR WARNING INDICATOR ILLUMINATED, AND VEHICLE WAS CONSUMING A QUART OF OIL EVERY THREE DAYS. VEHICLE WAS TAKEN TO THE DEALER, WHO DETERMINED THAT ENGINE MUST BE REPLACED. *AK
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.
Data synced from NHTSA on Apr 26, 2026