FaultScore

1999 Mercedes Benz ML320 engine problems

36 of the 164 complaints about the 1999 Mercedes Benz ML320 are about the engine — 22% of everything reported for this model year. Half of the failures with a mileage on record happened before 73,000 miles.

C

36

Complaints

1

Crashes

0

Fires

0

Injuries

Exactly what failed

Belts AND Associated Pulleys 13 36.1%
Engine 6 16.7%
Gasoline 6 16.7%
Engine AND Engine Cooling 6 16.7%
Catalytic Convertor 3 8.3%
Exhaust System 1 2.8%
Emission Control 1 2.8%

Engine & Cooling across every Mercedes Benz ML320 year

1998 33 29.7%
1999 36 32.4%
2000 32 28.8%
2009 10 9.0%

What owners said

Filed with NHTSA, in their own words.

at 72,000 miles Sacramento, CA

ENGINE AND ENGINE COOLING

TL* THE CONTACT OWNS A 1999 MERCEDES BENZ ML320. WHILE THE CONTACT WAS DRIVING APPROXIMATELY 35 MPH, THE ENGINE STALLED WITH THE ILLUMINATION OF THE ENTIRE INSTRUMENT PANEL. THE ENGINE FAILED TO RESTART AND THE VEHICLE WAS TOWED TO AN AUTHORIZED DEALER WHO STATED THE FAILURE WAS CONTRIBUTED TO THE CRANK SHAFT POSITION SENSOR. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 72,000. UPDATED 10/31/11 *BF UPDATED 12/08/11

NHTSA complaint #10428967 — an unverified report by a vehicle owner.

at 87,000 miles Livermore, CA

ENGINE AND ENGINE COOLING

DRIVING HOME FROM WORK THE CAR'S IDLE WENT TO ZERO. THIS HAPPENED HALF-WAY HOME. ITS A 30+ MILE DRIVE FROM WORK TO HOME. ESSENTIALLY THE CAR JUST QUIT OPERATING WHILE MERGING ON THE INTERSTATE. POWER STEERING WAS LOST AND THIS LEFT MY 8 MONTH PREGNANT WIFE STRANDED IN THE MIDDLE OF THE MERGING LANE TO THE INTERSTATE WITHOUT THE CAPABILITY TO RESTART THE CAR. SUCCESSIVE TRIES TO START THE CAR FAILED. ONLY AFTER 5 MINUTES THE CAR WAS ABLE TO START AND BE PULLED OVER TO A SAFE PLACE. TRIED A 2ND TIME TO DRIVE IT HOME AND IT LEFT ME STRANDED AGAIN WITHOUT IT BEING ABLE TO RESTART. HAD TO BE TOWED ON A FLATBED TOW TRUCK HOME THE REMAINDER OF THE DRIVE HOME.

NHTSA complaint #10267275 — an unverified report by a vehicle owner.

at 139,000 miles Nashville, TN

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR

TL*THE CONTACT OWNS A 1999 MERCEDES BENZ ML320. WHILE THE CONTACT'S SPOUSE WAS DRIVING APPROXIMATELY 35 MPH, THE VEHICLE COMPLETELY SHUT OFF WITHOUT WARNING. THE VEHICLE HAD TO BE RESTARTED AND WAS DRIVEN TO A MECHANIC. THE MECHANIC DISCOVERED THAT THE CATALYTIC CONVERTER NEEDED TO BE REPLACED. THE VIN WAS UNKNOWN. THE CURRENT MILEAGE WAS 150,000 AND FAILURE MILEAGE WAS 139,000.

NHTSA complaint #10225464 — an unverified report by a vehicle owner.

at 129,926 miles Jupiter, FL

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR

TL * - THE CONTACT RECEIVED RECALL 03V121000. THE CONTACT TOOK VEHICLE TO MERCEDEZ BENZ OF PALM BEACH JANUARY 3, 2007, AND WAS DENIED ARECALL REPAIR. THE CONTACT WOULD LIKE THE REPAIRS TO BE DONE UNDER THE RECALL. THE CONTACT STATED THAT HE RECEIVED THE SAME RECALL LAST YEAR AND CHOSE NOT TO ADDRESS IT AT THAT TIME. THE VEHICLE HAS HAD SEVERAL FAILURES , AND WAS NOW BEING DENIED REPAIR SERVICE. *AK THE COSUMER TOOK THE VEHICLE TO THE DEALER AND THEY STATEDTHERE WAS NOTHING WROG WITH THE VEHICLE. THE CONSUMER SATED WHILE DRIVING, THE THE EXHAUST BROKE IN HALF AT THE WELD. UPDATED 01/22/07.

NHTSA complaint #10177747 — an unverified report by a vehicle owner.

at 78,446 miles Portland, OR Crash

ENGINE AND ENGINE COOLING:ENGINE

I AND MY 7 YEAR OLD DAUGHTER AND HER FRIEND WERE ENTERING MY DRIVEWAY ON AUG 14,2006, PAUSED TO OPEN MY GARAGE DOOR FROM THE CAR AND I WAS SLOWLY MOVING IN. ALL OF A SUDDEN CAR WENT OUT OF MY CONTROL IN A FLASH THAT I DID NOT EVEN HAVE TIME TO REACT. IT WENT AND HIT OUR OTHER PARKED CAR IN THE GARAGE WITH SUCH A HUGE FORCE THAT THE SECOND CAR LITERALLY WENT AND TORE THE BEDROOM WALL. OUR SECOND CAR IS BADLY DAMAGED ON THE FRONT, BACK AND ONE SIDE (SCRAPING A POLE IN GARAGE) AND WALL NEEDS FIXING TOO. I TRULY SUSPECT THERE IS SOME MECHANICAL PROBLEM FOR THE SUDDEN/UNINTENDED ACCELERATION THAT LED TO THIS UNEXPECTED BEHAVIOR. SO FAR WE FOUND THE IGNITION GOT JAMMED (COULD NOT START AND HAD TO BE TOWED IN), OTHER THAN THE BUMPER/FRONT DAMAGES. CAR IS STILL IN THE BODY SHOP FOR REPAIRS, ONCE FINISHED IT WILL BE TAKEN TO THE DEALER FOR FURTHER ANALYSIS AND CHECK UP.

NHTSA complaint #10167609 — an unverified report by a vehicle owner.

at 72,000 miles Fresno, CA

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR

DT: THE CONTACT STATED THAT THE CATALYTIC CONVERTER CRACKED ALONG THE WELD THAT ATTACHES TO THE EXHAUST PIPE. THIS PROBLEM CAN NOT BE CORRECTED DUE TO A LACK OF PARTS. THERE WAS A TEMPORARY WELD PERFORMED, BUT IT HAS NOT CORRECTED THE PROBLEM.

NHTSA complaint #10141959 — an unverified report by a vehicle owner.

at 72,460 miles Virginia Beach, VA

ENGINE AND ENGINE COOLING:ENGINE

DT: THE CONSUMER STATED THAT E OIL FILTER HOUSING FAILED. WHEN THE FILTER HOUSING FAILED THE OIL SPRAYED ALL OVER THE ENGINE AND THE MANIFOLD. THE OIL HAD BEEN CHANGED ON 7-30-2005. THE OIL FILTER ON FAILED ON AUGUST 1, 2005. THE OIL FILTER HAD BEEN TIGHTENED AND CHECKED. THE VEHICLE RAN NORMALLY AFTER THE OIL WAS CHANGED AND THE VEHICLE WAS STARTED. THE OWNER CHANGED THE OIL HIMSELF. THE OIL FILTER TAKES 8 ' QUARTS OF OIL. CONSUMER HA NOT TAKEN THE VEHICLE TO THE DEALERSHIP. INSTEAD, HE PURCHASED AN OIL FILTER,A PLASTIC HOUSING THAT HOLDS THE FILTER) AND CORRECTED THE PROBLEM HIMSELF. CONSUMER TALKED TO THE DEALERSHIP, AND THEY SAID THAT THE PART WAS NOT COVERED BY THE WARRANTY. TCONSUMER HA NOT CONTACTED THE MANUFACTURER. CONSUMER SAID THAT THE OIL FILTER DESIGN CHANGED SINCE THE OIL WAS CHANGED LAST, AND THIS NEW DESIGN WAS SUPPOSE TO BE AN IMPROVEMENT.*AKI

NHTSA complaint #10131231 — an unverified report by a vehicle owner.

at 73,000 miles Baltimore, MD

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

FAILURE OF HARMONIC BALANCER, AN EVENT THAT HAS OCCURRED ON MANY MERCEDES WITH THIS DESIGN FOR THE HARMONIC BALANCER. NEW COVER, OIL PAN. AND BALANCER NEEDED.

NHTSA complaint #10100735 — an unverified report by a vehicle owner.

at 87,000 miles SAN Clemente, CA

ENGINE AND ENGINE COOLING:ENGINE

WHILE DRIVING A LOUD NOISE CAME FROM THE FRONT OF THE ENGINE. I TOOK THE CAR TO THE DEALER AND THE CRANKSHFT PULLEY HAS FAILED MAKING A HOLE IN THE OIL PAN. THE PULLEY AND THE OIL PAN WERE REPLACED AND FOUND OUT THAT THIS KIND OF PREMATURE FAILURES HAS HAPPENED WITH THIS MODEL. THE DEALER WILL NOT PICK UP THE FULL COST FOR REPAIRS SINCE THE CAR HAD 85000 MILES. I THINK MB REALIZES THAT THEY HAVE AN ISSUE WITH THIS TYPE OF FAILURES BUT WILL NOT DO A RECALL.

NHTSA complaint #10093066 — an unverified report by a vehicle owner.

at 93,000 miles Bloomsbury, NJ

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

1999 MERCEDES ML320 HARMONIC BALANCER. I WAS AWARE OF THE INVESTIGATION BEING PERFORMED AND HAD MERCEDES CHECK THE BALANCER IN JANUARY. THEY SAID IT'S FINE. ON 9/6/04, IT FAILED CAUSING $1500 IN DAMAGE. I WAS NOT INJURED BECAUSE I KNEW NOT TO DRIVE THE VEHICLE AFTER FAILURE. MERCEDES NEEDS TO RECALL THE HARMONIC BALANCER. IT IS FAILING ON MOST VEHICLES AND CAUSING EXTENSIVE DAMAGE.

NHTSA complaint #10090612 — an unverified report by a vehicle owner.

at 66,000 miles Kingsport, TN

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

FAULTY HARMONIC BALANCER IN FLY WHEEL 1999 ML 320, 66,000 MILES NHTSA ACTION NO.PE03058.

NHTSA complaint #10086740 — an unverified report by a vehicle owner.

Clovis, CA

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

THE VEHICLE VIBRATED UNCONTROLLABLY WHILE DRIVING. THE DRIVER HAD DIFFICULTY TO MAINTAIN CONTROL OF THE VEHICLE. HOWEVER, THE DRIVER WAS ABLE TO PULL OVER AND THE VEHICLE WAS TOWED TO THE DEALER FOR INSPECTION. THE MECHANIC INFORMED THE DRIVER THAT THE PULLEY ASSEMBLY NEEDED TO BE REPLACED. PLEASE PROVIDE FURTHER DETAILS.

NHTSA complaint #10083445 — an unverified report by a vehicle owner.

at 61,230 miles Clovis, CA

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

(1)VEHICLE WAS MAKING A LEFT HAND TURN AND BECAME ALMOST IMPOSSIBLE TO TURN STEERING WHEEL. (2) CRANKSHAFT DAMPENER BECAME SEPARATED AT POINT OF RUBBER VULCANIZED AND CAUSED SERPENTINE BELT TO COME LOOSE LEAVING POWER STEERING TO STOP WORKING ALONG WITH ALL OTHER PULLEYS RUN BY THE SAME BELT. (3) DAMPENER AND BELT WERE REPLACED. (OLD PARTS ARE AVAILABLE) THIS IS AN EXTREMELY DANGEROUS SITUATION THAT MY LOCAL DEALERSHIP SAYS IS HAPPENING VERY FREQUENTLY. NEW TYPES OF REPLACEMENT DAMPENERS HAVE BEEN CHANGED SIX (6) TIMES IN THE LAST FIVE (5) YEARS IN THE PARTS BOOK. SEVERAL LOCAL MECHANICS SAY IT'S A VERY COMMON PROBLEM AND THEY WONDER WHY A RECALL HAS NOT BEEN ORDERED. IT WOULD BE VERY EASY TO FIND OUT HOW MANY CRANKSHAFT DAMPENERS HAVE BEEN ORDERED AND REPLACED BY BOTH DEALERS AND PARTS SALES. AGAIN, LET ME SAY THIS IS A VERY DANGEROUS SITUATION THAT IS VERY COMMON. MY PRIMARY WORRY IS THAT A SMALL PERSON WOULD NOT BE ABLE TO TURN THE STEERING WHEEL IF THE POWER STEERING GOES OUT AS IN THESE BROKEN DAMPENER CASES. I'M A 225 LB MAN AND I COULD BARELY BRING THE CAR TO A SAFE STOP AT ONLY 25 MILES PER HOUR. WHAT WOULD HAVE HAPPENED ON A MOUNTAIN ROAD? PLEASE INVESTIGATE THIS PROBLEM FOR EVERYONE'S SAFETY. THANK YOU!!

NHTSA complaint #10081155 — an unverified report by a vehicle owner.

Southborough, MA

ENGINE AND ENGINE COOLING

FUEL GAUGE DOES NOT READ CORRECTLY/RUN OUT OF FUEL/ENGINE QUITS LOSS OF CONTROL, POWER BRAKES AND STEERING MAY LEAD TO CRASH/DEFECT

NHTSA complaint #10074445 — an unverified report by a vehicle owner.

at 65,000 miles Phoenix, AZ

ENGINE AND ENGINE COOLING:ENGINE

WHILE DRIVING 30 MPH THE VEHICLE'S ENGINE STALLED WITHOUT WARNING. PLEASE PROVIDE ADDITIONAL INFORMATION.

NHTSA complaint #10073406 — an unverified report by a vehicle owner.

at 110,000 miles Rochester Hills, MI

ENGINE AND ENGINE COOLING

I HAD TO REPLACE THE HARMONIC BALANCER, AND THE MAIN DRIVE SHAFT BEARING ON A 1999 ML MERCEDES WITH THE V-6 MOTOR VIN [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

NHTSA complaint #10051400 — an unverified report by a vehicle owner.

at 104,500 miles Chapin, SC

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

HARMONIC BALANCER FAILURE.

NHTSA complaint #10050659 — an unverified report by a vehicle owner.

at 47,800 miles Brewton, AL

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

CRANKSHAFT PULLEY FAILURE.

NHTSA complaint #10049423 — an unverified report by a vehicle owner.

at 70,190 miles Double OAK, TX

ENGINE AND ENGINE COOLING

THE HARMONIC BALANCER ON MY 1999 MERCEDES ML320 ENGINE TYPE M112 FAILED AND RESULTED IN $4,000 TO REPAIR. THE PART FAILED WITH NO ADVANCED WARNING. EVEN THE MERCEDES DEALERSHIP WHO PERFORMED THE POWER STEERING RECALL TWO WEEKS PRIOR TO THE FAILURE DID NOT SPOT ANY PROBLEM AND THEY KNEW TO BE LOOKING. I WAS LUCKY THE FAILURE OCCURRED IN MY DRIVEWAY BACKING OUT OF THE GARAGE IN STEAD OF ON THE FREEWAY WITH AN IMMEDIATE LOSS OF POWER STEERING OR DESTRUCTION OF THE ENGINE.

NHTSA complaint #10045802 — an unverified report by a vehicle owner.

at 98,000 miles Skillman, NJ

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

CRANK SHAFT PULLEY WHEEL FLEW OFF.

NHTSA complaint #10045214 — an unverified report by a vehicle owner.

at 67,000 miles Loveland, OH

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

I HAVE BEEN AN OWNER OF A 1999 MERCEDES BENZ ML320, BOUGHT USED ABOUT 6 MONTHS AGO. RECENTLY, SOMETHING WENT WRONG ON THIS VEHICLE AND IT STARTED WOBBLING AND MAKING EXTERNAL ENGINE NOISE. SOON, I DISCOVERED THAT THERE WAS A NON-METALLIC PART, A RING, THE SIZE OF A PALM WAS FOUND IN MY ENGINE BAY. I TOOK IT TO MY LOCAL MB DEALER, MERCEDES BENZ OF CINCINNATI OHIO AND RECEIVED A QUOTE OF $3700.00. THE DEALER'S SERVICE MANAGER TOLD ME ITS NOT A PROBLEM COMMONLY SEEN BUT IT SOUNDED LIKE AWFULLY TOO POPULAR AS THEY KNEW EXACTLY WHAT IT WAS WHEN I DESCRIBED ON THE PHONE. THE MERCEDES E320 ENGINE (SUPPOSEDLY 1998 THROUGH MID 2000) CALLED M112 AS WELL AS THE SAME ENGINE OR SUBSTANTIALLY SIMILAR ENGINE ON C280, ML320, E430 ETC., HAS A HARMONIC BALANCER, A RUBBER RING SANDWICHED BETWEEN 2 METAL PULLEY TO ISOLATE THE ENGINE VIBRATION FROM THE REST OF THE PULLEYS BEING DRIVEN BY THE ENGINE. THIS IS WHAT THE SERPENTINE BELT ROTATES ON.OVER TIME, THE POORLY DESIGNED HARMONIC BALANCER PULLEY FAILS, THE RUBBER RING CRACKS, BREAKS OR FALLS OFF, DEPENDING ON THE TEMPERATURE OF THE VEHICLE DRIVING CONDITIONS AND STRESS/LOAD. IT IS TYPICALLY SEEN ON ML320 IN THE RANGE OF 40,000 MILES, BUT IS NOT AS COMMONLY REPORTED AS TYPICALLY IT IS STILL UNDER WARRANTY. ON E320, IT TENDS TO BE AROUND 60 ,000 MILES THOUGH, OFTEN IT COULD BE AS LOW AS 25000 MILES. THE ISSUE IS, WHEN THIS PART FAILS, THE ENGINE TIMING BELT COVER , OIL PAN ETC GET SERIOUSLY GOUGED BY THE ROTATING PULLEY. IN MY CASE THE DEALERSHIP, MERCEDES BENZ OF CINCINNATI IS CHARGING $3700.00 FOR THE REPAIRS. OFTEN DEALER PROFESS INNOCENCE OR LACK OF SIMILAR FAILURE (COMMON ACROSS BOARD, EVERY USER IN MY GROUP MENTIONS THAT THE DEALER SAID 'NEVER HEARD OF IT'.) . THE ISSUE BECOME MORE DANGEROUS AND EXPENSIVE AS WELL, WHEN LESS MECHANICALLY INCLINED PEOPLE JUST KEEP DRIVING UNTIL SOMETHING SMELLS OR MAKES TERRIBLE NOISE ETC., OFTEN RESULTING IN A MIDDLE OF THE ROAD COMPLETE BREAKDOWN AND SEIZE OF THE ENGINE.

NHTSA complaint #10043386 — an unverified report by a vehicle owner.

at 79,120 miles Thousand Oaks, CA

ENGINE AND ENGINE COOLING:ENGINE

1999 MERCEDES BENZ ML320 - HARMONIC BALANCER FAILURE RESULTING IN LOSS OF POWER STEERING, OVERHEATING, DAMAGE TO FAN, AND OIL PAN.

NHTSA complaint #10041477 — an unverified report by a vehicle owner.

at 61,000 miles Oklahoma City, OK

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

1999 M-B ML320 - HARMONIC BALANCER FAILED, RENDERING POWER STEERING AND ALL OTHER SERPENTINE BELT DRIVEN ACCESSORIES INOPERATIVE WHILE IN MOTION. DAMAGED ENGINE FRONT COVER, TIMING COVER, OIL PAN AND ASSOCIATED PARTS.

NHTSA complaint #10037287 — an unverified report by a vehicle owner.

at 94,000 miles Austell, GA

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

CONSUMER COMPLAINED ABOUT HAVING PROBLEMS WITH THE PULLEYS MAKING A HOLE IN THE OIL PAN. MANUFACTURER WAS NOT NOTIFIED AT THE TIME OF THIS CALL.*AK THE VEHICLE HAD AN OIL LEAK. THE TECHNICIAN STATED THE LEAK WAS CAUSED BY A PULLEY WHICH WAS HITTING AGAINST THE OIL PAN. THE TECHNICIAN STATED THAT IF THE OIL PAN WAS REPLACED THE PULLEY WILL STILL HIT THE OIL PAN AND CAUSE A LEAK. THE CHECK ENGINE LIGHT ILLUMINATED. THE DEALER REPLACED THE MASS AIR FLOW SENSOR. *PH *NLM

NHTSA complaint #10029434 — an unverified report by a vehicle owner.

at 94,000 miles Austell, GA

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

CONSUMER COMPLAINED ABOUT HAVING PROBLEMS WITH THE PULLEYS MAKING A HOLE IN THE OIL PAN. MANUFACTURER WAS NOT NOTIFIED AT THE TIME OF THIS CALL.*AK THE VEHICLE HAD AN OIL LEAK. THE TECHNICIAN STATED THE LEAK WAS CAUSED BY A PULLEY WHICH WAS HITTING AGAINST THE OIL PAN. THE TECHNICIAN STATED THAT IF THE OIL PAN WAS REPLACED THE PULLEY WILL STILL HIT THE OIL PAN AND CAUSE A LEAK. THE CHECK ENGINE LIGHT ILLUMINATED. THE DEALER REPLACED THE MASS AIR FLOW SENSOR. *PH *NLM

NHTSA complaint #10029434 — an unverified report by a vehicle owner.

at 68,500 miles Madison, AL

ENGINE AND ENGINE COOLING:ENGINE

HARMONIC BALANCER SEAL CAME LOOSE AND CAUSED EXTENSIVE ENGINE DAMAGE. THIS HAPPENED WHILE DRIVING ON A CONGESTED HIGHWAY AT ~60 MPH! THE LOCAL MERCEDES DEALER(REGAL NISSAN/MERCEDES, HUNTSVILLE, AL, PH #256726-0077) CLAIMED THIS WAS A UNIQUE FAILURE AS FARAS THEY WERE CONCERNED. THE FIX INCLUDING REPLACEMENT OF THE OIL PAN WAS ~$900. UPON SUBSEQUENT RESEARCH I'VE DISCOVERED THAT THIS IS AN EXTREMELY COMMON PROBLEM.

NHTSA complaint #10026065 — an unverified report by a vehicle owner.

Escondido, CA

ENGINE AND ENGINE COOLING

WHILE DRIVING THE VEHICLE AT 55MPH ON AVERAGE, ENGINE MISFIRED. CONSUMER STATED HAS TO PULL OF THE ROAD, AND RESTARTED THE ENGINE, BUT AS SOON AS REACHING HIGH SPEED, WILL BE THE SAME PROBLEM. DEALER HAS NOT YET NOTIFIED. VEHICLE IS WITHOUT WARRANTY.

NHTSA complaint #10024567 — an unverified report by a vehicle owner.

Naperville, IL

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

THE FAILURE OF THE CENTER PULLEY RESULTED IN THE ENGINE BELT COMING LOOSE. IT RESULTED IN ALL POWER MECHANISMS (POWER STEERING, POWER BRAKES FAILING). THE STEERING WAS VERY HARD TO TURN. THE BELT GOT RIPPED BY THE FAN WHILE IT WAS WORKING. THE FAN ALSO STOPPED WORKING AND ELEVATED THE ENGINE TEMPERATURE. NO VISIBLE INDICATION OF THIS ON THE DASH PANEL. WHEN I OPENED THE HOOD, THE METAL PULLEY WAS SITTING LOOSE AGAINST THE ENGINE BLOCK. IF THE PULLEY HAD FALLEN DOWN OR HIT THE FUEL LINE, IT COULD HAVE CAUSED A SERIOUS ACCIDENT. MERCEDES DEALERSHIP TOLD ME THEY HAVE SEEN THIS PROBLEM BEFORE AND IT HAPPENS IN HOT WEATHER. MERCEDES HAS FIXED THIS PROBLEM IN LATER MODELS BUT NOT LETTING OWNERS OF PREVIOUS MODELS KNOW ABOUT THIS POTENTIALLY SERIOUS PROBLEM. PH *JB **DIMSII IVOQ ENTRY POSTED AFTER 12/12/02 CUT OVER TO ARTEMIS**768016

NHTSA complaint #10007435 — an unverified report by a vehicle owner.

at 36,000 miles Highland Village, TX

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

1999 MERCEDES-BENZ ML320 SUV. ON THURSDAY, DECEMBER 19, MY WIFE WAS DRIVING THE VEHICLE WHEN SUDDENLY THE "HARMONIC BALANCER" FAILED (BECAME DETACHED), CAUSING A COMPLETE LOSS OF POWER TO THE VEHICLE, RESULTING IN A DISABLED VEHICLE AND LEAVING MY WIFE AND FAMILY STRANDED. THE "HARMONIC BALANCER" IS THE MAIN PULLEY WHEEL WHICH IS ATTACHED TO THE CRANKSHAFT. THIS PULLEY WHEEL IN TURN DRIVES ALL OTHER BELT-DRIVEN ITEMS, SUCH AS POWER STEERING PUMP, AC, ALTERNATOR, WATER PUMP, ETC. FIRST, THIS ITEM SHOULD BE SO RESILIENT THAT FAILURE IS NEARLY IMPOSSIBLE, AND SECOND, BOTH THE TOW TRUCK DRIVER AND THE DEALER WHO IS REPAIRING IT STATED THAT THIS TYPE OF FAILURE IS "NOT AT ALL SURPRISING OR UNCOMMON" ON THE MB ML320 SUV. WHILE NO INJURIES OR DEATHS OCCURRED IN THIS CASE, IT SEEMS THAT IF THIS CRITICAL COMPONENT WERE TO FAIL AT HIGHWAY SPEEDS, THE RESULTING LOSS OF POWER COULD CAUSE A LOSS OF CONTROL OF THE CAR. I WILL ALSO ADD THAT WE HAVE VERY CAREFULLY FOLLOWED ALL OF THE ROUTINE MAINTENANCE RECOMMENDED BY THE MANUFACTURER. IF THIS CRITICAL COMPONENT IS SUBJECT TO FAILURE, A CHECK SHOULD BE PART OF THE SCHEDULED MAINTENANCE. BUT TO BE DIRECT, THE DESIGN OF THE "HARMONIC BALANCER" IS FAULTY, AND CLEARLY SHOULD BE RECALLED. THE REPAIRS ARE EXPENSIVE (UPWARDS OF $1500) AND THE RESULTS ARE POTENTIALLY DEADLY. LET'S NOT WAIT FOR AN INJURY OR DEATH TO RESULT BEFORE SOME ACTION IS TAKEN ON THIS! TS

NHTSA complaint #10000322 — an unverified report by a vehicle owner.

Charlotte, NC

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

VEHICLE STALLED DUE TO A BAD OXYGEN SENSOR AND A BAD MASS AIR FLOW SENSOR.

NHTSA complaint #562345 — an unverified report by a vehicle owner.

Other 1999 Mercedes Benz ML320 problems

← Full 1999 Mercedes Benz ML320 report