1998 Mercedes Benz ML320

Routine

Owners filed 133 complaints about this vehicle with federal regulators, most often about the engine. No safety recall has been issued.

Not among the Mercedes Benz ML320 years to avoid. Which Mercedes Benz ML320 years to avoid →

When it fails
020k40k60k90k120k200k
79,279 milesMedian miles at failure

43 complaints record an odometer reading. Failures cluster around 120,000–150,000 miles.

Most common 1998 Mercedes Benz ML320 problems

27 of the 133 complaints (20%) are about the engine.

ComponentReportsCrashesFiresInjuries
Engine and Engine Cooling › Engine · engine7
000
Visibility › Power Window Devices and Controls6
000
Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip · brakes5
207
Fuel System, Gasoline › Delivery › Fuel Pump · fuel system5
100
Engine and Engine Cooling › Exhaust System › Emission Control › Catalytic Convertor · engine5
000
Engine and Engine Cooling › Engine › Gasoline › Belts and Associated Pulleys · engine5
000
Electrical System5
000
Vehicle Speed Control · throttle and acceleration4
200
Unknown or Other3
000
Steering › Column Locking › Anti-theft Device3
000

What owners reported

Newest filings
Vehicle Speed ControlCrash
Filed Jan 19, 2018MD

1998 MERCEDES BENZ ML-320. CONSUMER WRITES IN REGARDS TO VEHICLE SUDDEN ACCELERATION. *SMD THE CONSUMER STATED WHILE MAKING A TURN AND RELEASING THE BRAKE PEDAL, THE VEHICLE ACCELERATED AND HIT A CONCRETE COLUMN. THIS DAMAGED THE MAIN METAL FRAME BEHIND THE FRONT BUMPER. THE AIRBAGS DID NOT DEPLOY. *JS

Wheels
Filed Mar 26, 201615,000 milesAL

MICHELIN LATTITUDE TOUR 255/65R16 TIRES ARE PREMATURELY COMING APART. I HAVE LESS THAN 15K MILES ON THESE TIRES AND THE TREAD IS RIPPING AWAY FROM THE SIDE WALLS. THERE IS NO RECALL FROM MICHELIN FOR THIS SIZE OF TIRE AND IT HAS THE SAME DEFECT AS THE OTHER SIZES IN THE SAME MAKE AND MODEL TIRE. THIS IS RIDICULOUS! 164 DOLLARS A TIRE AND I COULD HAVE DIED DRIVING ON THESE THINGS. THESE NEED A RECALL NOW! PEOPLES LIVES ARE AT RICK DRIVING WITH THESE TIRES!

Seat BeltsFire
Filed May 17, 2015170,549 milesTX

WENT TO START MY CAR SEAT BELT BLEW UP ,SMOKE COMING OUT NOW WILL NOT WORK WILL NOT RETRACT .HOW CAN MERCEDES MAKE SUCH A DANGEROUS PRODUCT AND NOT BE BE SUED FOR SUCH A CRAPPY DANGEROUS PRODUCT.THIS NOT A ISOLATED OR FREAK OCCURANCE HAVE READ NUMEROUS SIMILAR ON LINE.

Engine
Filed Dec 31, 2014131,459 milesOK

MY BATTERY WAS LOW AND UNKNOWN TO ME THE ML320 FOR THIS YEAR LOSES ITS TRANSPONDER CODES IN THE DAS SECURITY MODULE WHEN YOU TRY TO START THE VEHICLE WITH A LOW BATTERY. THIS IS EVIDENTALLY THE THIRD KEY THAT HAS LOST ITS PROGRAMMING ON MY VEHICLE DUE TO LOW BATTERY VOLTAGE. COST SO FAR IS 499 FOR A KEY, WEEKS WAITING FOR THE KEY FROM GERMANY, AND 300 TO PROGRAM IT ONCE THEY RECIEVE THE KEY. ITS A DEALERSHIP ONLY ITEM SO ITS VERY VERY COSTLY. THIS IS A KNOWN PROBLEM WITH MERCADES AND CHECKING THE FORUMS IT SEEMS THAT EVERYONE THAT HAS 1998-2000 MODEL MERCADES ALL LOSE THEIR TRANSPONDER CODES BETWEEN 129,000 AND 132,000 MILES NO MATTER WHAT.THIS IS AN OBVIOUS MANUFACTURERS DEFECT AND A KNOWN ISSUE THAT SHOULD BE PAID FOR BY MERCADES. I NEVER HAD THESE ISSUES WITH MY TWO 2002 ML500'S BUT I WILL NEVER PURCHASE ANOTHER BENZ IN MY LIFE. *JS

Vehicle Speed Control
Filed Jul 28, 201498,000 milesPA

SUDDENLY I COULD NOT GAIN OR GET ANY MORE SPEED. I WAS JUST COASTING ALONG, I THEN ARRIVED AT MY DESTINATION AND GOT OUT AND SMELLED BURNING SMELL FROM FRONT WHEELS. I COULD NOT GET OUT OF THE GEAR I WAS IN. *JS

Service Brakes
Filed Jul 23, 201498,275 milesFL

MESSAGE DISPLAY INDICATES LEFT BRAKE LIGHT NOT WORKING. REPLACED BULB AND MESSAGE DISAPPEARED FOR ONE DAY AND THEN REAPPEARED. REMOVED BULB AND BULB WAS OK. WENT ONLINE AND FOUND WHERE MERCEDES HAD A BRAKE LIGHT REPAIR KIT FOR THIS PROBLEM BUT I WAS NOT NOTIFIED. I CALLED THE DEALER AND THIS REPAIR KIT IS NOT UNDER WARRANTY OR RECALL. I CONTACTED A LOCAL EUROPEAN CAR REPAIR SHOP WHO HAD THE REPAIR KIT IN STOCK GOING BACK TO 2010 MERCEDES HAS KNOWN ABOUT THIS PROBLEM BUT NEVER NOTIFIED ME OR FIXED THE PROBLEM WHEN I BROUGHT MY CAR IN FOR NORMAL SERVICE. VERY DISAPPOINTED IN MERCEDES. *TR

Structure › Body
Filed Nov 5, 2012157,000 milesAL

TL* THE CONTACT OWNS A 1998 MERCEDES BENZ ML320. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS THE DOOR LOCKS ON ALL FOUR DOORS INDEPENDENTLY LOCK AND UNLOCK CONTINUOUSLY. THE DRIVER SIDE DOOR WOULD NOT UNLOCK FROM THE OUTSIDE AND THE CONTACT HAD TO ENTER FROM THE PASSENGER SIDE DOOR. THE FAILURE RECURRED NUMEROUS TIMES. THE DEALER WAS NOTIFIED AND STATED THAT WHILE THERE WERE A LOT OF COMPLAINTS THERE WAS NO RECALLS AT THAT TIME. THE VEHICLE HAD NOT BEEN REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 157,000.

Service BrakesFire
Filed Sep 9, 201250,567 milesWA

THE BRAKING SYSTEM FAILED AND WORKED AGAIN AFTER SOME PUMPING AND COASTING TO AVOID COLLISION. THE CAR THEN CAUGHT ON FIRE. *TR

Engine and Engine Cooling › Cooling System › Radiator Assembly
Filed May 14, 2012180,000 milesGA

TL* THE CONTACT OWNS A 1998 MERCEDES BENZ ML320. THE CONTACT STATED THAT THE VEHICLE WAS BEING REPAIRED BY AN INDEPENDENT MECHANIC FOR UNRELATED ISSUES WHEN SHE WAS INFORMED THAT THE IGNITION KEY NEEDED TO BE REPLACED BECAUSE IT NO LONGER FUNCTIONED PROPERLY. THE CONTACT WAS NOT INFORMED AS TO WHY THE FAILURE OCCURRED. THE KEY WAS NOT REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND THE CONTACT WAS INFORMED THAT IN ORDER TO REMEDY THE FAILURE, THE VEHICLE WOULD NEED AN ENTIRE NEW IGNITION SYSTEM. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 180,000. THE CONSUMER DISCOVERED DURING RESEARCH THAT MERCEDS BENZ INSTALLED AN INADEQUATE COMPUTER SYSTEM IN HER VEHICLE. THE SYSTEM WOULD ONLY ALLOW EIGHT KEYS TO BE MADE FOR THE LIFETIME OF THE VEHICLE. THE CONSUMER FELT IT WAS A SCAM BY MB TO FORCE THEIR CUSTOMERS TO PURCHASE A NEW COMPUTER, IGNITION, ETC, FOR THE VEHICLE AFTER THE 8TH KEY HAD BEEN MADE. THEY CLAIMED IT WAS MADE THAT WAY FOR SECURITY REASON. THE CONSUMER CALLED TWO DEALERSHIPS AND WAS GIVEN A PRICE OF $4,000 TO $5,000. THE CONSUMER FINALLY HAD THE KEY, COMPUTER AND OTHER PARTS REPLACED BY A LOCKSMITH FOR $1,400. THE RADIATOR, AIR CONDITION AND TWO MIRROR ALSO HAD TO BE REPLACED. UPDATED 07/11/12

Electrical System
Filed Mar 17, 201171,000 milesUT

CAR FAILS TO START. WE HAD THIS CAR TOWED TO A DEALER 40 MILES AWAY FROM OUR DAUGHTER'S SCHOOL IN MI. NEEDS NEW KEY SYSTEM AS CHIP NOT RECOGNIZED AND IGNITION SYSTEM NEEDS TO BE RE-KEYED. 8 KEYS HAVE BEEN ISSUED TO THIS CAR,(WE BOUGHT IT USED). WE ONLY RECEIVED 1 WITH OUR PURCHASE! EVERYTHING THAT NEEDS A KEY HAS TO BE CHANGED. COST ESTIMATED AT $4000. WE SEE THIS AS A MAJOR DESIGN FLAW, NOT A SECURITY BENEFIT. ESPECIALLLY SINCE THEIR KEYS JUST QUIT WORKING. *TR

Exterior Lighting
Filed Nov 9, 2008150,843 milesOR

HEADLAMPS TURN OFF WHILE DRIVING. IT OCCURS ON A NIGHTLY BASIS. OTHER CARS CANNOT SEE ME. ALMOST HIT SOMEONE CROSSING THE STREET BEFORE I NOTICED THE LIGHTS WERE OFF. SOMETIMES CYCLING THE LIGHTS ON AN OFF TEMPORARILY FIXES THE PROBLEM. OTHER TIMES I DRIVE WITH MY FOGLAMPS ON. I'VE CHECKED THE FUSE AND WILL BE TAKING THE CAR INTO THE DEALER NEXT WEEK. PREVIOUSLY, IN 2006 THE HEADLAMPS WOULDN'T TURN OFF. THE DEALER FIXED THIS PROBLEM. *TR

Electrical System
Filed Jul 29, 2008125,000 milesMO

ON MY MERCEDES ML320, 1998 THE KEY REFUSE TO START THE ENGINE. I WAS TOLD AT PLAZA MOTORS IN ST,. LOUIS MO. THAT THE CAR DID NOT RECOGNIZE THE KEY ANY MORE. UPON MY RESEARCH I FOUND THAT IT IS COMMON PROBLEM WITH THE ML320 SERIES WHICH IS AN ENGINEERING PROBLEM ON THE PART OF THE MANUFACTURER ESPECIALLY THE EARLIER ONCE 1998-2000 AND IT WILL CAUSE $6700.00 TO FIX. I WILL APPRECIATE AN INVESTIGATION, IT'S SO COMMON THAT A LOT OF PEOPLE ARE SELLING THEIR CARS BECAUSE OF THIS. *TR

Fuel System, Gasoline
Filed May 7, 200820,162 milesCA

REPLACEMENT OF 10 FULL SENDER AND FUEL GAUGE RELATED EQUIPMENT PARTS ON 1998 MB ML320, REPLACEMENT OF TRANSFER CASE. *TR

Power Train › Driveline
Filed May 7, 200859,945 milesCA

FAILURE OF TRANSFER CASE FIRST DETECTED. *TR

Seat BeltsFire1 injured
Filed Apr 29, 2008142,900 milesMN

FAILURE OF FRONT DRIVER'S SEATBELT ASSEMBLY; A GUNSHOT TYPE NOISE AND SMOKE OCCURRED COMING OUT OF THE SEATBELT RETRACTOR AREA; SEATBELT RETRACTOR BROKE CAUSING THE SEATBELT TO KEEP RETRACTING TIGHTENING ON PERSON AND THE RELEASE ON THE SEATBELT WOULD NOT RELEASE CAUSING INJURY; THE EVENT OCCURRED WITHIN ONE MINUTE OF TURNING ON CAR IN PARKED POSITION AND AS SOON AS SEATBELT WAS PUT IN THE BUCKLE. *TR

Air Bags › Frontal › Sensor/Control Module1 injured
Filed Sep 20, 200797,433 milesNV

I PUT MY SEAT BELT (S/B) ON AND STARTED THE IGNITION. A LOUD BANG, I WAS JERKED BACK INTO MY SEAT BY THE S/B AND WAS TRAPPED. WHITE SMOKE ESCAPED WHERE THE S/B COMES OUT OF THE FRAME. THE SRS LIGHT WAS ILLUMINATED. I TURNED THE CAR OFF, UNBUCKLED THE S/B, WHICH DIDN'T RETRACT BACK INTO THE FEED, GOT OUT OF THE CAR AND WAITED FOR THE SMOKE TO DISSIPATE. I GOT BACK INTO THE CAR, PUT MY S/B ON, WHICH WAS STUCK AND WOULD NOT ADJUST. I CALLED MB DEALERSHIP TO REPORT INCID AND MAKE APT FOR CAR TO BE CHKD. 8-30-07 I BROUGHT CAR INTO MB OF RENO, NV. MB SAID NEED TO ORDER PARTS, BRING BACK ONCE PARTS IN. THE OTHER SERVICE ADVISOR SAID THAT THE SAME THING HAPPENED TO ANOTHER CUST RECENTLY, BUT NEVER HEARD OF ANOTHER OCCURRENCE. I ASKED MY SERVICE ADVISOR, JOSEPH CASTLEBERRY, TO INVEST PROBLEM, LET ME KNOW. HE WOULD GET BACK TO ME. I PICKED UP THE CAR AFTER REPAIRS, JOE DIDN'T KNOW WHY MALFUNCTION OCCURRED, BUT COST WAS $1079.82. I TOLD HIM THIS IS A SAFETY ISSUE AND I WANTED THIS INVESTIGATED. HE SAID IT WAS A FLUKE INCIDENT, AND I STRESSED, I WANTED ANSWERS. MB OF RENO INV COPY READS AS ?INSPECT FOR COMPLAINT, FOUND THE DRIVERS ETR HAS GONE OFF WITHOUT CAUSE. PREPARE AND PERFORM DTC QUICK TEST, FOUND ONLY CODE FOR DRIVERS ETR, CHECK MB HIST OF COMPLAINT, AS PER HIST REC THEY REPLACED BOTH THE SRS CONTROL MODULES AND THE ETR, RECOMMEND THAT BOTH THE SRS CONTROL UNIT AND THE ETR BE REPLACED AS PER TAC HISTORY OF COMPLAINT, R&R LEFT SIDE B PILLAR PANELING, REPLACED DRIVERS S/B, R&R SENSO

Engine and Engine Cooling › Engine
Filed Jul 18, 2007148,000 milesPA

HARMONIC BALANCER BROKE APART AT 140K , NO INDICATION OF FAILURE, JUST LOTS OF SMOKE AND NO STEERING CAPABILITIES, WAS IN THE MIDDLE OF THE INTERSECTION. POLICE PUSHED ME TO SAFETY. PLASTIC SHATTERED EVERYWHERE IN ENGINE COMPARTMENT.. THE DEFECT WAS THE PLASTIC PULLY, INTERNET RESEARCH SHOWED OTHER PEOPLE HAD SAME PROBLEM AND COST THEM THOUSANDS. *TR

Engine and Engine Cooling › Exhaust System › Emission Control › Catalytic Convertor
Filed Jan 5, 2007PA

1998, MERCEDES ML320, 70,000 MILES, BOTH CATALYTIC CONVERTERS NEED TO BE REPLACED. THERE IS A MAJOR CAMPAIGN FOR RECALL ON THIS PART FOR MERCEDES TO REPLACE AT NO COST TO THE OWNER, HOWEVER, THE YEAR OF THE CAR IS IN QUESTION. THIS INCIDENT HAPPENED 4 MONTHS AFTER THE 8 YEAR WARRANTY RAN OUT.

Electrical System › Instrument Cluster/Panel
Filed May 6, 2006TX

INSTRUMENT LIGHTS DO NOT LIGHT UP. INSTRUMENTS CANNOT BE SEEN AT NIGHT INCLUDING SPEEDOMETER AND GAS GAGE. POTENTIAL CONSEQUENCES ARE RUNNING OUT OF FUEL OR EXCEEDING THE SAFE SPEED LIMITS BECAUSE SPEEDOMETER IS NOT VISIBLE. THE PROBLEM HAS GOTTEN WORST WITH TIME. THIS HAS BEEN A PROBLEM SINCE THE CAR WAS NEW AND DEALERS BLAME THE PROBLEM ON LIGHT BULB PROBLEMS. SOMETIME RAPPING THE INSTRUMENT CLUSTER CAUSE THE LIGHTS TO COME BACK ON INDICATING THAT THIS IS A PROBLEM WITH THE CONNECTION AND NOT THE BULBS. THIS APPEARS TO BE A DEFECT WITH THE BULB CONNECTIONS AS THE PROBLEM IS RECURRING AND THE DEALERS ARE NOT TRULY FIXING THE SOURCE OF THE PROBLEM. *JB

Steering › Linkages
Filed Feb 22, 2006139,000 milesNC

THE VEHICLE EXHIBITS A CLUNK IN THE FRONT SUSPENSION AND THE STEERING SEEMS TO BE LOOSE. I THINK IT IS DEFECTIVE STEERING GEAR. THE CAR WANDERS OVER THE ROAD AND SOMETIMES STARTS PULLING ITSELF INTO ONE LANE AND THEN TRIES TO GO TO THE OTHER LANE ALMOST CAUSING ME ON ONE OCCASION TO RUN OVER A KIA RIO. MERCEDES SHOULD HAVE TO REPAIR DEFECTIVE STEERING GEAR FOR FREE. *NM

Engine and Engine Cooling › Exhaust System › Emission Control › Catalytic Convertor
Filed Feb 22, 2006139,000 milesNC

WHILE DRIVING IN TRAFFIC, THE VEHICLE SEEMS TO BE LEAKING EXHAUST DIRECTLY INTO THE PASSENGER COMPARTMENT CAUSING ME TO HAVE SEVERE HEADACHES AND FEEL VERY TIRED. IT HELPS SOMEWHAT WITH THE ODOR WHEN THE HVAC IS SWITCHED TO RECIRCULATE, BUT I FEEL THAT CO IS STILL SEEPING IN THE VEHICLE. *NM

Electrical System › Ignition › Anti-theft › Control Module
Filed Jan 6, 200680,000 milesUT

CAR FAILED TO START AS KEY SECURITY CHIP NOT RECONIZED. NEEDS NEW KEY. TOWED TO DEALER WHO SAID 8 KEYS HAVE ALREADY BEEN ISSUED TO THIS CAR, MUST REPLACE ALL LOCKS, ENGINE MODULES, ETC COST $3600.00. CONSIDER THIS MAJOR DESIGN FLAW. *JB

Engine and Engine Cooling › Exhaust System › Emission Control › Catalytic Convertor
Filed Dec 30, 2005TX

CATALYTIC CONVERTER NEEDS REPLACING. ENGINE IS SOUNDING VERY LOUD. THE CHECK ENGINE LIGHT IS ON. PART WAS ORDERED IN SEPTEMBER 2005. AS OF TODAY, 12/30/05, THE PART IS STILL NOT AVAILABLE. THE MERCEDES ACCOUNT MANAGER SAID OVER 1200 CATALYTIC CONVERTERS ARE ON BACK ORDER FOR THE US AND THERE ARE 2 PEOPLE WHO HAVE BEEN WAITING LONGER THAN US IN AUSTIN FOR THE PART. HE SAID IT MAY BECOME A RECALL. WHY ARE SO MANY OF THESE PARTS ALL FAILING AT THE SAME TIME THAT SUPPLY CANNOT KEEP UP WITH DEMAND? I FEEL MY VEHICLE MAY BE UNSAFE TO DRIVE AND HAVE NO ACCESS TO A PART TO CORRECT THE DEFECT. *NM

Electrical System › Wiring
Filed Nov 2, 2005145,000 milesDE

OUR 1998 MERCEDES M320 HAS BEEN SUBJECT TO UNEXPECTED STALLING FOR SOME TIME. MORE RECENTLY THIS HAS INCREASED IN FREQUENCY AND WE HAVE PERIODS OF LOSS (REDUCTION) OF POWER WHILE DRIVING. THE DEALER ADVISES THAT WE HAVE DETERIORATION OF THE CATALYTIC CONVERTERS AND THAT THERE HAS BEEN A RECALL FOR THIS PROBLEM ON NEWER MODELS OF THE M CLASS - BUT NOT OUR YEAR. WE HAVE THE CAR AT THE DEALER WAITING FOR REPLACEMENT PARTS. WE ARE TOLD IT WILL BE A NUMBER OF WEEKS SINCE THE PARTS ARE IN GREAT DEMAND. REPAIRS WILL COST OVER $2,000 - BUT THE CAR IS CLEARLY UNSAFE. MOST FREQUENT STALLS ARE STARTING AT A LIGHT OR STOP SIGN. ONE CONCERN IS KNOWING THIS PROBLEM WITH MODEL YEARS JUST NEWER THAN OURS ARE SUBJECT TO RECALL WHILE OUR YEAR ISN'T. THE OTHER ISSUE IS HOW DIFFICULT IT WAS FOR THE DEALER TO IDENTIFY THE PROBLEM UNTIL IT BECAME VERY SEVERE (OR THEY LEARNED OF THE SOLUTION DUE TO THE RECALL OF OTHER YEARS. *JB

Engine and Engine Cooling › Exhaust System › Emission Control › Catalytic Convertor
Filed Sep 29, 2005NJ

THE RIGHT SIDE CATALYTIC CONVERTER SPLIT AT THE NECK. WHILE THE LOCAL MERCEDES BENZ DEALER FREELY ADMITS THAT THIS IS A COMMON PROBLEM ON THIS CLASS OF CAR AND THAT THERE IS A RECALL ON THIS VERY PROBLEM, THEY TELL ME THAT MY VIN NUMBER IS NOT COVERED AND IF I WANT TO AVOID THE PROBLEMS ASSOCIATED WITH A LEAKING EXHAUST SYSTEM, I MUST REPLACE IT MYSELF. THIS IS OBVIOUSLY A MUCH WIDER PROBLEM THAN MERCEDES BENZ IS WILLING TO ADMIT TO. *JB

Engine and Engine Cooling › Engine
Filed Aug 9, 200585,000 milesNC

HARMONIC BALANCE PULLEY WAS FAILED AND WAS RECALLED 1998 MERCEDES ML320 -[XXX]. MERCEDES REFUSED TO PAY TOTAL LABOR FOR PROCESS. VEHICLE HAS NO EQUIPMENT OTHER THAN MERCEDES MADE AND INSTALLED EQUIPMENT. VEHICLE HAS MERCEDES FOG LIGHT BAR ON FRONT (STANDARD MERCEDES MADE AND INSTALLED ITEMS). IF THE PART HAD NOT BEEN DEFECTIVE, THIS CHARGE WOULD NOT HAVE OCCURRED. REGARDLESS OF THE FACT THAT IS WAS INSTALLED BY MERCEDES BEFORE I GOT THE CAR--I DO NOT FEEL THAT I SHOULD BE BURGEONED WITH MERCEDES COSTS DUE TO POOR QUALITY OF DEFECTIVE PARTS. *NM UPDATED 07/19/2012 *JS INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Service Brakes, Hydraulic › Foundation Components › Hoses, Lines/Piping, and Fittings
Filed Mar 29, 200559,120 milesOH

WHILE APPLYING BRAKES AT 25 MPH THE BRAKE PEDAL WENT TO THE FLOOR AND THE VEHICLE CONTINUED ON THROUGH AN INTERSECTION CONTROLLED BY A STOP SIGN. CONSUMER WAS ABLE TO COAST THE VEHICLE THROUGH THE INTERSECTION WITHOUT AN ACCIDENT AND BRING THE VEHICLE TO A STOP. VEHICLE WAS TOWED TO A REPAIR SHOP AND TO A DEALER, WHO INFORMED CONSUMER THAT THE BRAKE LINE LEADING TO THE REAR NEEDED TO BE REPLACED DUE TO CORROSION.*AK

Vehicle Speed Control › Accelerator Pedal
Filed Nov 18, 2004140,000 milesCA

WHILE DRIVING AT HIGHWAY SPEED THROTTLE STICKS. AS A RESULT, CONSUMER HAD DIFFICULTY SLOWING DOWN. *AK

Engine and Engine Cooling
Filed Nov 15, 2004MA

VEHICLE STALLED WHENEVER IT WAS DRIVEN. THERE WERE NO CURRENT RECALLS FOR THIS VEHICLE.*AK

Power Train › Transfer Case (4-wheel Drive)
Filed Oct 28, 2004CA

WHILE APPLYING THE ACCELERATOR PEDAL HEARD A LOUD POPPING NOISE COMING FROM THE FRONT. VEHICLE VIBRATED UNCONTROLLABLY. HOWEVER, CONSUMER WAS ABLE TO MAINTAIN CONTROL OF THE VEHICLE, AND DROVE IT TO THE DEALER FOR INSPECTION. MECHANIC DETERMINED THAT THE TRANSFER CASE NEEDED TO BE REPLACED. *AK

Seat Belts › Front
Filed Aug 24, 2004FL

VEHICLE WAS AT A GAS STATION AND DRIVER GOT INSIDE OF THE VEHICLE AND DRIVER 'S SIDE SEAT BELT EXPLODED. THE SEAT BELT WAS STUCK IN A UPRIGHT POSITION AND WOULD NOT MOVE. ALSO, SRS LIGHT APPEARED ON THE DASHBOARD AND REMAINED ON. CONSUMER WAS ABLE TO DRIVE THE VEHICLE HOME. THEN, CONSUMER CALLED THE DEALER FOR AN APPOINTMENT. *AK

Electrical System › Wiring › Rear Compartment/Trunk1 injured
Filed May 2, 200497,615 milesMS

LAUNDRY LIST OF FAILURES. JACK HAS ALMOST KILLED ME WHILE CHANGING TIRE. VEHICLE FELL, ALMOST HITTING ME BUT CATCHING SIDE OF VEHICLE BEFORE LANDING ON ME! HOOD LATCH HAS FAILED ON A FEW OCCASIONS, CAUSING HOOD TO OPEN WHILE VEHICLE WAS IN MOTION. AIR MASS METER FAILED. HAS REQUIRED 5 (FIVE!) ALIGNMENTS IN TWO YEARS. WHEN BROUGHT TO DEALER'S ATTENTION, WAS TOLD NOTHING WAS WRONG. A MONTH LATER REQUIRES ANOTHER ALIGNMENT. ALIGNMENT PROBLEMS CAUSES WEAR ON TIRES, WHICH HAS CAUSED HYDROPLANING AND LOSS OF CONTROL OF VEHICLE. VEHICLE SWERVES UNCONTROLLABLY WHEN HITS ANYTHING OTHER THAN FLAT ROAD. TRANSFER CASE MOTOR FIXED BY DEALER WITHOUT CONSULTING. AFTER REPAIR, TRANSFER CASE MOTOR FAILED. DEALER STATES OWNER RESPONSIBLE FOR COSTS. HAS HAD REPAIR OF HARMONIC BALANCER ON FRONT OF ENGINE DUE TO EXCESSIVE HEAT BUILDUP LEADING TO OIL LEAK AND FAILURE OF BELT TENSIONER. WINDOW SWITCHES HAVE FAILED TWICE AND FIXED AT EXPENSE OF OWNER. SIX DIFFERENT KEYS HAVE FAILED @ THE COST OF $220/KEY. REAR WINDOW DEFROSTER CAUSES LOSS OF STEREO RECEPTION. REAR WINDOW WIPER MOTOR HAS FAILED. FRONT END MAKES NOISE.*AK

Engine and Engine Cooling › Engine › Gasoline › Belts and Associated Pulleys
Filed Apr 10, 200479,457 milesTX

STEERING FAILURE DUE TO DEFECTIVE HARMONIC BALANCER. REFER TO NHTSA ACTION NUMBER: PE03058

Engine and Engine Cooling › Engine › Gasoline › Belts and Associated Pulleys
Filed Jan 17, 200480,772 milesAL

BELT TENSIONER FAILED AT 73886 MILE,$308.00. HARMONIC BALANCER FAILED @80,772 MILES. LOST POWER STEERING AND ALL ACCESSORIES. REPLACED BELT ,OIL PAN ,TENSIONER(AGAIN),HARMONIC BALANCER,OIL ,OIL SEAL. MERCEDES PAID FOR PARTS. I PAID FOR LABOR $675.00. DID TENSIONER FAIL FIRST TIME BECAUSE OF BALANCER. WAS BALANCER A KNOWN DEFECT? *CB

Equipment
Filed Jan 10, 200455,000 milesPA

TRANSFER CASE FAILURE. FRONT DRIVE AND PASSENGER SIDE WHEELS MAKES NOISE WHEN MAKING A TURN FROM STOP POSITION OR SLOW SPEED. DID SOME RESEARCH AND IT TURNS OUT THAT THIS IS A REGULAR OCCURANCY FOR THE 1998-1999 ML320. *AK

Fuel System, Gasoline › Delivery › Fuel Pump
Filed Jan 6, 200470,000 milesLA

FUEL PUMP FAILURE AFTER 70,000 MILES. LEFT STRANDED ON THE ROAD. HAD TO CALL FOR A TOW TRUCK. HAMMOND TIRE AND AUTO CENTER IN HAMMOND,LA CONTACTED BENSON MERCEDES IN METAIRIE AND WAS TOLD SEVERAL OF THESE HAD APPEARED IN RECENT MONTHS IN HIS SHOP. BENSON MERCEDES SENT OUT THE NEW FUEL PUMP WITH SEVERAL MODIFICATIONS MADE TO BRING THE VEHICLE UP TO "COMPLIANCE". I CONTACTED MERCEDES AND WAS TOLD THERE WAS NO RECALL AND THERE WOULD BE NO REIMBURSEMENT FOR HALF THE COST OF THE PARTS SINCE I DID NOT HAVE THE WORK DONE AT A CERTIFIED MERCEDES DEALERSHIP. I EXPLAINED TO THEM THAT IT WOULD HAVE COST ME APPROXIMATELY $200 TO HAVE IT TOWED TO METARIE OR BATON ROUGE.*AK

Engine and Engine Cooling › Engine › Gasoline › Belts and Associated Pulleys
Filed Jan 2, 200457,435 milesWI

REGARDING NHTSA ACTION NUMBER PE03058. THE CRANKSHAFT PULLEY HARMONIC BALANCER WAS FOUND TO BE DEFECTIVE ON MY MERCEDES ML, 320 TODAY. THE VEHICLE HAD 57,435 MILES. THE DEALER TOLD ME IT WAS STARTING TO FAIL AND RECOMMENDED IT BE REPLACED OR IT COULD LEAD TO A LOSS OF POWER STEERING AND MAJOR ENGINE DAMAGE.*AK

Engine and Engine Cooling
Filed Dec 29, 200373,500 milesLA

1998 MERCEDES-BENZ ML320, 73K MILES - CRANKSHAFT HARMONIC BALANCER DISINTEGRATED, RESULTING IN CONCURRENT LOSS OF MULTIRIBBED-V-BELT AND INSTANTANEOUS LOSS OF POWER STEERING, ALTERNATOR AND WATER PUMP FUNCTION.*AK

Visibility › Power Window Devices and Controls
Filed Dec 19, 200367,000 milesNJ

WHILE ROLLING UP THE DRIVER SIDE FRONT WINDOW IT SHATTERED. *AK

Fuel System, Gasoline › Delivery › Fuel PumpCrash
Filed Dec 11, 2003FL

ML320 FUEL PUMP FAILED, CAUSING CRASH INTO OTHER VEHICLE. MBZ ROADSIDE ASSISTANCE WAS CALLED TWICE AND CLAIMED NO RECORD OF 1ST CALL 4 HOURS EARLIER. VEHICLE WAS TOWED AT OWNER'S EXPENSE TO DEALER WHO CLAIMED STARMARK WARRANTY WAS EXPIRED, CONTRARY TO SAME DEALER REPRESENTATION AT SALE. *AK

Engine and Engine Cooling › Engine
Filed Oct 20, 200348,000 milesNJ

HARMONIC BALANCER FAILURE AT HIGHWAY SPEEDS. *LA

Engine and Engine Cooling › Engine
Filed Oct 20, 200325,000 milesHI

VEHICLE STALLED ON THE HIGHWAY WHILE DRIVING ABOUT 55 MPH. VEHICLE WAS TOWED TO THE DEALERSHIP FOR ANALYSIS. *AK

Engine and Engine Cooling › Cooling System
Filed Oct 14, 200347,000 milesMD

1998 MERCEDES BENZ ML320, 47K MILES, HARMONIC BALANCER LOOSENED, GROUND THROUGH TIMING COVER AND UPPER OIL PAN LEADING TO RAPID LOSS OF OIL. COULD HAVE BEEN A SAFETY ISSUE TO CARS BEHIND. *LA

Engine and Engine Cooling › Engine
Filed Oct 8, 200375,000 milesMD

98 MERCEDES ML320 WITH 75,000 MILES HARMONIC BALANCER WENT UP AND DESTROYED HALF OF THE ENGINE WHICH COST OVER $5,000 IN REPAIRS. MBUSA SAID THEY HAD NO PREVIOUS COMPLAINTS AND THAT I WAS RESPONSIBLE FOR ALL REPAIRS SINCE IT WAS OUT OF WARRANTY. I HAVE SINCE FOUND OUT THAT THIS IS A KNOWN PROBLEM FOR THESE VEHICLES/ENGINES THAT MB IS TRYING TO COVER UP. *LA

Fuel System, Gasoline › Storage › Tank Assembly
Filed Sep 30, 2003NY

1998 MERCEDES BENZ ML320: PERSISTENT SLOSHING SOUND COMING FROM UNDERBODY OF CAR. PRESUMED TO BE GAS SLOSHING AROUND IN THE TANK, OR SOME OTHER DRAINAGE PROBLEM. MB TOOK TWO SECONDS TO INVESTIGATE BY ROCKING THE CAR AND FOUND NOTHING.

Engine and Engine Cooling › Engine › Gasoline › Belts and Associated Pulleys
Filed Sep 26, 200362,717 milesVA

THE CRANK SHAFT DAMPER (HARMONIC BALANCER) CAME APART CAUSING DAMAGE TO THE MIDDLE OIL PAN AND THE FRONT TIMING COVER.

Fuel System, Gasoline › Delivery
Filed Sep 26, 200346,316 milesNV

FUEL LINE COMING OUT OF GAS TANK CAME LOOSE AND SPRAYED RAW FUEL ALL OVER BACK OF CAR AND ONTO STREET. COULD HAVE IGNITED FROM ANY SPARK OR OPEN FLAME.

Engine and Engine Cooling › Engine
Filed Sep 25, 2003MA

WHILE DRIVING 25-35 MPH THE VEHICLE STALLED WITHOUT WARNING. THE DEALER HAS REPLACED THE FUEL PUMP TWICE BUT THE PROBLEMS STILL EXIST. PLEASE PROVIDE FURTHER INFORMATION. *NLM

Engine and Engine Cooling › Cooling System
Filed Sep 19, 2003CA

THE VEHICLE COOLANT ENDED UP IN THE TRANSMISSION. PROBABLE PROBLEM WITH HOSES OR CONNECTION. *JB

Engine and Engine Cooling › Exhaust System › Emission Control › Crankcase (pcv)
Filed Sep 10, 200340,000 milesID

THE HARMONIC BALANCE THAT IS LOCATED IN THE CRANKSHAFT WENT OUT AND CAUSED THE LOSS OF POWER STEERING AND CONTROL. DEALER INFORMED THE CONSUMER THAT THE DAMPER PULLEY HAD SEPARATED.*AK

Complaints 1-50 of 133, newest first, reproduced as filed.

Across model years

Worst on record: 2000
YearComplaintsRecallsFiresDeathsAssessment
20111000Routine
20100100Routine
200928310Do not drive
200821200Do not drive
200716220Do not drive
20061000Routine
20055000Routine
200322040Routine
200288180Routine
2001136070Routine
2000166060Routine
1999125020Routine
1998 — this page133050Routine

Compare every ML320 year →

Reading this record

No unusual pattern of severe incidents in the complaint record.

Complaint counts track how many cars were sold and how long they have been on the road as much as they track quality. A common model from 2013 has had a decade to accumulate reports; a rare one from last year has not. The signal worth weighing is in the severity columns, in whether the same component keeps appearing, and in whether the manufacturer eventually opened a recall for it.

Most recent recall on file: none. Source: NHTSA Office of Defects Investigation.