2002 Mercedes Benz ML500

Routine

Owners filed 27 complaints about this vehicle with federal regulators, most often about the steering. It has been recalled 1 time.

Most common 2002 Mercedes Benz ML500 problems

7 of the 27 complaints (26%) are about the steering.

ComponentReportsCrashesFiresInjuries
Steering6
000
Vehicle Speed Control · throttle and acceleration3
000
Service Brakes, Hydraulic · brakes2
000
Engine and Engine Cooling · engine2
000
Visibility › Defroster/Defogger/Hvac System1
000
Visibility1
000
Steering › Hydraulic Power Assist › Hose, Piping, and Connections1
000
Service Brakes, Hydraulic › Foundation Components › Hoses, Lines/Piping, and Fittings · brakes1
000
Service Brakes, Hydraulic › Foundation Components › Disc › Pads · brakes1
000
Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Abs Warning Light · brakes1
000

1 safety recall

Part 573 reports
Suspension › Front › Control Arm › Upper Arm01V290000
Filed Sep 10, 2001870 vehiclesMercedes-Benz USA, LLC.

Defect. VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE LEFT FRONT UPPER CONTROL ARM MAY NOT MEET THE SPECIFIED STRENGTH REQUIREMENTS.

Risk. THE CONTROL ARM COULD FAIL, INCREASING THE RISK OF A CRASH.

Remedy. DEALERS WILL REPLACE THE LEFT FRONT UPPER CONTROL ARM. OWNER NOTIFICATION BEGAN SEPTEMBER 29, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MERCEDES-BENZ AT 1-800-367-6372.

All 1 campaign on file, newest first.

What owners reported

Newest filings
Air BagsCrash1 injured
Filed Dec 8, 2023CO

Motor vehicle accident head on and the airbags did not deploy.

Service Brakes
Filed Dec 10, 2021CO

There is a serious defect in the YAW rate sensors in these Mercedes ML W163's. Thank God I was driving down a secluded road and nobody was behind me, but my vehicles brakes locked up, on their own, even with my foot on the accelerator pedal, with no warning lights or warning signals. I have no error codes, and my vehicle is well maintained. There are many many people that are having the same issue with their Mercedes ML's. Some people have experienced this happening to them at freeway speeds. The YAW rate sensors are at fault, and send a signal to the ABS pump which in turn locks up the brakes without even touching the brake pedal! This is EXTREMELY DANGEROUS to everyone in the vehicle, and to ANY other vehicle in the area. People can DIE! Again.. This is a terrible defective function of a sensor that will spontaneously apply the brakes fully to lock up automatically with no persuasion from the driver. It is extremely dangerous and can cause fatal injuries. This has been researched thru many Mercedes forums including benzworld.org, mbworld.org, Mercedesforum.com, and ml w163 Facebook forum, all of which many ML owners have experienced the braking system lockup, and in some cases accidents have occurred. Another unfortunate issue in this happening, is that the brake lights do not light up when this sudden braking happens due to the YAW rate sensor malfunction. If there is a vehicle behind a Mercedes ML when this sudden braking occurs, there is NO WARNING LIGHTS, and can cause

Engine
Filed Aug 27, 2019201,000 milesCA

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.

Steering
Filed Apr 11, 201610,070 milesNY

HOUSE FROM POWER STEERING POMP IS LEAKING , DURING DRIVE I LOOSE POWER STEERING FLUID AND ALMOST I HIT CAT FROM ANOTHER LINE.

Electronic Stability Control (esc)
Filed Aug 11, 2014150,000 milesCA

THIS WAS THE 3RD TIME IT HAPPENED, THIS TIME ON THE FREEWAY IN CALIFORNIA AND LASTED UNTIL THE CAR CAME TO A STOP. THE CAR WENT INTO BREAK MODE ON ITS OWN, THE CAR FISHTAILED AND CAME TO A STOP BEFORE RECOVERING. LUCKILY THE CAR BEHIND ME WAS ABLE TO STOP, I HEARD BREAKS SCREECHING, BUT NO KNOWN CRASHES. I SCARED ME TO DEATH AS THIS COULD HAVE IT COULD HAVE CAUSE A MULTI-CAR CRASH. I PULLED OFF THE FWY AND INTO A NEARBY GAS STATION AND CALLED AAA TO TOW MY VEHICLE TO THE MERCEDES REPAIR CENTER. THEY CANNOT RE-CREATE THE PROBLEM AND I WILL NOT TAKE MY CAR BACK UNTIL I AM SURE THE PROBLEM HAS BEEN FIXED. MERCEDES NEEDS TO RE-OPEN THIS CASE AND FIND OUT WHAT IS HAPPENING. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

Electrical System
Filed Apr 4, 201450,000 milesMI

I, 12 YEARS AGO WAS DRIVING MY ML 500 MERCEDES ON US 23 BETWEEN ANN ARBOR, MICHIGAN AND SYLVANIA, IN OHIO. MY CAR SUDDENLY LOST ALL POWER. I FORTUNATELY WAS ABLE TO SWERVE TO THE RIGHT AND THE CAR STOPPED. THIS OCCURRED TWICE. I HAVE SINCE SOLD MY CAR SEVERAL YEARS AGO. I CALLED MY DEALERSHIP IN SYLVANIA AT THE TIME, AND THEY CHECKED WITH MERCEDES, WHO RELAYED THAT IT HAS TO DO WITH THE WEIGHT OF THE KEYS ON MY KEYCHAIN. THIS SOUNDED EERILY SIMILAR TO WHAT APPARENTLY HAS OCCURRED WITH THE GM CARS BEING RECALLED. PLEASE MAKE SURE THIS ISSUE IS INVESTIGATED FURTHER SO THAT NO INJURIES THAT CAN BE PREVENTED HAPPEN . REGARDS, *TR

Steering
Filed Mar 19, 2013169,700 milesNC

POWER STEERING FLUID LEAKING IN SMALL DRIPS WHEN PARKED. HARD TO STEER AT TIMES AND MAKES LOUD NOISE. HAVE CONCERNS THAT STEERING MAY BE AFFECTED AND CAUSE TOTAL LOSS OF STEERING. *TR

Visibility
Filed Nov 30, 201197,000 milesCA

TL* THE CONTACT OWNS A 2002 MERCEDES ML500. WHILE DRIVING AT NIGHT AT ANY SPEED, THE CONTACT NOTICED AN OPTICAL DISTORTION ON THE REAR VIEW MIRROR WHICH AFFECTED HIS VISIBILITY OF THE VEHICLES LOCATED IN THE REAR. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING WHERE THE TECHNICIAN STATED THE REAR VIEW MIRROR HAD TO BE REPLACED. THE TECHNICIAN STATED THE INTERIOR OF THE MIRROR CONTAINED LIQUID WHICH DETERIORATED OVER TIME AND CAUSED THE DISTORTION. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 97,000.

Steering › Hydraulic Power Assist › Hose, Piping, and Connections
Filed Dec 6, 2010100,726 milesFL

TL* THE CONTACT OWNS A 2002 MERCEDES BENZ ML 500. THE VEHICLE WAS REPAIRED BY AN AUTHORIZED DEALER UNDER THE RECALL ASSOCIATED WITH NHTSA CAMPAIGN ID NUMBER: 08V465000 (STEERING: HYDRAULIC POWER ASSIST: HOSE, PIPING, AND CONNECTIONS). WHEN RECEIVING THE VEHICLE FROM THE AUTHORIZED DEALER, THE CONTACT BEGAN TO NOTICE POWER STEERING FLUID LEAKING ONTO THE GROUND WHEREVER THE VEHICLE WAS PARKED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE IT WAS CONFIRMED THAT POWER STEERING FLUID WAS LEAKING FROM THE VEHICLE BUT NO REMEDY WAS OFFERED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE PERSISTED. THE FAILURE MILEAGE WAS 100,726 AND THE CURRENT MILEAGE WAS 101,000.

Service Brakes, Hydraulic › Foundation Components › Hoses, Lines/Piping, and Fittings
Filed Dec 1, 2010MA

2002 MERCEDES BENZ ML 500. CONSUMER WRITES REGARDING VEHICLE BRAKE FAILURE *TGW THE CONSUMER STATED THE BRAKES FAILED ON THE VEHICLE DUE TO THE BRAKE LINES LEAKING. *JB

Vehicle Speed Control
Filed Feb 12, 2010110,500 milesIL

WHILE DRIVING AT 70 MPH WITH CRUISE CONTROL ON ESP/BAS LIGHT CAME ON. CRUISE CONTROL FAILED TO DISENGAGE WHEN BRAKE PEDAL PUSHED TO SLOW VEHICLE, CAUSING ENGINE TO RACE FORCING VEHICLE TO SPEED UP ALMOST CRASHING INTO VEHICLE AHEAD. CRUISE CONTROL COULD ONLY BE DISENGAGED BY PUTTING TRANSMISSION INTO NEUTRAL AND DEPRESSING BRAKE. THIS IS FIRST TIME FAILURE OCCURRED. DEALER REPLACES STOP LAMP SWITCH (PART IS AVAILABLE), RECOMMENDED REPLACING BRAKE PRESSURE SENSOR AND BAS RELEASE SWITCH AT A COST TO ME OVER $1,000. I BELIEVE THIS IS A SERIOUS SAFETY MATTER. *TR

Engine and Engine Cooling
Filed Oct 21, 2009117,000 milesCA

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.

Exterior Lighting › Brake Lights › Switch
Filed Aug 7, 20099,000 milesIN

TL*THE CONTACT OWNS A 2002 MERCEDES BENZ ML500. THE CONTACT STATED THAT THE BRAKE LIGHT SWITCH FAILED. THE FAILURE OCCURS CONSTANTLY AND PREVENTS HIM FROM SHIFTING OUT OF PARK. THE FAILURE HAS OCCURRED APPROXIMATELY ELEVEN TIMES. THE DEALER CONTINUED TO REPLACE THE STOP LIGHT SWITCH INSTEAD OF RE-ENGINEERING THE PART AND ISSUING A RECALL. THE CONTACT STATED THAT IT WAS A HUGE SAFETY HAZARD DRIVING WITHOUT BRAKE LIGHTS. THE FAILURE MILEAGE WAS 9,000 AND CURRENT MILEAGE WAS 112,000. UPDATED 09/23/09. *LJ THE CONSUMER STATED IF THE PART FAILS AND THE STOP LIGHT DOES NOT WORK HE CAN'T TURN OFF THE SPEED CONTROL IF IT IS BEING USED AND THERE ARE NO BRAKE LIGHTS AND THE VEHICLE WON'T COME OUT OF PARK. IF IT FAILS WITH THE BRAKE LIGHTS ON, THE LIGHTS NEVER GO OUT. UPDATED 09/23/09*JB

Steering
Filed Mar 7, 2009135,257 milesNJ

MY CAR LOST ALL OF THE POWER STEERING FLUID AND I ALMOST HAD AN ACCIDENT. I LOST ALMOST ALL STEERING CONTROL. IT IS RELATED TO MERCEDES BENZ RECALL #2003-040005. I RECEIVED A LETTER ABOUT THIS RECALL AND IT SAID MY CAR HAD ALREADY BEEN FIXED. THEY SAID THAT IS WHAT THEIR RECORDS SHOW. THAT IS NOT TRUE AND NOW I ALMOST LOST MY LIFE BECAUSE OF THIS DEFECT AND I AM QUITE UPSET. MY CAR IS COMPLETELY IMMOBILE. *TR

Steering
Filed Feb 24, 200940,752 milesNY

TL*THE CONTACT OWNS A 2002 MERCEDES BENZ ML500. THE CONTACT STATED THAT THE SEAL IN THE POWER STEERING PUMP FAILED AND THE VEHICLE BEGAN TO LOSE FUEL. THE REPAIR SHOP REPLACED THE POWER STEERING PUMP AT THE COST OF $525.22. THE VEHICLE WAS REPAIRED ACCORDING TO A RECALL FIVE YEARS PRIOR TO THIS FAILURE. TEN DAYS LATER, THE CONTACT RECEIVED A RECALL NOTICE FOR NHTSA CAMPAIGN ID NUMBER 03V121000 (STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS). HE CALLED THE DEALER AND STATED THAT THERE WAS AN ISSUE WITH THE POWER STEERING PUMP, IN WHICH HE PAID TO HAVE REPAIRED PRIOR TO RECEIVING THE RECALL NOTICE. THE DEALER AND MANUFACTURER STATED THAT NO REIMBURSEMENT WOULD BE PROVIDED. THE FAILURE MILEAGE WAS 40,752.

Steering
Filed Feb 19, 2009102,041 milesGA

IN MARCH OF 2003 MERCEDES INITIATED A RECALL FOR MY VEHICLE FOR A PROBLEM WITH THE POWER STEERING HOSE, THE CAR WAS TAKEN IN FOR SERVICING AND THE PROBLEM SUPPOSEDLY FIXED. ON APRIL 2ND OF 2008 I TOOK THE CAR TO MERCEDES BECAUSE IT WAS MAKING A REALLY LOUD SOUND I WAS TOLD THAT THE POWER STEERING HOSE WAS LEAKING A $665 FIX. I HAD THE WORK DONE. ON APRIL 15TH OF 2008 THE CHECK ENGINE LIGHT CAME ON TOOK THE CAR BACK TO MERCEDES AND WAS TOLD THE POWER STEERING PUMP NEEDED TO BE REPLACED A $1211 FIX. I WAS FURIOUS AT THIS POINT. IN SEPTEMBER OF 2008 THE NHTSA ISSUED A RECALL ON THE MODEL FOR A PROBLEM WITH THE CLAMP FOR THE POWER STEERING HOSE. I CONTACTED MERCEDES WHEN I BECAME AWARE OF THIS RECALL EARLIER THIS WEEK. I WAS TOLD THAT THE HOSE THAT WAS REPLACED ON MY CAR'S POWER STEERING SYSTEM IS NOT THE ONE BEING RECALLED. I DO NOT QUALIFY FOR THE RECALL BECAUSE MY CAR'S VIN NUMBER WAS NOT A PART OF THE SPECIFIC CARS THAT WERE RECALLED EVEN THOUGH IT WAS INCLUDED IN THE 2003 RECALL. I ARGUED THAT MY POWER STEERING PUMP WENT BAD BECAUSE OF MERCEDES NEGLIGENCE WITH THE HOSE ISSUE AND I HAVE GOTTEN NOWHERE WITH THEM. THE DEALER WILL NOT HELP ME AND MB USA WILL NOT HELP ME BECAUSE MY VIN IS NOT ON THAT RECALL EVEN THOUGH I AM STILL HAVING THE ISSUE AND YES MY CAR IS STILL LEAKING FLUID ALL OVER MY GARAGE. *TR

Visibility › Defroster/Defogger/Hvac System
Filed Jan 26, 2009109,000 milesMA

I HAVE 2002 MERCEDES ML-500 AND MY CLIMATE CONTROL DOES NOT WORKS AND BLOWING COOLED AIR ALL THE TIME EVEN WHEN I SELECTED TO FULL HOT. I DID BUY MERCEDES SHOP MANUAL AND AS I WAS READING THE SERVICE BULLETINS ISSUED BY MERCEDES MANUFACTURER I FOUND THAT THE FACTORY IS AWARE OF THIS ISSUE THE A/C SYSTEM SOMETIMES DOES NOT PRODUCE HEAT OR COOLED AIR. MERCEDES CONFORMED THAT CERTAIN CONTROL UNITS PART NUMBERS HAVE LOW VOLTAGE PROBLEMS WHICH CAUSES THIS AND THE WANT THE CAR OWNER TO REPLACE THE A/C CONTROL UNIT WITH THE UPDATED PART NUMBER 163 829 57 89 AT THE CAR OWNER EXPENSE BECAUSE AS THEY SAY IT IS NOT SAFETY ISSUE? WELL CAN THAT BE WHEN YOU DON'T HAVE HEAT IN THE VERY COLD / SNOW WEATHER AS WE HAVE HERE IN BOSTON? AS FAR AS I AM CONCERN THIS IS A SAFETY ISSUE WHEN IT COMES TO HEATING THE WINDSHIELD IN THE BAD WINTER STATES. PLEASE LET ME KNOW IF MY COMPLAIN MAKES CORRECT. *TR

Service Brakes, Hydraulic
Filed Jan 11, 2009108,631 milesCA

FOUND IDENTICAL PROBLEM PER NHTSA ACTION # EA08009 DEFECT INVESTIGATION. CONSTANT LOSS OF BRAKE PRESSURE. WARNING LIGHTS INDICATED LOW BRAKE FLUID. FOUND FLUID UNDER CAR AND IN FRONT LEFT WHEEL-WELL. UPON INSPECTION, FOUND BRAKE HARD LINE FROM MASTER CYLINDER WAS CHAFFED FROM ADJACENT FUEL LINE, CAUSING SMALL PIN-HOLE LEAK IN BRAKE LINE. WHEN BRAKES WERE APPLIED, BRAKE FLUID WOULD SPRAY OUT, RESULTING IN INSUFFICIENT BRAKING PRESSURE TO HOLD VEHICLE AT STOPS. CONTACTED MERCEDES DEALERSHIP SERVICE DEPARTMENT, THEY WERE UN-AWARE OF ANY PROBLEMS ASSOCIATED WITH THIS. ESTIMATED COST OF REPAIR WAS >$1000. ($112 FOR PART, $975 FOR 6HRS LABOR) PART NUMBER: A1634201526 PURCHASED LENGTH OF HARDLINE MYSELF AT PARTS STORE. CONSTRUCTED AND INSTALLED MY OWN REPLACEMENT PART FOR $155 INCLUDING PURCHASE OF TOOLS TO COMPLETE JOB. *TR

Steering
Filed Nov 26, 2008GA

THIS CAR WAS PURCHASED IN SACRAMENTO CA IN AUG OF 06, AT THIS TIME WE ALSO PURCHASED AN EXTENDED 2 YEAR WARRANTY WHICH WE UNDERSTOOD TO BE EXPIRING IN AUG OF 08. THE CAR WORKED FINE WITH NO ISSUES UNTIL SEPT OF 07. I STARTED THE CAR AT 4 AM TO HEAD TO WORK AND IT MAKE A REALLY LOUD NOISE, IT GOT WORSE WHEN I TURNED THE STEERING WHEEL. I CONTACTED THE MB DEALER AND WAS TOLD TO BRING THE CAR INTO THE DEALERSHIP. I EXPRESSED CONCERN ABOUT NOT WANTING TO DRIVE THE CAR MAKING THAT SOUND, HE ASSURED ME THAT IT WAS FINE. I BROUGHT THE CAR INTO THE DEALERSHIP AND WAS TOLD IT JUST NEEDED POWER STEERING FLUID SO THEY WILL TOP IT OFF FOR ME AT NO CHARGE AND IT WILL BE FINE. TOOK MY CAR AND LEFT. TWO MONTHS LATER ON NOV1ST, SAME ISSUE, TOOK THE CAR IN AGAIN, WAS TOLD WE WILL JUST TOP IT OFF FOR YOU AT NO CHARGE, TOOK MY CAR AND LEFT AGAIN. ON NOV 15TH I HAD MY CAR TRANSFERRED TO ATLANTA BY MOVING TRUCK SINCE I WAS MOVING BUT DID NOT WANT TO PUT THE MILEAGE ON IT. TOOK IT TO MB FOR ITS REGULAR SERVICING 1 WEEK LATER NO PROBLEMS WERE FOUND AT THAT TIME."" ON APR 5TH 08 THE NOISE CAME BACK, I TOOK THE CAR TO THE DEALERSHIP AND WAS TOLD WE WOULD JUST TOP IT OFF FOR YOU BUT WE NOTICED THAT THERE ARE SOME LEAKS SO YOU MAY WANT TO BRING IT IN TO GET THAT CHECKED OUT. I DID THIS 2 DAYS LATER AND WAS TOLD IT WAS THE POWER STEERING HOSE AN $800 FIX THAT WAS NOT COVERED BY MY WARRANTY. I HAD THE WORK DONE. ON APR 20TH MY CHECK ENGINE LIGHT CAME ON, I WENT BACK TO THE DEALERSHIP HAD TO PAY AGAIN FOR

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Abs Warning Light
Filed May 4, 200777,000 milesNJ

WHILE DRIVING, ML500 BEGAN TO BRAKE RANDOMLY . ALSO ABS TURNED ON WHILE STOPPING AND ACCELERATING. ALSO BRAKES WERE CONSTANTLY SCREECHING. WARNING LIGHTS FOR ABS, BAS, AND WASHER FLUID. FLUID LEVEL WAS FINE. I TOLD DEALER ABOUT THESE PROBLEMS BEFORE WARRANTY HAD EXPIRED. THEY RAN A DIAGNOSTICS TEST AND FOUND NOTHING WAS WRONG. THEY ADVISED ME TO BRING THE VEHICLE IN SHOULD THE SAME EVENTS OCCUR. (THE RANDOM BREAKING BEGAN TO OCCUR AFTER WARRANTY EXPIRED). THE PROBLEM CONTINUED TO PERSIST AND WITH THE FAILURE OF ABS SYSTEM, I BROUGHT THE ML500 BACK TO THE SERVICE CENTER. AFTER TWO DAYS, I RETRIEVED THE VEHICLE AND THE COST TO REPAIR WAS $1100.00. "CONVENIENTLY" THEY FOUND THE SAME PROBLEMS I SPOKE OF BEFORE AFTER THE WARRANTY WAS UP. WE HAD NO CHOICE BUT TO PAY TO RESTORE FUNCTION TO THE VEHICLE. AFTER TAKING IT HOME WE NOTICED THAT THE THERE WAS NO SOUND IN THE VEHICLE. THE SOUND AND NAVIGATION VOICE WORKED PERFECTLY BEFORE GETTING SERVICE. AND AFTERWARDS IT DID NOT. WE CALLED THE SERVICE CENTER, AND THEY SAID TO BRING IT BACK AT OUR EARLIEST CONVENIENCE, AND THEY WILL FIX THE PROBLEM. I ASSUME THAT THIS WAS A MISTAKE ON THEIR PART. WHEN I RETURNED TO RESTORE THE SOUND THEY APPROACHED ME AND TOLD ME THAT A "VOICE MODULATION UNIT" BENEATH THE DRIVER'S SEAT HAD GONE OUT, AND THAT IT WOULD COST $750.00 PARTS AND LABOR TO REPAIR. THEY TRIED TO EXPLAIN TO ME THAT THIS WAS JUST A COINCIDENCE, AND THAT THE UNIT WAS IN NO WAY RELATED OR CIRCUIT LINKED TO THE SENSORS THEY REPLACED. I

Engine and Engine Cooling
Filed Apr 24, 200751 milesIN

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

Vehicle Speed Control
Filed Feb 11, 2006IL

I OWN A 2002 MERCEDES BENZ ML500. A WEEK AGO I EXPERIENCED SUDDEN ACCELERATION WHILE DRIVING ON AN INTERSTATE. AS I WAS ACCELERATING THE CAR SUDDENLY ACCELERATED (THE GAS PEDAL WENT TO THE FLOOR) AND I WAS UNABLE TO STOP THE CAR DESPITE FULLY DEPRESSING THE BREAK PEDAL. THE CAR REACHED 80+ MPH AND I WAS FORCED TO DRIVE OFF OF THE ROAD TO AVOID AN ACCIDENT (I WAS ABLE TO SLOW IT TO ABOUT 50 MPH BY FULLY DEPRESSING THE BREAK PEDAL). I WAS FINALLY ABLE TO STOP THE CAR BY SHIFTING INTO NEUTRAL (IT HAS AN AUTOMATIC TRANSMISSION; WHEN I SHIFTED TO NEUTRAL THE ENGINE IMMEDIATELY DECELERATED). OVER THE NEXT 40 MILES I EXPERIENCED SUDDEN ACCELERATION 10+ TIMES. THIS OCCURRED BOTH WHILE I WAS ACCELERATING AND WHILE I WAS BRAKING. WHILE ATTEMPTING TO STOP AT A STOP SIGN IN MY SUBDIVISION THE CAR ACCELERATED AND DROVE THROUGH THE STOP SIGN. I PARKED THE CAR IN MY GARAGE AND CALLED MY MB DEALER. I ASKED TO HAVE THE CAR TOWED TO THE DEALER AND I WAS TOLD THAT THEY WOULD NOT DO THIS. I EXPLAINED THE ISSUE TO THEM AND THEY SEEMED UNCONCERNED. I HAVE NOT DRIVEN THE CAR AGAIN SINCE THIS OCCURRED (I WILL NOT EVER DRIVE IT AGAIN). *NM

Service Brakes, Hydraulic › Foundation Components › Disc › Pads
Filed Oct 22, 200422,014 milesVA

WARRANTY ISSUES AND/OR MANUFACTURING DEFECTS THAT SHOULD BE COVERED BY WARRANTY. ON OCTOBER. 21, 2003 TOOK MY ML500 YEAR 2002 TO DEALER FOR SQUEALING AND SCRAPING BRAKES. SERVICE DEPARTMENT COULD NOT DIAGNOSE THE PROBLEM THE SQUEALING AND SCRAPING AND TOLD ME THAT BRAKE DISC AND PADS LOOKS FINE. HOWEVER THEY ADVISED ME TO BUY NEWER VERSION OF BRAKE PADS, WHICH WOULD NOT SQUEAL. I REFUSED TO BUY BRAKE PADS, AS THEY SHOULD BE COVERED UNDER WARRANTY. I WAS NOT SATISFIED, THEREFORE TOOK THE VEHICLE AGAIN NEXT DAY (OCTOBER 22,2003) AND TALKED TO THE SALES PERSON FROM WHOM I BOUGHT THE VEHICLE. HE AND SERVICE MANAGER PERFORMED TEST DRIVE. DEALERSHIP CHECKED THE BRAKES AGAIN AND TOLD THE SQUEALING AND SCRAPPING WAS DUE TO A ROCK STUCK BETWEEN BRAKE PADS AND DISC. SINCE YESTERDAY, I HAD DRIVEN MY VEHICLE ONLY 24 MILES BUT NOW THE PADS AND ROTORS HAVE BEEN DAMAGED. BECAUSE OF THEIR NEGLIGENCE AND UNABLE TO DIAGNOSE THE PROBLEM, DEALERSHIP CHARGED ME $348.04 FOR MY 18 MONTHS OLD VEHICLE, THAT SHOULD HAVE BEEN COVERED UNDER WARRANTY. DEALERSHIP AND MERCEDES BENZ DID NOT HONOR THE WARRANTY. SAME DAY, ANOTHER CUSTOMER CAME TO THE DEALERSHIP WITH SIMILAR PROBLEM, HIS MERCEDES ALSO HAD A ROCK STUCK BETWEEN BRAKE PADS AND ROTORS. THIS APPEARS TO BE A COMMON DEFECT IN THE MERCEDES THAT NEEDS TO BE FIXED FOR THE SAFETY OF ALL. *AK

Vehicle Speed Control
Filed Jun 25, 2004FL

TGHE ACCELERATOR PEDAL IS STICKY AND NOTCHY. THIS CONDITION MADE SMOOTH ACCELERATION EXTREMELY DIFFICULT. *AK *TS

Service Brakes, Hydraulic
Filed Jan 23, 200410,000 milesFL

WARRANTY ISSUES AND/OR MANUFACTURING DEFECTS THAT SHOULD BE COVERED BY WARRANTY. *PH AT THE FIRST 10,000 MILES, THE CONSUMER NOTICED BRAKE TRAVEL WAS TOO LONG AND WAS ADVISED BY AN SERVICE ADVISOR THAT THIS WAS NORMAL. HOWEVER AT LESS THAN 3,000 MILES, THE BRAKES WERE STILL NOT ADEQUATE AND THERE WAS A SQUEAKING NOISE FROM THE REAR BRAKES WHEN BRAKING. THIS TIME, THE CONSUMER WAS ADVISED THAT THE REAR BRAKE PADS WERE GONE AND THE ROTORS WERE SCORED DUE TO TOO MUCH CITY DRIVING AND THE SERVICE ADVISOR WOULD NOT HONOR REPAIRS UNDER WARRANTY. *TT *JB

Power Train › Automatic Transmission › Control Module (tcm/Pcm/Tecm)
Filed Jul 28, 20039,000 milesFL

THE GEARS JAMMED WHEN THE CONSUMER ATTEMPTED TO PUT THE VEHICLE IN REVERSE. THE VEHICLE WOULD REV TO ABOUT 2000 RPM'S OR MOR BUT THE VEHICLE STILL WOULDN'T MOVE. AFTER SEVERAL ATTEMPT THE VEHICLE WOULD EVENTUALLY MOVE. THE DOORS WERE DIFFICULT TO CLOSE. THE VEHICLE CONSUMED ALOT OF FUEL. THE FUEL GAUGE DIDNT WORK PROPERLY. STEERING WHEEL DIDN'T DISENGAGE FROM THE IGNITION AND EXCESSIVE REFLECTION FROM GLARE SHIELD ONTO THE WINDSHIELD. *PH *NLM

Power Train › Automatic Transmission
Filed Oct 24, 2002NV

TRANSMISSION STUCK IN FIRST GEAR, THREE ATTEMPTS TO REMEDY BY OWNER, FINALLY ON FOURTH ATTEMPT.(PLACING IN PARK AND TURNING OFF AN ON IGNITION) TRANSMISSION FINALLY WOKED NORMALLY. CONTACTED MANUFACTURER THROUGH ROADSIDE ASSISTANCE TOLD TO RETURN VEHICLE TO DEALER, CONTACTED DEALER, WAS TOLD THAT THEY HAVE SEEN THIS PROBLEM ON THIS MODEL SEVERAL TIMES. THOUGHT I SHOULD ADVISE SOMEONE AT NHSTA. DT

All 27 complaints, reproduced as filed.

Across model years

Worst on record: 2006
YearComplaintsRecallsFiresDeathsAssessment
20111000Routine
20080100Do not drive
20079250Do not drive
200637250Do not drive
20053000Routine
200418030Routine
200313020Routine
2002 — this page27100Routine

Compare every ML500 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.

Recall repairs are free for as long as the recall stands. Check whether a specific car still has open work at NHTSA's VIN lookup.

Most recent recall on file: Sep 10, 2001. Source: NHTSA Office of Defects Investigation.