RoadVitals

1999 Mercedes-Benz M Class Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
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Latest Sep 6, 2011
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
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Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
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What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 1999 Mercedes-Benz M Class, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Steering623.1%
  • Electrical415.4%
  • Engine415.4%
  • Seat belts311.5%
  • Fuel system27.7%
  • Powertrain (other)27.7%
  • Visibility13.8%
  • Driver assistance13.8%
  • Tires & wheels13.8%
  • Transmission13.8%
  • Brakes13.8%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Steering

Reports naming the steering system — racks, columns, power-steering assist and steering linkage.

6
reports

From owner reports, verbatim

WHEN TRYING TO TURN MY VEHICLE FROM A PARKING LOT, THERE WAS A SUDDEN LEAKAGE OF POWER STEERING FLUID AND THE STEERING WHEEL BECAME SO HARD TO TURN. THE CAR WAS NOT IN DRIVABLE CONDITION AND I TOWED IT TO MY NEAREST SERVICE STATION. AFTER DIAGNOSIS, POWER STEERING HOSE AND CLAMP WERE REPLACED AND THE CAR IS RUNNING GOOD NOW. LATER I FOUND THAT THIS IS A KNOWN ISSUE IN 1999 MERCEDES ML 320 AND FOUND RECALL CAMPAIGN DETAILS OF THIS ISSUE IN NHTSA WEBSITE. BUT WHEN I CALLED MERCEDES USA TO GET A REIMBURSEMENT FOR THE REPAIR COST, THEY ARE REFUSING TO GIVE REIMBURSEMENT FOR A STRANGE REASON. I AM STILL FOLLOWING THIS ISSUE WITH THEM. *TR

NHTSA ID 10292555 · filed Nov 17, 2009

MY CAR STOPPED STEERING. I COULD NOT TURN THE STEERING WHEEL. IT OCCURRED ON SATURDAY, DECEMBER 13,2008. I HAD MY CAR TOWED TO A MEINEKE SHOP. THEY DISCOVERED THAT MY HOSE AND CLAMP HAD TO BE REPLACED. I WENT TO MY CLOSEST MERECEDES BENZ SERVICE CENTER IN GREENWICH, CT THE NEXT WEEK. THEY COMPLETED THE REPAIR. I SUBMITTED MY MEINEKE BILL OF $50.35 FOR REIMBURSEMENT TO MY SALESMAN, PHIL BOUTALL. I WAS TOLD THAT I WOULD GET THE REFUND IN A FEW DAYS. IT HAS NOW BEEN OVER 3 MONTHS. I HAVE MADE NUMEROUS CALLS TO MR BOUTALL AND SPOKE TO HIM PERSONALLY AS WELL AS LEFT MESSAGES. BESIDES EMPTY PROMISES AND UNRETURNED VOICE MAILS I HAVE NOT RECEIVED MY REIMBURSEMENT. *TR

NHTSA ID 10261954 · filed Mar 16, 2009

Too few reports in this category for a page of its own — they appear in the full complaint list.

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

4
reports

From owner reports, verbatim

MY 1999 MERCEDES ML320 STALLED IN TRAFFIC ON THE INTERSTATE. I HAD IT TOWED TO THE DEALER WHO REPLACED THE CRANKSHAFT POSITION SENSOR WHICH SHOWED A MARGINAL PROBLEM. WE PICKED UP THE CAR AND BROUGHT TO THE ATTENTION OF THE MANAGER THAT THE "CHECK ENGINE" WAS ILLUMINATED. HE SAID THAT WAS BECAUSE THERE WERE SOME PLUGS MISFIRING, BUT THAT WOULD HAVE NO BEARING ON THE CAR STALLING. THE NEXT DAY, THE CAR STALLED IN TRAFFIC AND WAS AGAIN TOWED TO THE DEALER. THEY CAN FIND NOTHING WRONG WITH THE CAR AND SAY IT RUNS LIKE A TOP. WE REFUSED TO TAKE THE CAR UNTIL THE PROBLEM WAS RESOLVED SO IT WAS DECIDED THAT A TECHNICIAN WOULD DRIVE THE CAR UNTIL IT STALLED AGAIN. THAT HAS BEEN GOING ON FOR ONE WEEK WITH NO STALLING. WE ARE AT A LOSS AS TO HOW TO PROCEDE WITH THIS ISSUE. WE DO NOT FEEL IT IS SAFE TO DRIVE THE CAR BECAUSE WE FEAR IT WILL STOP AGAIN IN TRAFFIC AND CAUSE AN ACCIDENT AND/OR DEATHS. *TR

NHTSA ID 10360111 · filed Oct 12, 2010

MY 1999 ML 320'S ENGINE RECENTLY (27 AND 29 SEPT 05) INSTANTANEOUSLY STALLED WITHOUT WARNING WHILE DRIVING-NO CHECK ENGINE LIGHT, JUST DIED IN THE MIDDLE OF THE ROAD!. GOOD WX, NO RAIN, DRY, DAYTIME. IT RESTARTED AFTER 5 MINS. TRAFFIC WENT AROUND ME. ML IS WELL MAINTAINED,VEHICLE HAS 117K MILES. MECHANIC COULD NOT DUPLICATE (NO CODES). FUEL PUMP CHECKED OK. AT MY REQUEST, THE MECH CHANGED OUT THE CRANKSHAFT POSITION SENSOR (CPS) ON 30 SEPT. COST TO REPAIR $251.96. ML320 HAS RUN FINE SO FAR (7OCT). I FEEL THAT THIS SUDDEN ENGINE FAILURE (CPS) WHILE DRIVING IS A SIGNIFICANT SAFETY ISSUE. DO YOU HAVE ANY INFORMATION ON THIS TYPE OF ML 320 ENGINE FAILURE CAUSED BY A FAILED CPS-PROBLEM. *JB

NHTSA ID 10139067 · filed Oct 7, 2005

Too few reports in this category for a page of its own — they appear in the full complaint list.

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

4
reports

From owner reports, verbatim

MY 1999 ML 320'S ENGINE RECENTLY (27 AND 29 SEPT 05) INSTANTANEOUSLY STALLED WITHOUT WARNING WHILE DRIVING-NO CHECK ENGINE LIGHT, JUST DIED IN THE MIDDLE OF THE ROAD!. GOOD WX, NO RAIN, DRY, DAYTIME. IT RESTARTED AFTER 5 MINS. TRAFFIC WENT AROUND ME. ML IS WELL MAINTAINED,VEHICLE HAS 117K MILES. MECHANIC COULD NOT DUPLICATE (NO CODES). FUEL PUMP CHECKED OK. AT MY REQUEST, THE MECH CHANGED OUT THE CRANKSHAFT POSITION SENSOR (CPS) ON 30 SEPT. COST TO REPAIR $251.96. ML320 HAS RUN FINE SO FAR (7OCT). I FEEL THAT THIS SUDDEN ENGINE FAILURE (CPS) WHILE DRIVING IS A SIGNIFICANT SAFETY ISSUE. DO YOU HAVE ANY INFORMATION ON THIS TYPE OF ML 320 ENGINE FAILURE CAUSED BY A FAILED CPS-PROBLEM. *JB

NHTSA ID 10139067 · filed Oct 7, 2005

I WAS DRIVING ACROSS THE VERRAZANO NARROWS BRIDGE FROM BROOKLYN TO STATEN ISLAND. JUST PAST THE TOLLS, MY HARMONIC BALANCER FAILED, CAUSING THE SERPENTINE BELT TO SIZES AND STOPPING THE ENGINE. CONSEQUENTLY, I LOST STEERING AND BRAKING BECAME VERY HARD. I WAS MORE-OR-LESS POINTING TO AN SHOULDER/EMBANKMENT BETWEEN THE MAIN HIGHWAY AND THE EXIT IMMEDIATELY PAST THE TOLLS. I COASTED TO THAT EMBANKMENT AND USED ITS SLOPE IN PART TO HELP STOP THE VEHICLE. I WAS SUBSEQUENTLY TOWED TO RAY CATENA MERCEDES IN EDISON, NJ. I WAS INFORMED BY THE SERVICE ADVISOR THERE (MR. HESSERT) THAT THIS FAILURE WAS PART OF A "CAMPAIGN" AND THAT IT WOULD BE REPAIRED ALONG WITH ANY COLLATERAL DAMAGE "FOR FREE" BY MERCEDES. I ASKED "SINCE WHEN" WAS THIS CAMPAIGN IN EFFECT, THEY STATED SINCE APRIL OF 2005. I ASKED WHY I WAS NOT NOTIFIED OF THIS AS I AM THE REGISTERED OWNER. WE BOTH TOGETHER THEN CALLED MERCEDES CUSTOMER SERVICE AND WERE INFORMED THAT THERE WAS NO 'NOTICE' AND THAT THIS WAS NOT A FORMAL RECALL. HAD THIS FAILURE HAPPENED 40 MINUTES EARLIER WHILE I WAS ON THE LONG ISLAND EXPRESSWAY, OR 10 MINUTES LATER WHEN I WOULD HAVE BEEN ON THE GOETHALS BRIDGE, I WOULD HAVE BEEN AT THE VERY LEAST SEVERELY INJURED IF NOT DEAD NOT TO MENTION ANY OTHER VEHICLES AND INDIVIDUALS WHO WOULD INEVITABLY BEEN INVOLVED. I AM TOLD THAT THE _DEFECTIVE_ HARMONIC BALANCER WILL BE REPLACED ALONG WITH THE SERPENTINE BELT AND THE "UPPER OIL PAN" AS THAT PART WAS DAMAGED DURING THE FAILURE. I WILL REQUEST THAT THESE PARTS BE RETAINED.

NHTSA ID 10134187 · filed Aug 25, 2005

Too few reports in this category for a page of its own — they appear in the full complaint list.

Seat belts

Reports naming seat belts, buckles, retractors and pretensioners.

3
reports

From owner reports, verbatim

NHTSA CAMPAIGN 99V328000. SEAT BELT BUCKLE RECALL. SEAT BELT BUCKLE EVEN AFTER THE RECALL INSPECTION AND REPLACEMENT IS DEFECTIVE, THE CONNECTION IN BETWEEN METAL SPRING AND PLASTIC IS UNSAFE AND UNSAFE, IT IS MADE OUT OF CHEAP PLASTIC, EVENTUALLY PLASTIC WILL FAIL AND SEAT BELT WILL UNLATCH. IT WILL CAUSE SERIOUS INJURIES IN A CRASH OR HARD STOP, MERCEDES IS NOT OFFERING ANY WARRANTY OR REPLACEMENT I WAS KICKED OUT OF THE DEALER WHEN I COMPLAINED, THEY SAID THEY WILL CALL THE POLICE ON ME. *TR

NHTSA ID 10373917 · filed Jan 3, 2011

TRANSMISSION FAILED, REPAIRED FOUR TIMES, ELECTRICAL SYSTEM, BATTERY FAILED, REPLACED, OZ SENSOR FAILED REPLACE 3 TIMES, FUEL SYSTEM PUMP AND SENSOR REPLACED, FRONT PASSENGER RESTRAINT SYSTEM FAILED

NHTSA ID 9001677 · filed Jul 10, 2000

Too few reports in this category for a page of its own — they appear in the full complaint list.

Fuel system

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.

2
reports

From owner reports, verbatim

CAR CAUGHT ON FIRE WHILE DRIVING IN NORMAL CITY TRAFFIC. SMOKE BEGAN COMING OUT OF THE RIGHT SIDE OF THE HOOD. PULLED OVER IMMEDIATELY AND GOT OUT OF THE VEHICLE NOTICING FLAMES COMING FROM UNDERNEATH THE FRONT OF THE CAR. BY THE TIME THE FIREFIGHTERS PUT OUT THE BLAZE THE FRONT PART OF THE CAR WAS DESTROYED. THE CASE WAS INVESTIGATED BY PALM BEACH COUNTY FIRE RESCUE. THE VEHICLE WAS METICULOUSLY MAINTAINED BY OWNER. HAS BEEN SERVICED REGULARLY FOLLOWING THE SCHEDULE RECOMMENDED BY MANUFACTURER AND USED FUEL, LUBRICANTS ETC. RECOMMENDED BY MERCEDES BENZ. OWNER BOUGHT THE CAR NEW IN 1999 AND ALWAYS TOOK FOR SERVICES, SAFETY RECALLS AND REPAIRS TO AUTHORIZED MERCEDES BENZ DEALER. AT THE TIME OF THE FIRE, THE CAR HAD ARROUND 55,000 MILES. NOTE: THIS COMPLAIN WAS REPOTED VIA PHONE ALSO. CASE WAS INVESTICATED BY PALM BEACH COUNTY FIRE RESCUE.*AK

NHTSA ID 10054490 · filed Jan 20, 2004

TRANSMISSION FAILED, REPAIRED FOUR TIMES, ELECTRICAL SYSTEM, BATTERY FAILED, REPLACED, OZ SENSOR FAILED REPLACE 3 TIMES, FUEL SYSTEM PUMP AND SENSOR REPLACED, FRONT PASSENGER RESTRAINT SYSTEM FAILED

NHTSA ID 9001677 · filed Jul 10, 2000

Too few reports in this category for a page of its own — they appear in the full complaint list.

Powertrain (other)

Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.

2
reports

From owner reports, verbatim

1999 ML 320 BEGAN JERKING ON MEDIUM GRADES. JERKING WAS REPORTED TO KNOXVILLE TN. MERCEDES BENZ DEALERSHIP. THEY REPORTED THE TRANSFER CASE IS FAILING. THEY INDICATED THAT TO THEIR KNOWLEDGE THERE HAS NEVER BEEN A TRANSFER CASE FAILURE ON AN ML 320. I HAD THE TRANSFER CASE REPLACED AT A COST OF $4300.00. *TR

NHTSA ID 10277218 · filed Jul 17, 2009

DRIVE SHAFT FAILURE. *LA

NHTSA ID 10045211 · filed Oct 31, 2003

Too few reports in this category for a page of its own — they appear in the full complaint list.

Visibility

Reports naming windshields, glass, wipers, defrosters and mirrors.

1
report

From owner reports, verbatim

DESIGN DEFECT IN SIDE REARVIEW MIRROR. IT WILL NOT EXTENDED FAR ENOUGH UP AND OUTWARDS, CAUSING POOR VISIBILITY. *AK *ML

NHTSA ID 864885 · filed Jul 6, 2000

Too few reports in this category for a page of its own — they appear in the full complaint list.

Driver assistance

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.

1
report

From owner reports, verbatim

DRIVING ON TAPPAN ZEE BRIDGE NEAR NYC AND SLOWED DOWN TO APPROX 15 MPH FOR TOLL BOOTH AND TRIED TO ACCELERATE OUT OF THE TOLLS. THE VEHICLE WAS VERY LOUD AND WOULD NOT ACCELERATE. IT ALMOST SOUNDED LIKE I WAS DRIVING OVER RUMBLE STRIPS AND I ALMOST CRASHED TRYING TO PULL OVER AS THE EZ-PASS IS ALL THE WAY ON THE LEFT SIDE OF THE FREEWAY. AFTER I GOT OUT THE FRONT PASSENGER ROTOR/CALIPER WAS ALMOST GLOWING AND ERUPTING WITH SMOKE, THE 3 OTHER BRAKES LOOKED FINE. THE SMOKE DID NOT STOP FOR AT LEAST 10-15 MINUTES AND IT SMELLED ABSOLUTELY TERRIBLE EVEN STANDING 15 FEET AWAY FROM THE VEHICLE. THE VEHICLE HAD TO BE FLAT-BEDDED TO THE DEALERSHIP AND THEY WHERE NOT ABLE TO DIAGNOSE THE ISSUE, THEY SAID IT SEEMED LIKE AN ELECTRICAL PROBLEM. AFTER BRINGING IT TO ANOTHER SHOP THEY SAID IT WAS A FAULTY YAW RATE SENSOR. *TR

NHTSA ID 10424020 · filed Sep 6, 2011

Too few reports in this category for a page of its own — they appear in the full complaint list.

Tires & wheels

Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.

1
report

From owner reports, verbatim

TIRE ALMOST NO TREAD AFTER 31,000 MILES WARRANTY FOR 65,000 MILES. *TR

NHTSA ID 10310206 · filed Feb 13, 2010

Too few reports in this category for a page of its own — they appear in the full complaint list.

Transmission

Reports naming the automatic or manual transmission, including shifting behaviour, shudder, slipping and transmission control modules.

1
report

From owner reports, verbatim

TRANSMISSION FAILED, REPAIRED FOUR TIMES, ELECTRICAL SYSTEM, BATTERY FAILED, REPLACED, OZ SENSOR FAILED REPLACE 3 TIMES, FUEL SYSTEM PUMP AND SENSOR REPLACED, FRONT PASSENGER RESTRAINT SYSTEM FAILED

NHTSA ID 9001677 · filed Jul 10, 2000

Too few reports in this category for a page of its own — they appear in the full complaint list.

Brakes

Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.

1
report

From owner reports, verbatim

DRIVING ON TAPPAN ZEE BRIDGE NEAR NYC AND SLOWED DOWN TO APPROX 15 MPH FOR TOLL BOOTH AND TRIED TO ACCELERATE OUT OF THE TOLLS. THE VEHICLE WAS VERY LOUD AND WOULD NOT ACCELERATE. IT ALMOST SOUNDED LIKE I WAS DRIVING OVER RUMBLE STRIPS AND I ALMOST CRASHED TRYING TO PULL OVER AS THE EZ-PASS IS ALL THE WAY ON THE LEFT SIDE OF THE FREEWAY. AFTER I GOT OUT THE FRONT PASSENGER ROTOR/CALIPER WAS ALMOST GLOWING AND ERUPTING WITH SMOKE, THE 3 OTHER BRAKES LOOKED FINE. THE SMOKE DID NOT STOP FOR AT LEAST 10-15 MINUTES AND IT SMELLED ABSOLUTELY TERRIBLE EVEN STANDING 15 FEET AWAY FROM THE VEHICLE. THE VEHICLE HAD TO BE FLAT-BEDDED TO THE DEALERSHIP AND THEY WHERE NOT ABLE TO DIAGNOSE THE ISSUE, THEY SAID IT SEEMED LIKE AN ELECTRICAL PROBLEM. AFTER BRINGING IT TO ANOTHER SHOP THEY SAID IT WAS A FAULTY YAW RATE SENSOR. *TR

NHTSA ID 10424020 · filed Sep 6, 2011

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .