RoadVitals

2003 Mercedes-Benz ML350 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 Dec 22, 2023
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 2003 Mercedes-Benz ML350, 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

  • Steering1137.9%
  • Engine620.7%
  • Heating & air conditioning413.8%
  • Electrical413.8%
  • Interior & seats310.3%
  • Other / unspecified13.4%

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.

11
reports

From owner reports, verbatim

TL* THE CONTACT OWNS A 2003 MERCEDES-BENZ ML350. WHILE DRIVING 35 MPH, THE STEERING WHEEL BECAME DIFFICULT TO MANEUVER WHEN TURNED TO THE LEFT. THE CONTACT STATED THAT THE VEHICLE EXPERIENCED THE SAME SYMPTOMS AS LISTED IN NHTSA CAMPAIGN NUMBER: 08V465000 (STEERING). THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE POWER STEERING FAILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 175,000.

NHTSA ID 11163528 · filed Dec 26, 2018

I RECENTLY HAD TO REPLACE THE POWER STEERING PUMP, RESEVIOUR, AND HOSE AFTER LOOSING CONTROL WHILE DRIVING ON THE HIGHWAY. IMMEDIATELY AFTER REFILLING WITH FLUID ALL THE CONTENTS RAN RIGHT OUT. I DO SEE THAT THERE WAS A RECALL FOR THIS PROBLEM IN 2008, BUT I DID NOT TAKE OWNERSHIP OF THIS VEHICLE UNTIL 2/15. IS THERE ANY WAY POSSIBLE FOR THIS PROBLEM TO BE FIXED UNDER THE RECALL?

NHTSA ID 10873347 · filed Jun 9, 2016
All 11 reports naming steering

Engine

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

6
reports

From owner reports, verbatim

RANDOM LOSS OF POWER ' (THE ENTIRE PANEL LIGHTS UP) AS THE CAR SUDDENLY AND SLOWLY POWERS OFF WHILE TAKING OFF FROM A DROP, DRIVING, BREAKING, AND TURNING, COMING TO A STOP AND ON THE HIGHWAY. IN THE PAST 6 MONTHS WE HAVE SPENT MORE THAN 3800.00 FOR CAR REPAIR ON THE ML 350. IT SHUTS OFF MORE AND MORE FREQUENTLY. SO MUCH SO WE DO NOT ALLOW OUR DAUGHTER TO DRIVE UNLESS I AM THERE AND NOW NOT EVEN THEN UNTIL WE HAVE HAD IT FIXED FOR THE 4TH TIME (WE THOUGHT) AFTER CRANK SHAFT, SPARK PLUGS AND NOW ELECTRICAL WORK WE ARE AT A TOTAL LOSS. THIS ISSUE IS NOT ISOLATED BUT MERCEDES BENZ HAS HAD OTHER REPORTS OUR AND OTHERS ' NOT REPAIR / OR RECALLED BUT IT SEEMS MAJOR TO OUR FAMILY ' AS MY ONLY VEHICLE AND OTHER OWNER THAT HAVE INVESTED IN THIS MAKE.

NHTSA ID 10861000 · filed Apr 22, 2016

WITHIN THE PAST 8 MONTHS I HAVE TAKEN MY CAR TO THE DEALERSHIP FOUR TIMES WITH THE ISSUE RELATING ENGINE SHUT OFF AND CHECK ENGINE LIGHT COMES ON. I WAS TOLD THE CRANKSHAFT NEEDED TO BE REPLACED TWO TIMES AND AS OF TODAY THE PROBLEMS REMAINS. MERCEDES BENZ HAS ACKNOWLEDGED THIS IS PROBLEM IN THIS VEHICLE BUT HAS NOT ADDRESSED IT. I FEAR DRIVING THIS VEHICLE WITH MY CHILDREN IT SHUT OFF IN THE MIDDLE OF THE HIGHWAY AT ONE POINT AND THEY HAVEN'T ADDRSSED IT. I'VE SPENT $4500 TO REPAIR AND THEY CANNOT RESOLVE THE PROBLEM AND I'M NOT CERTAIN THEY KNOW HOW.

NHTSA ID 10761160 · filed Sep 3, 2015

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

Heating & air conditioning

Reports naming the heating, ventilation and air-conditioning system.

4
reports

From owner reports, verbatim

HEATED SEAT, DRIVER SIDE, BURNT THROUGH SEAT ON LEFT SIDE OF THIGH AND THROUGH CLOTHING. SKIRT AND JACKET DAMAGED. CAR IS UNDER WARRANTY. WOULD LIKE TO KNOW WHY A NATIONAL RECALL HAS NOT BEEN DONE. I UNDERSTAND OTHERS, INCLUDING MGR AT MERCEDES OF GREENWICH WHO EXPERIENCED THE SAME PROBLEM. *JB

NHTSA ID 10179355 · filed Jan 22, 2007

2003 MERCEDES ML 350 SEAT CAUGHT ON FIRE. *TS WHEN THE CONSUMER TURNED ON THE HEAT SEATING DEVICE THAT IS WHEN THE SEATS CAUGHT ON FIRE. *JB

NHTSA ID 10151933 · filed Feb 24, 2006

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

RANDOM LOSS OF POWER ' (THE ENTIRE PANEL LIGHTS UP) AS THE CAR SUDDENLY AND SLOWLY POWERS OFF WHILE TAKING OFF FROM A DROP, DRIVING, BREAKING, AND TURNING, COMING TO A STOP AND ON THE HIGHWAY. IN THE PAST 6 MONTHS WE HAVE SPENT MORE THAN 3800.00 FOR CAR REPAIR ON THE ML 350. IT SHUTS OFF MORE AND MORE FREQUENTLY. SO MUCH SO WE DO NOT ALLOW OUR DAUGHTER TO DRIVE UNLESS I AM THERE AND NOW NOT EVEN THEN UNTIL WE HAVE HAD IT FIXED FOR THE 4TH TIME (WE THOUGHT) AFTER CRANK SHAFT, SPARK PLUGS AND NOW ELECTRICAL WORK WE ARE AT A TOTAL LOSS. THIS ISSUE IS NOT ISOLATED BUT MERCEDES BENZ HAS HAD OTHER REPORTS OUR AND OTHERS ' NOT REPAIR / OR RECALLED BUT IT SEEMS MAJOR TO OUR FAMILY ' AS MY ONLY VEHICLE AND OTHER OWNER THAT HAVE INVESTED IN THIS MAKE.

NHTSA ID 10861000 · filed Apr 22, 2016

WITHIN THE PAST 8 MONTHS I HAVE TAKEN MY CAR TO THE DEALERSHIP FOUR TIMES WITH THE ISSUE RELATING ENGINE SHUT OFF AND CHECK ENGINE LIGHT COMES ON. I WAS TOLD THE CRANKSHAFT NEEDED TO BE REPLACED TWO TIMES AND AS OF TODAY THE PROBLEMS REMAINS. MERCEDES BENZ HAS ACKNOWLEDGED THIS IS PROBLEM IN THIS VEHICLE BUT HAS NOT ADDRESSED IT. I FEAR DRIVING THIS VEHICLE WITH MY CHILDREN IT SHUT OFF IN THE MIDDLE OF THE HIGHWAY AT ONE POINT AND THEY HAVEN'T ADDRSSED IT. I'VE SPENT $4500 TO REPAIR AND THEY CANNOT RESOLVE THE PROBLEM AND I'M NOT CERTAIN THEY KNOW HOW.

NHTSA ID 10761160 · filed Sep 3, 2015

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

Interior & seats

Reports naming seats, latches, locks, linkages and interior fittings.

3
reports

From owner reports, verbatim

FRONT DRIVERS SIDE SEAT, BURNS WHEN HEATER IS TURNED ON. BURN SMELL, BURNED SKIN OF DRIVER. HAS THERE BEEN A RECALL ON THIS. I HAVE READ OF MANY INSTANCES OF THIS SAME COMPLAINT ON THE INTERNET. MERCEDES NEEDS TO REPLACE SEAT. *TR

NHTSA ID 10621045 · filed Aug 9, 2014

I OWN A 2003 MERCEDES BENZ ML 350. WHEN TURNED ON, THE SEAT WARMER IN THIS VEHICLE IS EXTREMELY HOT, I HAVE RECEIVED A SLIGHT BURN AND I NOTICE A BURNING SMELL. THERE HAS NOT BEEN PROPERTY DAMAGE OR A FIRE (TO MY KNOWLEDGE, THERE MAY BE UNDER THE SEAT COVER) ONLY BECAUSE I HAVE TURNED THE SEAT WARMER OFF IN TIME. *TR

NHTSA ID 10289476 · filed Oct 23, 2009

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

Other / unspecified

Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.

1
report

From owner reports, verbatim

MY FAMILY OWNS A 2003 MERCEDES BENZ ML 350. A FEW WEEKS AGO, MY MOM NOTICED A BURN MARK ON THE DRIVER'S SEAT. WE BELIEVED ONE OF THE MECHANICS BURNT IT WITH A TOOL DURING THE CAR'S SERVICE. SO THIS BURN MARK WAS IGNORED. ON DEC. 13, 2008 AROUND 8:20 AM, MY MOM, WHO WAS DRIVING THE CAR, SMELLED SMOKE AND SAW SMOKE AND A SMALL FIRE FROM THE SIDE OF HER SEAT. SHE COULD NOT HAVE PULLED OVER QUICKLY BECAUSE OF TRAFFIC. SHE TURNED OFF THE SEAT WARMER. THEN SHE PUT IT OUT WITH A TOWEL SHE WAS SITTING ON, IT TOO WAS BURNT, BUT PREVENTED MY MOMS LEG FROM GETTING BURNED BY THE FIRE. THE FIRE HAS LEFT A BURNED HOLE IN THE DRIVER'S SEAT. I'VE CALLED CUSTOMER SERVICE, WHICH THEY HAVE NEVER HEARD OF A CASE LIKE MINE, NOR THE DEALERSHIP THAT I HAVE VISITED. THE CUSTOMER SERVICE AGENT DOCUMENTED MY CASE AND FAXED A COPY TO THAT DEALERSHIP. I AM GOING TO MEET THE SERVICE MANAGER WHO IS TO GIVE ME MORE INFORMATION ON WHAT NEEDS TO BE REPLACED, FIXED, AND HOW MUCH IT IS GOING TO COST. THE CAR IS NO LONGER UNDER WARRANTY. *TR

NHTSA ID 10252047 · filed Dec 16, 2008

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 .