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2004 Mercedes Benz ML350

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2004 Mercedes Benz ML350 do not stand out strongly from the model-year median of 51.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

28 reports with mileage · 7 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Steering. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 5 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

3 crash reports3 fire reports3 injury reports

What owners actually said

35 reports
67,000 miles · Jun 24, 2015
Fuel/propulsion System

CAR SUDDENLY DEVELOPED EXTREME GASOLINE ODOR AFTER A BRIEF 20 MILE TRIP. CURSORY CHECK DID NOT IDENTIFY SOURCE. UPON RETURN TRIP, SAME EXTREME SICKENING ODOR RETURNED. UPON PULLING INTO GARAGE GASOLINE WAS VISIBLY POURING FROM UNDERNEATH THE CAR AND POOLING ON GROUND. IT LOOKED TO BE COMING DIRECTLY FROM GAS TANK AREA BUT COULD…

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CAR SUDDENLY DEVELOPED EXTREME GASOLINE ODOR AFTER A BRIEF 20 MILE TRIP. CURSORY CHECK DID NOT IDENTIFY SOURCE. UPON RETURN TRIP, SAME EXTREME SICKENING ODOR RETURNED. UPON PULLING INTO GARAGE GASOLINE WAS VISIBLY POURING FROM UNDERNEATH THE CAR AND POOLING ON GROUND. IT LOOKED TO BE COMING DIRECTLY FROM GAS TANK AREA BUT COULD NOT DETERMINE MAIN SOURCE AS IT WAS SPRAYED THROUGHOUT THE UNDERCARRIAGE. ASIDE FROM THE NAUSEA, THIS CLEARLY POSED A SIGNIFICANT FIRE DANGER AND WAS IMMEDIATELY TRANSPORTED TO THE DEALER AWAITING REPAIR COSTS NOW. THERE HAVE BEEN NO OTHER INCIDENTS OR EXTERNAL REASONS THAT MIGHT HAVE LED TO THIS (SUCH AS RUNNING OVER SOMETHING OR HITTING SOMETHING IN THE ROAD). AFTER DOING RESEARCH THIS APPEARS TO BE THE SAME TYPE OF PROBLEM THAT HAS BEEN, AND CONTINUES TO BE EXPERIENCED BY OTHER OWNERS DUE TO A MANUFACTURING DEFECT.

NHTSA ODI #10730246

100,000 miles · Apr 14, 2015
Steering

TL* THE CONTACT OWNS A 2004 MERCEDES BENZ ML350. WHILE DRIVING AT AN UNKNOWN SPEED, THE CONTACT HEARD A NOISE COMING FROM THE FRONT OF THE VEHICLE. THE VEHICLE WAS TAKEN TO A DEALER. THE TECHNICIAN DIAGNOSED THAT THE HOSE CLAMP NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE.…

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TL* THE CONTACT OWNS A 2004 MERCEDES BENZ ML350. WHILE DRIVING AT AN UNKNOWN SPEED, THE CONTACT HEARD A NOISE COMING FROM THE FRONT OF THE VEHICLE. THE VEHICLE WAS TAKEN TO A DEALER. THE TECHNICIAN DIAGNOSED THAT THE HOSE CLAMP NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE CONTACT WAS AWARE OF NHTSA CAMPAIGN NUMBER: 08V465000 (STEERING), BUT THE VIN WAS NOT INCLUDED. THE FAILURE MILEAGE WAS 100,000. UPDATED 06/13/17*LJ THE CONSUMER REQUESTED TO BE REIMBURSED FOR THE LEAKY STEERING FLUID REPAIRS. THE VEHICLE WAS REPAIRED USING THE SAME REQUIREMENTS AS THE RECALL, BUT WAS NOT REPAIRED UNDER THE RECALL. *JS

NHTSA ODI #10705685

117,000 miles · Feb 19, 2015
EngineFire

TL* THE CONTACT OWNS A 2004 MERCEDES BENZ ML350. THE CONTACT STATED THAT WHILE THE VEHICLE WAS IN PARK, THE CONTACT NOTICED FIRE COMING FROM THE ENGINE COMPARTMENT. THE FIRE DEPARTMENT EXTINGUISHED THE FIRE. A POLICE REPORT WAS FILED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. TH…

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TL* THE CONTACT OWNS A 2004 MERCEDES BENZ ML350. THE CONTACT STATED THAT WHILE THE VEHICLE WAS IN PARK, THE CONTACT NOTICED FIRE COMING FROM THE ENGINE COMPARTMENT. THE FIRE DEPARTMENT EXTINGUISHED THE FIRE. A POLICE REPORT WAS FILED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 117,000.

NHTSA ODI #10684301

129,251 miles · Oct 1, 2014
Air BagsCrashInjury

SIDE-SWIPED ON THE FREEWAY. WITNESS STATE THE VEHICLE ROLLED 4-5 TIMES. NO FRONT OR SIDE AIRBAGS DEPLOYED. *TR

NHTSA ODI #10640376

50,000 miles · Jul 17, 2013
Service Brakes

WHILE DRIVING ON A LOCAL STREET, I NOTICED THAT BRAKES HAD STOPPED WORKING. AFTER INVESTIGATION, I NOTICED THAT A CORRODED BRAKE LINE WAS LEAKING BRAKE FLUID. I HAD CONTACTED MERCEDES BENZ CUSTOMER SERVICE. I WAS TOLD TO CONTACT A DEALER, WHO CONFIRMED THAT ALL BRAKE LINES ARE CORRODING IN THE AREA CLOSE TO THE ENGINE COMPARTMEN…

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WHILE DRIVING ON A LOCAL STREET, I NOTICED THAT BRAKES HAD STOPPED WORKING. AFTER INVESTIGATION, I NOTICED THAT A CORRODED BRAKE LINE WAS LEAKING BRAKE FLUID. I HAD CONTACTED MERCEDES BENZ CUSTOMER SERVICE. I WAS TOLD TO CONTACT A DEALER, WHO CONFIRMED THAT ALL BRAKE LINES ARE CORRODING IN THE AREA CLOSE TO THE ENGINE COMPARTMENT. I WAS TOLD THAT THIS IS NOT A SAFETY ISSUE SUBJECT TO A RECALL. I WAS FURTHER TOLD THAT IT IS NORMAL FOR BRAKE LINES TO CORRODE AND LEAK. I HAVE NOT NOTICED CORROSION ON ANY OTHER PART OF THE CAR, EXCEPT THE BRAKE LINES. *TR

NHTSA ODI #10525310

90,000 miles · Apr 20, 2012
Steering

TL* THE CONTACT OWNS A 2004 MERCEDES ML350. WHILE PARKED, THE CONTACT NOTICED POWER STEERING FLUID WAS LEAKING FROM THE VEHICLE. THE CONTACT ALSO STATED THAT WHILE DRIVING APPROXIMATELY 30 MPH, THE STEERING WHEEL BECAME DIFFICULT TO MANEUVER. THE FAILURE OCCURRED AT DIFFERENT SPEEDS. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECH…

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TL* THE CONTACT OWNS A 2004 MERCEDES ML350. WHILE PARKED, THE CONTACT NOTICED POWER STEERING FLUID WAS LEAKING FROM THE VEHICLE. THE CONTACT ALSO STATED THAT WHILE DRIVING APPROXIMATELY 30 MPH, THE STEERING WHEEL BECAME DIFFICULT TO MANEUVER. THE FAILURE OCCURRED AT DIFFERENT SPEEDS. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN STATED THAT A DIAGNOSTIC TEST WAS NECESSARY TO LOCATE THE CAUSE OF THE FAILURE. THE CONTACT DID NOT HAVE THE FAILURE DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 90,000.

NHTSA ODI #10455851

55,000 miles · Jan 6, 2012
Air BagsCrashInjury

TL* THE CONTACT OWNED A 2004 MERCEDES BENZ ML350. THE CONTACT STATED THAT THE DRIVER WAS TRAVELING APPROXIMATELY 15 MPH WHEN SHE CRASHED INTO ANOTHER VEHICLE. THE AIR BAGS DID NOT DEPLOY. THE VEHICLE WAS DESTROYED AND THE DRIVER SUFFERED INJURIES. THE VEHICLE WAS TOWED TO A TOWING YARD AND THE FAILURE WAS NOT DIAGNOSED. THE MANU…

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TL* THE CONTACT OWNED A 2004 MERCEDES BENZ ML350. THE CONTACT STATED THAT THE DRIVER WAS TRAVELING APPROXIMATELY 15 MPH WHEN SHE CRASHED INTO ANOTHER VEHICLE. THE AIR BAGS DID NOT DEPLOY. THE VEHICLE WAS DESTROYED AND THE DRIVER SUFFERED INJURIES. THE VEHICLE WAS TOWED TO A TOWING YARD AND THE FAILURE WAS NOT DIAGNOSED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE AND THE CURRENT MILEAGES WERE 55,000. UPDATED 01/27/12 *BF

NHTSA ODI #10442681

65,500 miles · May 27, 2010
SeatsFire

MAY 2010 I HAVE PROBLEM IN MY 2004 ML350. MY WIFE TURNED ON THE DRIVERS SIDE SEAT HEATER TO THE HIGH SETTING. WITHIN A SHORT TIME THE HEATER HAD BURNED THROUGH THE LEATHER SEAT. THE SEAT CAUGHT FIRE IN A SMALL SPOT ( LIKE A CIGARETTE BURN) WHILE MY WIFE WAS DRIVING AND ALMOST CAUSED HER TO HAVE AN ACCIDENT. THIS ISSUE IS REPEAT…

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MAY 2010 I HAVE PROBLEM IN MY 2004 ML350. MY WIFE TURNED ON THE DRIVERS SIDE SEAT HEATER TO THE HIGH SETTING. WITHIN A SHORT TIME THE HEATER HAD BURNED THROUGH THE LEATHER SEAT. THE SEAT CAUGHT FIRE IN A SMALL SPOT ( LIKE A CIGARETTE BURN) WHILE MY WIFE WAS DRIVING AND ALMOST CAUSED HER TO HAVE AN ACCIDENT. THIS ISSUE IS REPEATED SEVERAL TIMES IN ONLINE SEARCHES I DID FOR THE 03 AND 04 ML350. I SPOKE TO A BENZ ROADSIDE ASSISTANCE MECHANIC AND HE SAID HE HAS SEEN THIS HAPPEN BEFORE AND THAT IT IS A SHORT IN THE SEAT WIRING. HE SAID HE WOULD LOOK INTO IT BUT I HAVE NOT HEARD BACK FROM HIM. I AM GOING TO CALL THE DEALER TODAY. *TR

NHTSA ODI #10332535

104,000 miles · Jan 20, 2010
Electrical System

WHILE DRIVING 2004 MERCEDES BENZ ML350 ON PUBLIC STREET THE ENGINE LOST ALL POWER WHILE MOVING AT 30 - 35 MPH. LOST BOTH POWER STEERING CONTROL AND POWER BRAKING ABILITY AS A RESULT. WAS ABLE TO AVOID COLLISIONS AND COASTED INTO AN OFF STREET AREA SAFELY. UNDER OTHER CIRCUMSTANCES ( HIGH SPEED FREEWAY TRAVEL ) ACCIDENT MAY HAVE …

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WHILE DRIVING 2004 MERCEDES BENZ ML350 ON PUBLIC STREET THE ENGINE LOST ALL POWER WHILE MOVING AT 30 - 35 MPH. LOST BOTH POWER STEERING CONTROL AND POWER BRAKING ABILITY AS A RESULT. WAS ABLE TO AVOID COLLISIONS AND COASTED INTO AN OFF STREET AREA SAFELY. UNDER OTHER CIRCUMSTANCES ( HIGH SPEED FREEWAY TRAVEL ) ACCIDENT MAY HAVE BEEN CERTAIN. CAUSE DETERMINED TO BE FAULTY CRANK SENSOR. THIS SEEMS TO BE COMMON PROBLEM WITH THIS VINTAGE VEHICLE AND CAME AS NO SURPRISE TO MY MECHANIC. THIS IS ONE OF THE MORE FRIGHTENING DRIVING EXPERIENCES THAT I'VE HAD AND AM GRATEFUL THAT IT DID NOT OCCUR WHEN MY SPOUSE WAS DRIVING THIS VEHICLE; SHE WOULD HAVE HAD NO IDEA WHAT WAS HAPPENING OR WHAT TO DO. PLEASE LOOK INTO THIS PROBLEM. IF IT DOESN'T FALL UNDER THE CLASSIFICATION OF A TRANSPORTATION SAFETY ISSUE THEN THE DOT NEEDS TO REEVALUATE WHAT ITS MISSION IS. *TR

NHTSA ODI #10300437

61,500 miles · Sep 12, 2009
Steering

POWER STEERING FLUID LEAK, RESULTING IN OCCASIONAL HARD STEERING. THIS ALSO OCCURRED IN JANUARY AND APRIL. WE CALLED THE DEALER AND MERCEDES USA AND WERE TOLD THE VEHICLE WAS NOT PART OF THE SEPTEMBER 2008 RECALL. *TR

NHTSA ODI #10283743

Official recalls

0

No recalls in this snapshot.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.