RoadVitals

2015 Mercedes-Benz ML250 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.
10
Latest Jan 17, 2026
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 2015 Mercedes-Benz ML250, 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

  • Engine436.4%
  • Body & structure19.1%
  • Driver assistance19.1%
  • Electrical19.1%
  • Fuel system19.1%
  • Steering19.1%
  • Airbags19.1%
  • Visibility19.1%

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

Engine

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

4
reports

From owner reports, verbatim

The Adblue blue malfunctioned and the engine oil cooling is leaking. Also the axle is leaking. This was a previous recall on this specific vehicle and it continues to be an issue

NHTSA ID 11482258 · filed Aug 31, 2022

TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ ML250. THE CONTACT STATED THAT THE ENGINE DEVELOPED A DIESEL FUEL LEAK OVER THE MOTOR, WHICH RAN ACROSS THE ENGINE. THE MOTOR WAS SOAKED WITH DIESEL FUEL. ALSO, WHILE DRIVING, THERE WAS AN ODOR OF FUEL INSIDE THE VEHICLE. THE CONTACT DROVE HOME AND CALLED VALLEY IMPORT (402 40TH ST S, FARGO, ND 58103, (888) 929-9843) TO SCHEDULE AN APPOINTMENT. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE TECHNICIAN FOUND DIESEL FUEL ALL OVER THE ENGINE AND THE PAN UNDER THE ENGINE WAS FILLED WITH FUEL. THE CONTACT STATED THAT THE FUEL SOAKED UP ONE OF THE ENGINE MOUNTS. THE VEHICLE WAS IN THE PROCESS OF BEING REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 30,000.

NHTSA ID 11267649 · filed Oct 10, 2019

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

Body & structure

Reports naming the vehicle structure, frame, body panels, doors, hood and trim.

1
report

From owner reports, verbatim

Rear subframe rusted from the inside out causing structural failure. This matches the defect in Campaign #2023020002 for other Mercedes models."

NHTSA ID 11711610 · filed Jan 17, 2026

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

TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ ML250. THE CONTACT STATED THAT THE COLLISION PREVENTION ASSISTANCE FEATURE FAILED TO FUNCTION PROPERLY AND THE VEHICLE FAILED TO STOP SEVERAL TIMES. THE CONTACT APPLIED EXTREME FORCE TO THE BRAKE PEDAL AND ALMOST EXPERIENCED A CRASH DUE TO AN INTERNAL OR ELECTRICAL FAILURE. THE DEALER (MERCEDES-BENZ OF ANAHEIM, 5395 E LA PALMA AVE, ANAHEIM HILLS, CA 92807, (714) 777-1900), WHO SOLD THE CONTACT THE VEHICLE, WAS UNABLE TO REPLICATE AND DIAGNOSE THE FAILURE. THE DEALER DID NOT PERFORM A TEST DRIVE AND INDICATED THAT THE FEATURE COULD NOT BE REPLICATED. THE MANUFACTURER WAS NOTIFIED OF THE SAFETY CONCERN AND THE CONTACT WAS WAITING TO DETERMINE IF THEY COULD PROVIDE FURTHER TESTING TO DETERMINE IF THE COLLISION PREVENTION ASSISTANCE FEATURE WAS FUNCTIONING. THE CONTACT WAS UNCERTAIN IF THE MANUFACTURER COULD PREVENT THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 20,000.

NHTSA ID 11015161 · filed Aug 14, 2017

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.

1
report

From owner reports, verbatim

DRIVING VEHICLE ALL DAY NO PROBLEMS .IT JUST TURNED 20,000 MILES. WAS DRIVING ON ROAD WHEN VEHICLE STARTED SURGING, LIKE OUT OF FUEL, WENT DOWN ROAD A LITTLE FURTHER AND IT HAPPENED AGAIN .THIS TIME I SMELLED STRONG DIESEL FUEL FUMES. SMOKE STARTING COMING OUT FROM UNDER HOOD. . I PULLED OFF ROAD AND SHUT CAR OFF. I OPENED HOOD LOTS OF SMOKE AND ENGINE COMPARTMENT COMPLETELY SOAKED WITH DIESEL FUEL ! HAD TO CALL ROADSIDE ASSISTANCE. GOT TOWED IN TO MERCEDES BENZ OF NORTH HAVEN CT. SERVICE DEPT TODAY SAYS LOOKS LIKE A RODENT CHEWED SOMETHING IN YOUR ENGINE COMPARTMENT. AND THAT CAUSED YOUR FUEL LEAK. THEREFORE WE ARE NOT COVERING ANYTHING UNDER WARRANTY. IT WILL COST ABOUT $4500 TO FIX .THIS IS RIDICULOUS AND VEHICLE IS UNDER FULL WARRANTY AND EXTENDED WARRANTY ! I WAS DRIVING THIS CAR ALL DAY .IT BROKE DOWN AT 2:30 IN THE AFTERNOON..MERCEDES BENZ IS LUCKY THE CAR DIDN'T CATCH FIRER AND BURN TO THE GROUND. MAURO MOTORS NEEDS TO MAKE GOOD ON THE WARRANTY AND FIX AT NO CHARGE. I HAVE A AUTOMOTIVE BACKGROUND AND JUST CANT BUY WHAT THEY ARE SAYING THE CAUSE IS FROM..WE OWN 2 MB VEHICLES AND THIS IS UNHEARD OF. WE WILL CONTACT OUR LAWYER ABOUT THIS ISSUE IF NOT RESOLVED. REGARDS, [XXX] [XXX] H: [XXX] C:[XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).'*JB

NHTSA ID 10970118 · filed Apr 3, 2017

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.

1
report

From owner reports, verbatim

DRIVING VEHICLE ALL DAY NO PROBLEMS .IT JUST TURNED 20,000 MILES. WAS DRIVING ON ROAD WHEN VEHICLE STARTED SURGING, LIKE OUT OF FUEL, WENT DOWN ROAD A LITTLE FURTHER AND IT HAPPENED AGAIN .THIS TIME I SMELLED STRONG DIESEL FUEL FUMES. SMOKE STARTING COMING OUT FROM UNDER HOOD. . I PULLED OFF ROAD AND SHUT CAR OFF. I OPENED HOOD LOTS OF SMOKE AND ENGINE COMPARTMENT COMPLETELY SOAKED WITH DIESEL FUEL ! HAD TO CALL ROADSIDE ASSISTANCE. GOT TOWED IN TO MERCEDES BENZ OF NORTH HAVEN CT. SERVICE DEPT TODAY SAYS LOOKS LIKE A RODENT CHEWED SOMETHING IN YOUR ENGINE COMPARTMENT. AND THAT CAUSED YOUR FUEL LEAK. THEREFORE WE ARE NOT COVERING ANYTHING UNDER WARRANTY. IT WILL COST ABOUT $4500 TO FIX .THIS IS RIDICULOUS AND VEHICLE IS UNDER FULL WARRANTY AND EXTENDED WARRANTY ! I WAS DRIVING THIS CAR ALL DAY .IT BROKE DOWN AT 2:30 IN THE AFTERNOON..MERCEDES BENZ IS LUCKY THE CAR DIDN'T CATCH FIRER AND BURN TO THE GROUND. MAURO MOTORS NEEDS TO MAKE GOOD ON THE WARRANTY AND FIX AT NO CHARGE. I HAVE A AUTOMOTIVE BACKGROUND AND JUST CANT BUY WHAT THEY ARE SAYING THE CAUSE IS FROM..WE OWN 2 MB VEHICLES AND THIS IS UNHEARD OF. WE WILL CONTACT OUR LAWYER ABOUT THIS ISSUE IF NOT RESOLVED. REGARDS, [XXX] [XXX] H: [XXX] C:[XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).'*JB

NHTSA ID 10970118 · filed Apr 3, 2017

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

Steering

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

1
report

From owner reports, verbatim

TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ ML250. THE CONTACT WAS TOWING AN UNKNOWN TRAVEL TRAILER WHEN THE VEHICLE BEGAN TO DRIFT TO THE RIGHT AND THE STEERING WHEEL BECAME DIFFICULT TO TURN. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE CONTACT STATED HE WAS UNABLE TO CONTROL THE VEHICLE AND DROVE INTO A DITCH. THE CONTACT STATED ALL 4 AIR BAGS DEPLOYED. THE CONTACT STATED HIS WIFE SUSTAINED A BRUISE FROM THE SEAT BELT BUT DID NOT SEEK ANY MEDICINAL ATTENTION. THE CONTACT STATED THE LOCAL FIRE DEPARTMENT AND TOW COMPANY WAS ABLE TO TAKE THE VEHICLE OUT OF THE DITCH. A POLICE REPORT WAS FILED. THE CONTACT STATED THE VEHICLE WAS DRIVABLE. A DEALER WAS NOT CONTACTED. THE VEHICLE HAD NOT BEEN DIAGNOSED OR REPAIRED AS OF YET. THE MANUFACTURER HAD BEEN INFORMED OF FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 78,000.

NHTSA ID 11340376 · filed Jul 20, 2020

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

Airbags

Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.

1
report

From owner reports, verbatim

On 8/15/23 on my parking explode air bag , completely make me blind.Nader air bag push my legs from brake and Car still was driving and stop a the wall, I was completely blind, destroyed my car ,Pain my legs , my arms my head incrediblo,my body is all blue, Thanks to God I am still life. Always I take care my car and I was in Mercedes -Benz dealer in Fletcher N C check my car before I wil drive back home to Florida he told me everything is good and safe .to drive .I need help .All my life I drive Mercedes-Benz .Mercedes mechanic must check car before release to customer to drive ,Please help me with nader car.

NHTSA ID 11539120 · filed Aug 17, 2023

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

TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ ML250. ON TWO SEPARATE OCCASIONS, WHILE DRIVING, THE CONTACT HEARD A POP SOUND. LATER THAT NIGHT, THE CONTACT ENTERED THE VEHICLE AND THE MOON ROOF EXPLODED. THE VEHICLE WAS TAKEN TO TYSINGER MOTOR CO (2712 MAGRUDER BLVD SUITE B, HAMPTON, VA 23666, (757) 865-8000) WHERE NO DIAGNOSTIC FAILURE CODES WERE FOUND AND THE FAILURE COULD NOT BE DUPLICATED. THE MOON ROOF WAS REPLACED; HOWEVER, THE CONTACT HEARD THE POP NOISE AGAIN WHILE DRIVING. THE MOON ROOF INADVERTENTLY SHATTERED AGAIN AND ENTERED THE VEHICLE. THERE WERE NO INJURIES. THE VEHICLE WAS TAKEN BACK TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE MOON ROOF SHATTERED DUE TO TRAUMA. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURES. THE APPROXIMATE FAILURE MILEAGE WAS 55,000. *TT *TR

NHTSA ID 11075957 · filed Mar 2, 2018

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 .