MERCEDES-BENZ ML350 · model year

2003 MERCEDES-BENZ ML350

31 NHTSA complaints for this specific cohort.

NHTSA overall rating

Not crash-tested

New Car Assessment Program

The 2003MERCEDES-BENZML350 carries 31 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 5 fires, 2 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.

Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2003 ML350 is steering with 9 filings, followed by seats:front assembly:seat heater/cooler (4) and electrical system (4). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.

NHTSA currently has 15 investigation files overlapping the 2003 ML350. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.

31
Complaints
0
Crashes
5
Fires
2
Injuries
0
Deaths

Total Complaints

31 filings

Crashes Reported

0 reports

Source

NHTSA ODI

Federal complaints database

Complaints vs. fleet median (215)

At or below the fleet median complaint volume.

Complaints by Component

ComponentCount
STEERING9
SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER4
ELECTRICAL SYSTEM4
SEATS3
ENGINE AND ENGINE COOLING:ENGINE2
ENGINE AND ENGINE COOLING2
ENGINE2
UNKNOWN OR OTHER2
STEERING:HYDRAULIC POWER ASSIST SYSTEM1
EQUIPMENT1
STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS1

Recent Complaints

20231222UNKNOWN OR OTHER

The Floor Mats I received for my vehicle covered a portion of my accelerator pedal and would when up into the back above the pedal and to the right of it and would get caught and force my accelerator pedal to stay down. I told the company of their design flaw, and they said would not do anything about it. If I wanted to send it back it would cost more than the pads were worth. I paid $189.95. I got PayPal involved and if I paid the shipping cost to send them back they would rebate me the money that I paid. That's only if the mats are in perfect condition when they receive them. So it cost hours of BS and $60 so I get back at least $129. But with that said I felt you should know that they are selling and sending things not made for the cars they promise they will be for.

20181226STEERING

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.

Mileage: 175,000

20160609STEERING

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?

Mileage: 136,690

20160601STEERING

TL* THE CONTACT OWNS A 2003 MERCEDES BENZ ML350. THE CONTACT STATED THAT THE STEERING WHEEL SEIZED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO REPLACED THE POWER STEERING PUMP ASSEMBLY TWICE BUT THE FAILURE RECURRED. THE STEERING WHEEL WAS EXTREMELY TIGHT AND THE VEHICLE WAS TAKEN BACK TO THE INDEPENDENT MECHANIC. THE APPROXIMATE FAILURE MILEAGE WAS 99,000.

Mileage: 99,000

20160422ELECTRICAL SYSTEM

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.

20160422ENGINE

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.

20150903ENGINE

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.

Mileage: 97,000

20150903ELECTRICAL SYSTEM

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.

Mileage: 97,000

20150903UNKNOWN OR OTHER

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.

Mileage: 97,000

20141121STEERING

I HAVE A 2003 ML350 SUV. I BOUGHT MY CAR USED. I WAS WONDERING IF THERE WERE ANY RECALLS REGARDING STEERING. I HAVE REPLACED ONE RACK AND PIN WHICH I BELIEVE WAS USED. NOW I AM IN NEED OF ANOTHER ONE. *TR

20140809SEATS

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

Mileage: 40,000

20131121STEERING

BOUGHT THIS CAR ON 01/2008 AFTER A MONTH OR TWO I STARTED TO FILL RESERVOIR WITH POWER STEERING FLUID AS NEEDED WHICH IS OFTEN. I CALLED MERCEDES BENZ REGARDING THE RECALL BUT DENIED MY REQUEST. THANKS *TR

Mileage: 57,500

20130505STEERING

I WAS BACKING OUT OF MY GARAGE, WHEN I HEARD A NOISE COMING FROM THE LEFT FRONT ENGINE. I IMMEDIATELY PUT THE SUV BACK INTO THE GARAGE AND PARKED IT. I SAW AN OIL LEAK WHERE IT HAD BEEN PARKED. SINCE THEN, I HAVE BEEN DRIVING MY TOYOTA, AND LEFT THE MERCEDES PARKED IN THE GARAGE. THE LARGE OIL LEAK CONCERNED ME.I SPOKE TO A MERCEDES MECHANIC AND DESCRIBED WHAT I HAD HEARD, AND HE SAID IT WAS MOST LIKELY A STEERING PROBLEM. I CHECKED ONLINE AND NOTICED THERE ARE RECALLS FOR THE STEERING HOSE AND CLAMP FOR ML 350 MODELS YEARS 2003 +. IN WHICH THE STEERING WHEEL OIL LEAKS OUT. I WOULD LIKE TO KNOW IF THE RECALL IS STILL VALID? DOES THE MERCEDES DEALER STILL HAVE TO REPLACE THE HOSE AND CLAMP? WHAT IF THEY SAY THEY DON'T HAVE TO REPAIR OR REPLACE THESE PARTS, THEN WHAT DO I SAY OR DO? *TR

Mileage: 74,072

20091023FireSEATS

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

20090424STEERING

RE: NHTSA SAFETY RECALL #2003-040005 VEHICLE INFORMATION: 2003 MERCEDES ML350 ODI#10261473 MY ML350 ONLY 37,000 MILES THE NOISE (STEERING RACK PROBLEM) HAD BEEN APPARENT SINCE 29,000 MILES. I SCHEDULED WITH JOHN SHEPARD (SERVICE MANAGER OF PHIL SMART MERCEDES SERVICE CENTER, 2025 AIRPORT WAY SOUTH SEATTLE, WASHINGTON 98134 PHONE: 206.340.5959) TO INSPECT THE PROBLEMS, FOUND THAT 'VERIFIED NOISE, INSTALLED ELECTRONIC EARS, TO ISOLATE NOISE FOUND NOISE FROM INSIDE OF STEERING PACK ASSEMBLY,' AND INSPECTION FEE WAS $152.60, SUGGESTING REPAIR WAS TO REPLACING THE GEARING (RACK) AND COST ESTIMATED $2,252.02. BY FEBRUARY, I RECEIVED A NOTICE OF SAFETY RECALL FROM ALAN MCLAREN (V.P. CUSTOMER SERVICE OF MERCEDES-BENZ USA, LLC; ONE MERCEDES DRIVE, PO BOX 350 MONTVALE, NJ 07645, TEL: 1-800-367-6372, FAX: 201-476-6211), THEN I SEND MY VEHICLE TO JOHN SHEPARD (PHIL SMART MERCEDES SERVICE CENTER AT SEATTLE), WAS TOLD THAT THIS RECALL HAD BEEN RESOLVED, NO NEED TO REPAIR, NO REIMBURSEMENT FOR T

Mileage: 29,000

20090405ENGINE AND ENGINE COOLING

IN REGARDING TO SAFETY RECALL #2003-040005: 1. HOSE CLAMP USED TO SECURE THE POWER STEERING FLUID COOLING HOSE TO THE POWER STEERING FLUID COOLER FAILED TO PROVIDE SUFFICIENT CLAMPING FORCE FOR THIS CONNECTION. 2. ITS CONSEQUENCES: A. POWER STEERING PUMP FAILING B. VALVE COVERS LEAKING 3. MERCEDES-BENZ OF SOUTH CHARLOTTE REPLACED POWER STEERING PUMP, REPLACED VALVE COVER GASKETS. TOTAL CHARGES WERE $1,544.62 ($775.40 FOR PARTS, THE REST WAS FOR LABOR). SAFETY RECALL #2003-040005 LETTER STATES THAT "IF YOU HAVE PAID TO HAVE THIS RECALL CONDITION CORRECTED PRIOR TO THIS NOTICE YOU MAY BE ELIGIBLE TO RECEIVE REIMBURSEMENT". I PRESENTED THIS CASE TO MERCEDES-BENZ OF SOUTH CHARLOTTE BUT THEY DENIED MY REQUEST FOR REIMBURSEMENT. I STRONGLY BELIEVE THAT I SHOULD RECEIVE THE REIMBURSEMENT. I HAVE ALL THE DOCUMENT TO SUPPORT THIS CASE. PLEASE HELP US TO INVESTIGATE THIS MATTER. THANK YOU IN ADVANCE FOR YOUR ATTENTION AND TIME. *TR

Mileage: 49,492

20090405STEERING

IN REGARDING TO SAFETY RECALL #2003-040005: 1. HOSE CLAMP USED TO SECURE THE POWER STEERING FLUID COOLING HOSE TO THE POWER STEERING FLUID COOLER FAILED TO PROVIDE SUFFICIENT CLAMPING FORCE FOR THIS CONNECTION. 2. ITS CONSEQUENCES: A. POWER STEERING PUMP FAILING B. VALVE COVERS LEAKING 3. MERCEDES-BENZ OF SOUTH CHARLOTTE REPLACED POWER STEERING PUMP, REPLACED VALVE COVER GASKETS. TOTAL CHARGES WERE $1,544.62 ($775.40 FOR PARTS, THE REST WAS FOR LABOR). SAFETY RECALL #2003-040005 LETTER STATES THAT "IF YOU HAVE PAID TO HAVE THIS RECALL CONDITION CORRECTED PRIOR TO THIS NOTICE YOU MAY BE ELIGIBLE TO RECEIVE REIMBURSEMENT". I PRESENTED THIS CASE TO MERCEDES-BENZ OF SOUTH CHARLOTTE BUT THEY DENIED MY REQUEST FOR REIMBURSEMENT. I STRONGLY BELIEVE THAT I SHOULD RECEIVE THE REIMBURSEMENT. I HAVE ALL THE DOCUMENT TO SUPPORT THIS CASE. PLEASE HELP US TO INVESTIGATE THIS MATTER. THANK YOU IN ADVANCE FOR YOUR ATTENTION AND TIME. *TR

Mileage: 49,492

20090310STEERING

MY 2003 MERCEDES ML350 ONLY 37,000 MILES THE NOISE (STEERING RACK PROBLEM) HAD BEEN APPARENT SINCE 29,000 MILES. I SCHEDULED WITH JOHN SHEPARD (SERVICE MANAGER OF PHIL SMART MERCEDES SERVICE CENTER AT SEATTLE, RICHARDHULL@PHILSMART.COM, 2025 AIRPORT WAY SOUTH SEATTLE, WASHINGTON 98134 PHONE: 206.340.5959, FAX: 206.654.7119) TO INSPECT THE PROBLEMS, FOUND THAT 'VERIFIED NOISE, INSTALLED ELECTRONIC EARS, TO ISOLATE NOISE FOUND NOISE FROM INSIDE OF STEERING PACK ASSEMBLY,' AND INSPECTION FEE WAS $152.60, SUGGESTING REPAIR WAS TO REPLACING THE GEARING (RACK) AND COST ESTIMATED $2,252.02, AND JOHN SHEPARD TOLD ME THAT 'AS I JUST WANT TO MAKE SURE THAT YOU WERE AWARE THAT AN OFFER OF 50% PARTS AND LABOR IS ON THE TABLE? I HAVE ALREADY COMMITTED TO THAT, SO IF YOU ARE INTERESTED IN GETTING THIS RESOLVED TODAY, THE OFFER STILL STANDS. THE REPAIR WOULD BE APPROXIMATELY $1000.00 TO REPLACE THE RACK AND IT WOULD CARRY A ONE YEAR UNLIMITED MILE WARRANTY. I TRULY BELIEVE THIS IS A FAIR OFFER AND

Mileage: 29,000

20090221ELECTRICAL SYSTEM

MY M-350 HAD NO POWER. THE HARNESS CABLE (163-540-28-32) LOCATED BEHIND AND AGAINST THE BATTERY HAD COMPLETELY BEEN DESTROYED BY THE BATTERY ACID ENVIRONMENT. THE CABLE SUPPLIES THE OPERATIONAL POWER TO THE ELECTRICAL FUNCTIONS OF THE AUTO. IF I HAD BEEN DRIVING WHEN THIS COMPLETE FAILURE OCCURRED I COULD HAVE BEEN KILLED OR COULD HAVE KILLED SOMEONE ELSE. ALL SYSTEMS IN THE CAR WERE TOTALLY NON-FUNCTIONAL. NO SHIELDING OR PREVENTION OF DAMAGE TO THE CABLE WAS ENGINEERED INTO THE FACTORY INSTALLATION OF THIS CABLE. THE BATTERY WAS THE ORIGINAL INSTALLATION AND NO MAINTENANCE ACTIVITY HAD OCCURRED IN THAT AREA OF THE CAR SINCE IT WAS MANUFACTURED. I HAVE SEVERAL PHOTO OF THE CABLE THAT SHOWS THIS CONDITION. I WAS CHARGED $2,483.65 BY JACKIE COOPER IMPORTS OF TULSA, LLC ( THE TULSA MERCEDES-BENZ DEALER) TO REPLACE THE CABLE. I ALSO WAS CHARGED APPROXIMATELY $125.00 FOR THE TOWING OF THE CAR (SUV) TO THE DEALER FOR THESE REPAIRS. FOR A WORLD CLASS SAFETY AWARD WINNER CAR, TO BE E

Mileage: 77,500

20090121STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS

TL*THE CONTACT OWNS A 2003 MERCEDES BENZ ML350. THE CONTACT NOTICED POWER STEERING FLUID UNDERNEATH THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER AND THEY INSTALLED A NEW HOSE CLAMP AT THE COST OF $259. SEVERAL MONTHS LATER, THE STEERING COLUMN BECAME DIFFICULT TO TURN. SHE THEN RECEIVED A RECALL NOTICE FOR NHTSA CAMPAIGN ID NUMBER 08V465000 (STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS) AND IMMEDIATELY CALLED THE DEALER. UPON INSPECTION, A TECHNICIAN STATED THAT THE POWER STEERING PUMP WAS DAMAGED AND NEEDED TO BE REPLACED AT THE COST OF $1,200. THE VEHICLE HAS NOT BEEN REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 64,000. UPDATED 3/5/09 *CN UPDATED 03/10/09.*JB

Mileage: 64,000

Compare 2003MERCEDES-BENZML350 to Similar Vehicles

NHTSA Investigations

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Frequently Asked Questions

How many complaints does the 2003 MERCEDES-BENZ ML350 have?
The 2003 MERCEDES-BENZ ML350 has 31 NHTSA complaints, 0 crashes, 5 fires, 2 injuries, and 0 deaths reported.
What are the most common problems with the 2003 MERCEDES-BENZ ML350?
The most-complained component for the 2003 MERCEDES-BENZ ML350 is STEERING with 9 complaints. Other frequently reported areas include SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER and ELECTRICAL SYSTEM.
Is the 2003 MERCEDES-BENZ ML350 safe to buy?
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.

Vehicle Safety Guides

Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.