Mercedes Benz ML350 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
499 owner complaints analyzed
3 distinct recall campaigns
67,000 mi median reported failure mileage
Scope: 2001 to 2009 model years. Data snapshot: . 377 complaints include usable failure mileage.
Most common problems
Electrical System is the most frequently named component, appearing in 83 of 499 complaints (16.6%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Steering behavior | 84 | 16.8% |
| Braking behavior | 77 | 15.4% |
| Electrical and battery issues | 52 | 10.4% |
| Transmission and shifting | 50 | 10.0% |
| Engine operation | 33 | 6.6% |
| Fuel system concerns | 9 | 1.8% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Electrical System | 83 |
| Steering | 66 |
| Air Bags | 59 |
| Power Train | 53 |
| Seats | 50 |
| Engine | 49 |
| Service Brakes | 26 |
| Engine And Engine Cooling | 25 |
Electrical System: 83; Steering: 66; Air Bags: 59; Power Train: 53; Seats: 50; Engine: 49; Service Brakes: 26; Engine And Engine Cooling: 25
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 42 |
| 25,000 to 49,999 | 63 |
| 50,000 to 74,999 | 107 |
| 75,000 to 99,999 | 78 |
| 100,000 to 149,999 | 69 |
| 150,000 and above | 18 |
Under 25,000: 42; 25,000 to 49,999: 63; 50,000 to 74,999: 107; 75,000 to 99,999: 78; 100,000 to 149,999: 69; 150,000 and above: 18
50,000 to 74,999 miles has the most reports with usable mileage (107). 122 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2004 | 2 |
| 2005 | 6 |
| 2006 | 15 |
| 2007 | 11 |
| 2008 | 22 |
| 2009 | 25 |
| 2010 | 24 |
| 2011 | 47 |
| 2012 | 29 |
| 2013 | 26 |
| 2014 | 46 |
| 2015 | 42 |
| 2016 | 48 |
| 2017 | 42 |
| 2018 | 29 |
| 2019 | 12 |
| 2020 | 15 |
| 2021 | 9 |
| 2022 | 24 |
| 2023 | 11 |
| 2024 | 4 |
| 2025 | 8 |
| 2026 | 2 |
2004: 2; 2005: 6; 2006: 15; 2007: 11; 2008: 22; 2009: 25; 2010: 24; 2011: 47; 2012: 29; 2013: 26; 2014: 46; 2015: 42; 2016: 48; 2017: 42; 2018: 29; 2019: 12; 2020: 15; 2021: 9; 2022: 24; 2023: 11; 2024: 4; 2025: 8; 2026: 2
Pattern summary
Electrical System leads the component reports. Steering behavior appears in 84 complaint narratives. Braking behavior appears in 77 complaint narratives. Electrical and battery issues appears in 52 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10135564 · 2005-09-07 (September 7, 2005)
STEERING IS MAKING A WHEEZING NOISE AND IT FEELS HARD TO STEER COMPARED TO OTHER VEHICLES. ENGINE FELLS LIKE STALLING AFTER HITTING BRAKES; ENGINE IS SHAKING ON THE DRIVE MODE WHEN YOU ARE NOT MOVING AND ON BRAKE MODE; MORE THAN 10 TIMES, WILL TAKE TO THE DEALERSHIP SOON. *NM
Owner-reported narrative. 19,000 miles reported. Look up ODI 10135564 at NHTSA ↗
Owner report 10149378 · 2006-02-03 (February 3, 2006)
DT*: THE CONTACT STATED WHILE DRIVING 50MPH THERE WAS A NOISE COMING FROM THE ENGINE. THE POWER STEERING WENT OUT PREVENTING THE VEHICLE FROM TURNING. AFTER THE VEHICLE WAS PULLED OFF THE ROAD SIDE A WARNING LIGHT ILLUMINATED ON THE DASH. THE VEHICLE WAS TOWED TO A DEALERSHIP WERE IT IS CURRENTLY BEING INSPECTED.
Owner-reported narrative. 35,000 miles reported. Look up ODI 10149378 at NHTSA ↗
Owner report 10099528 · 2004-12-09 (December 9, 2004)
NHTSA 04V296000 CONCERNING SBC HYDRAULIC UNIT. AFTER HAVING THE SBC HYDRAULIC UNIT REPLACED THE BRAKES FAILED. *AK *TC
Owner-reported narrative. Look up ODI 10099528 at NHTSA ↗
Owner report 10249773 · 2008-11-25 (November 25, 2008)
TL*THE CONTACT OWNS A 2003 MERCEDES BENZ ML350. WHILE DRIVING AT AN UNKNOWN SPEED, THE CONTACT SMELLED A BURNING ODOR. HE NOTICED THAT THE DRIVER'S SEAT WAS BURNING. IF IT HAD NOT BEEN FOR HIS WALLET IN HIS BACKPOCKET, HIS PANTS WOULD HAVE CAUGHT FIRE. THE ELECTRICAL WIRES BURNED THROUGH HIS LEATHER SEATS. THE CONTACT SEARCHED THE INTERNET, BUT FOUND NO RECALLS PERTAINING TO THIS FAILURE. THE VEHICLE HAS NOT YET BEEN TAKEN TO THE DEALER. THE FAILURE MILEAGE WAS 51,400.
Owner-reported narrative. 51,400 miles reported. Look up ODI 10249773 at NHTSA ↗
Owner report 10259532 · 2009-02-21 (February 21, 2009)
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 ORIG…
Owner-reported narrative. 77,500 miles reported. Look up ODI 10259532 at NHTSA ↗
Owner report 10850280 · 2016-03-17 (March 17, 2016)
TRANSMISSION DISENGAGES AT HIGHWAY SPEEDS
Owner-reported narrative. 165,000 miles reported. Look up ODI 10850280 at NHTSA ↗
Owner report 10168905 · 2006-09-21 (September 21, 2006)
MY MERCEDES ML 350 AND ML 320 HAVE BOTH HAD EPISODES WHEN THE AUTOMATIC TRANSMISSION SLIPPED INTO NEUTRAL WHILE DRIVING ON THE HIGHWAY. THE ONLY COMMON DENOMINATOR WAS THAT THE INCIDENTS OCCURRED AFTER DRIVING OVER HIGHWAY SECTION DIVIDERS WHICH WERE SOMEWHAT BUMPY. SPEEDS WERE APPROX. 70 MPH IN ALL 3 INCIDENTS. ALL 3 TIMES, THE CAR HAD TO BE COASTED OFF THE HIGHWAY TO A FULL STOP, AND SHUT DOWN. THE TRANSMISSION WORKED FINE AFTER THE CAR WAS RESTARTED. THE ML 320 HAD 2 INCIDENTS IN THE SAME TRIP WHEN IT HAD ABOUT 65,000 MILES ON IT. DEA…
Owner-reported narrative. 28,000 miles reported. Look up ODI 10168905 at NHTSA ↗
Owner report 10229634 · 2008-06-02 (June 2, 2008)
I OWN A MERCEDES ML 350 2003; WHILE DRIVING THE CAR TO WORK THIS MORNING THE CAR STOPPED ACCELERATING, BECAME DISABLED AND STEERING, BECAME IMPOSSIBLE. THE CAR SLOWED ON ITS OWN WHILE I WAS IN TRAFFIC ON A MAJOR ROAD WITH SPEED LIMITS UP TO 40 MPH AND I WAS UNABLE TO MOVE THE CAR INTO THE SHOULDER CREATING A MAJOR SAFETY ISSUE. EVENTUALLY THE CAR COASTED ONTO THE SHOULDER AND ALL LIGHTS BECAME ILLUMINATED ON THE DASHBOARD. UPON HAVING IT TOWED TO MERCEDES BENZ I WAS TOLD THAT IT WAS INITIALLY A KEY FAILURE IN WHICH COMMUNICATION BETWEEN THE …
Owner-reported narrative. 93,000 miles reported. Look up ODI 10229634 at NHTSA ↗
Owner report 10133797 · 2005-08-22 (August 22, 2005)
WHILE DRIVING MY 2005 MERCEDES BENZ 350 ALONG ROUTE 1 IN NEW JERSEY, WITHOUT HEARING OR FEELING ANYTHING, MY GAS TANK WAS PUNCTURED. WHEN I STOPPED I SAW A PUDDLE UNDER THE CAR AND FOUND THAT THERE WAS A STEADY FLOW OF GAS FROM UNDER MY CAR. THE FIRE DEPARATMENT CAME AND THE CAR WAS TOWED AWAY. THE ENTIRE GAS TANK WAS REPLACED AT MY EXPENSE SINCE MERCEDES BENZ CLAIMS THAT FUEL TANKS ARE NOT THE SUBJECT OF ANY WARRANTY AND IF THEY ARE PUNCTURED IT IS NOT THEIR RESPONSIBILITY. I FIND IT HARD TO BELIEVE THAT AN OEM IS NOT RESPONSIBLE TO ENSURE…
Owner-reported narrative. Look up ODI 10133797 at NHTSA ↗
Owner report 10138270 · 2005-09-30 (September 30, 2005)
DT: THE CONTAC TOWNS A 2004 MERCEDES BENZ WITH 26,933 MILES ON IT THAT CUTS OFF WHEN HE HITTING A BUMP IN THE ROAD. THE DEALER KEPT THE VEHICLE FOR FOUR DAYS. THE VEHICLE WAS TAKEN TO THE DEALER TWICE. ON THE SECOND TRIP TO THE DEALER A NEW HARNESS WAS PLACED IN. THE VEHICLE WAS PICKED UP AFTER FOUR DAYS AND CONTINUED TO SHUT OFF. NO LIGHTS HAD COME ON PRIOR TO THE INCIDENT AND THE STEERING WHEEL DID NOT LOCK. THE VEHICLE IS CURRENTLY COVERED UNDER WARRANTY. THE CONTACT STATED THAT THE DEALER WAS NOT SURE WHAT THE PROBLEM WAS AND THOUG…
Owner-reported narrative. 29,350 miles reported. Look up ODI 10138270 at NHTSA ↗
Recalls by model year
All campaigns in the snapshot affecting each model year, including recalls announced years later.
Recall campaigns
Shared campaigns appear once in each affected model year.
| Category | Count |
|---|---|
| 2001 | 0 |
| 2003 | 0 |
| 2004 | 0 |
| 2005 | 0 |
| 2006 | 2 |
| 2007 | 2 |
| 2008 | 2 |
| 2009 | 3 |
2001: 0; 2003: 0; 2004: 0; 2005: 0; 2006: 2; 2007: 2; 2008: 2; 2009: 3