IllustrationLAST TIME I USED THE HEATED SEATS, TURNED THEM ON THE WAR I ALWAYS HAVE, BUT DRIVING DOWN THE ROAD MY LEG FELT LIKE IT WAS ON FIRE. ONE SPOT IN MY SEAT BECAME EXTREMELY HOT AND WAS SMOKING. IMMEDIATELY I TURNED THE SEATS OFF AND HAVE NEVER USED THEM AGAIN. CALLED DEALER TO ASK IF THERE WAS A RECALL, BUT NO. *TR
2003 Mercedes Benz ML500
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all ML500 years →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
Limited mileage data: 8 of 13 reports include usable mileage. There isn’t enough coverage to show a useful chart.
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.
- Engine. Review the 5 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Seats. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports2 fire reports1 injury reports
Seats complaints
3 reportsTL* THE CONTACT OWNS A 2003 MERCEDES BENZ ML 500. WHILE DRIVING APPROXIMATELY 35 MPH, THE CONTACT SMELLED A BURNING ODOR AS HIS LEFT PANT LEG CAUGHT ON FIRE. THE CONTACT SUSTAINED A SMALL BURN TO THE LEG. THE CONTACT STOPPED THE VEHICLE AND NOTICED SPARKS AND A SMALL FLAME COMING THROUGH A SMALL HOLE ON THE FRONT PASSENGER'S SEA…
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TL* THE CONTACT OWNS A 2003 MERCEDES BENZ ML 500. WHILE DRIVING APPROXIMATELY 35 MPH, THE CONTACT SMELLED A BURNING ODOR AS HIS LEFT PANT LEG CAUGHT ON FIRE. THE CONTACT SUSTAINED A SMALL BURN TO THE LEG. THE CONTACT STOPPED THE VEHICLE AND NOTICED SPARKS AND A SMALL FLAME COMING THROUGH A SMALL HOLE ON THE FRONT PASSENGER'S SEAT. THE CONTACT WAS ABLE TO EXTINGUISH THE FIRE WITH WATER AND WAS TREATED FOR THE SMALL BURN. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR DIAGNOSTICS OR REPAIRS. THE APPROXIMATE FAILURE MILEAGE WAS 97,000.
2003 MERCEDES BENZ 500 - HEATED SEAT BURNT UP - SMALL HOLE IN SEAT - IT WAS VERY, VERY HOT. 8JB
Official recalls
0No 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
0No exact-year investigations in this snapshot.