2003 Mercedes-Benz Ml320 problems
Verdict · NHTSA data
A typical year for this model
The 2003 Mercedes-Benz Ml320 sits mid-pack among Ml320 years: 31 NHTSA complaints against a model median of roughly 31, with no recalls and one closed investigation.
No single system dominates the record — complaints spread across steering (7), seats (6), and electrical system (4), which usually points to general build quality rather than one defect.
31
NHTSA complaints
0
Recalls
1
Investigations
2
Crash-involved
4
Fires reported
2
Injuries
0
Deaths
—
NCAP overall
How does 2003 compare to other Ml320 years?
What are the most common 2003 Mercedes-Benz Ml320 problems?
| Component | Complaints | Share | vs prior year |
|---|---|---|---|
| Steering | 7 | 23% | ▼ down |
| Seats | 6 | 19% | — flat |
| Speed Control | 4 | 13% | ▼ down |
| Electrical System | 4 | 13% | ▼ down |
| Brakes | 4 | 13% | ▼ down |
| Transmission | 2 | 6% | — flat |
| Fuel System | 2 | 6% | — flat |
| Suspension | 1 | 3% | ▼ down |
| Airbags | 1 | 3% | ▼ down |
Consumer complaints filed with NHTSA
Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.
“LOSS OF POWER STEERING FLUID, IT APPEARS TO BE FROM THE HOSE CONNECTION TO THE RADIATOR DURING DRIVING AND WHILE STATIONERY. THIS ISSUE WAS PREVIOUSLY RECALLED, I BELIEVE TWICE. DEALER REQUESTED $125 DIAGNOSTIC CHARGE. MB USA INFORMED IN A PHONE CONVERSATION, THAT THIS PROBLEM WAS ALREADY FIXED…”
“DRIVER'S SEAT HEATER SHORTED OUT WHILE VEHICLE WAS BEING DRIVEN. THE EVENT OCURRED SO QUICKLY AND WAS SO SEVERE THAT IT BURNED THROUGH THE LEATHER SEAT UPHOLSTERY AND A VERY HEAVY PAIR OF DENIM JEANS I WAS WEARING ALMOST IMEDIATELY AND UNEXPECTEDLY. THE CONSEQUENCES ARE PRETTY MUCH OBVIOUS AND…”
“WHILE PARKING VEHICLE ACCELERATED. CONSUMER APPLIED THE BRAKE PEDAL BUT THE BRAKES FAILED. THIS CAUSED CONSUMER'S VEHICLE TO COLLIDE WITH THE VEHICLE IN FRONT. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION. THE CAUSE HAD NOT BEEN DETERMINED. *AK”
“BAS LIGHT TURNS ON WHILE DRIVING ON THE FREEWAY AND THE CAR SHUTS OFF ON FREEWAY WHILE DRIVING. THE GAS PEDAL DIDN'T WORK SO I PULLED OVER. I FEEL LIKE ITS A DANGEROUS TO DRIVE AND PUTTING OTHER DRIVER IN DANGER SO I STOPPED DRIVING IT. THERE WAS A RECALL FOR 2000-2002 ML320 BUT MY CAR IS 2003 AND…”
“WHILE PARKING VEHICLE ACCELERATED. CONSUMER APPLIED THE BRAKE PEDAL BUT THE BRAKES FAILED. THIS CAUSED CONSUMER'S VEHICLE TO COLLIDE WITH THE VEHICLE IN FRONT. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION. THE CAUSE HAD NOT BEEN DETERMINED. *AK”
2003 Mercedes-Benz Ml320 — common questions
Is the 2003 Mercedes-Benz Ml320 reliable?
It is close to typical for the Ml320: 31 NHTSA complaints, 0 recalls, and 1 investigation on file.
What are the most common 2003 Ml320 problems?
According to NHTSA complaint data, the leading problem areas are steering (7 complaints), seats (6 complaints), electrical system (4 complaints).
Does the 2003 Mercedes-Benz Ml320 have recalls?
No. NHTSA lists no recall campaigns for the 2003 Mercedes-Benz Ml320.
Is the 2003 Mercedes-Benz Ml320 under NHTSA investigation?
NHTSA opened one investigation into this model year; all are now closed.
Which Mercedes-Benz Ml320 years should you avoid?
Based on complaint rates and open investigations, the Ml320 years to avoid are 2000, 1998, 2001, 1999, 2002, 2009, 2010. The cleanest record among Ml320 years belongs to 2011.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.