Total Complaints
3 filings
MERCEDES-BENZ M-CLASS · model year
3 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2007MERCEDES-BENZM-CLASS carries 3 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 3 fires, 0 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 2007 M-CLASS is seats:front assembly:seat heater/cooler with 1 filings, followed by seats (1) and electrical system (1). 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 1 investigation file overlapping the 2007 M-CLASS. 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.
Total Complaints
3 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER | 1 |
| SEATS | 1 |
| ELECTRICAL SYSTEM | 1 |
MALFUNCTION IN THE DRIVER'S SEAT BACK REST HEATING SYSTEM CAUSED MELTING OF THE UPHOLSTERY AND OF THE OUTER LAYER OF THE DRIVER'S CAR COAT AT THE MELTED SEAT-BACK UPHOLSTERY. NO OVERT FIRE. ACTION TAKEN: SWITCHED OFF SEAT HEAT. BARE WIRES VISIBLE INSIDE THE SEAT-BACK. *TR
Mileage: 97,900
MALFUNCTION IN THE DRIVER'S SEAT BACK REST HEATING SYSTEM CAUSED MELTING OF THE UPHOLSTERY AND OF THE OUTER LAYER OF THE DRIVER'S CAR COAT AT THE MELTED SEAT-BACK UPHOLSTERY. NO OVERT FIRE. ACTION TAKEN: SWITCHED OFF SEAT HEAT. BARE WIRES VISIBLE INSIDE THE SEAT-BACK. *TR
Mileage: 97,900
SEAT WARMER BURNED A HOLE THROUGH MY DRIVER'S SEAT. APPROXIMATELY 2'-3' IN HEIGHT AND APPROXIMATELY 1/2' IN LENGTH. *TR
Mileage: 403,766
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.
Read our methodology — how this data is sourced, computed, and verified.