2004 Mercedes Benz C240: Reliability Data
When Do Complaints Happen?
Distribution of NHTSA complaints by vehicle mileage at time of report.
What Fails?
Most reported component issues from NHTSA complaints.
Severity Assessment
Sample Complaint Reports
"2004 MERCEDES C240 WITH SUNROOF AND OVERHEAD CONTROL PANEL. CUSTOMER STATES THAT AFTER THE CAR WAS SUPPOSED TO BE REPAIRED THE VEHICLE ACQUIRED OTHER PROBLEMS ALONG WITH A LOOSE SEAT THAT MOVES WHILE DRIVING. *KB THE SUNROOF WOULDN'T CLOSE ON AUTO MODE, THE CIGARETTE LIGHTER WAS INOPERABLE, THE AL..."
"2004 MERCEDES C240 WITH SUNROOF AND OVERHEAD CONTROL PANEL. CUSTOMER STATES THAT AFTER THE CAR WAS SUPPOSED TO BE REPAIRED THE VEHICLE ACQUIRED OTHER PROBLEMS ALONG WITH A LOOSE SEAT THAT MOVES WHILE DRIVING. *KB THE SUNROOF WOULDN'T CLOSE ON AUTO MODE, THE CIGARETTE LIGHTER WAS INOPERABLE, THE AL..."
"2004 MERCEDES C240 WITH SUNROOF AND OVERHEAD CONTROL PANEL. CUSTOMER STATES THAT AFTER THE CAR WAS SUPPOSED TO BE REPAIRED THE VEHICLE ACQUIRED OTHER PROBLEMS ALONG WITH A LOOSE SEAT THAT MOVES WHILE DRIVING. *KB THE SUNROOF WOULDN'T CLOSE ON AUTO MODE, THE CIGARETTE LIGHTER WAS INOPERABLE, THE AL..."
Source: NHTSA ODI Complaints Database. Names and identifying details omitted.
When Were Complaints Filed?
Number of complaints by the year the issue occurred.
When Does Each Component Fail?
Median mileage at complaint for top components.
Where Are Complaints Coming From?
Top states by complaint count.
Mercedes Benz C240 — Other Years
See how this model compares across different model years.
Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.
Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.
Data through: 2026-03-28
Copy this code to embed on your website: