2003 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
"CERTIFIED PRE-OWNED DEALERSHIP BOUGHT MERCEDES BENZ 2003 C-240 4-MATIC. PURCHASED WITH 41K MILES IN 2008. APPROXIMATELY 6/2013 THE SRS LIGHT CAME ON STATING 1 MALFUNCTION ON THE CLUSTER RELATING TO RESTRAINT SYSTEM. ADVISED OF NUMEROUS CASES OF THIS DEFECT IN MODEL YEAR 2003. DUE TO WARRANTY EXPIRAT..."
"CERTIFIED PRE-OWNED DEALERSHIP BOUGHT MERCEDES BENZ 2003 C-240 4-MATIC. PURCHASED WITH 41K MILES IN 2008. APPROXIMATELY 6/2013 THE SRS LIGHT CAME ON STATING 1 MALFUNCTION ON THE CLUSTER RELATING TO RESTRAINT SYSTEM. ADVISED OF NUMEROUS CASES OF THIS DEFECT IN MODEL YEAR 2003. DUE TO WARRANTY EXPIRAT..."
"I WAS ALWAYS GETTING AN ERROR MESSAGE TELLING ME MY REAR LIGHTS WERE NOT WORKING. I EXPERIENCED AN ELECTRICAL FIRE IN MY TRUNK, WHICH CAUSED THE AIR BAGS TO DEPLOY AND THE ENTIRE LEFT SIDE OF MY CAR CAUGHT FIRE. THE CAR WAS TOTALED. CAR WOULD NOT START, TRUNK WOULD NOT OPEN. CAR WAS TOTALED BY D..."
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
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