2003 Mercedes Benz C230: 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
"CONSUMER STATES THAT VEHICLE IS TWO WEEKS OLD AND HAS A FUEL TANK PROBLEM. THE ENGINE LIGHT STAYS ILLUMNIATED. THE DEALER STATES A PART NEEDS TO BE REPLACED IN THE PLASTIC GAS TANK. PLEASE PROVIDE MORE INFORMATION. MR"
"THIS IS A NEW MERCEDES-BENZ C230 COMPRESSOR ENGINE WITH ONE THOUSAND MILES. LAST MONTH A SULFUR SMELL EMITTED FROM THE EXHAUST WHILE WARMING. I WAS TOLD THIS IS NORMAL. THREE TIMES THIS WEEK ON IGNITION THE CAR SHOOK VIOLENTLY AND WOULD NOT STOP UNTIL THE ENGINE WAS TURNED OFF. THE CAR IS DRIVABLE A..."
"THIS IS A NEW MERCEDES-BENZ C230 COMPRESSOR ENGINE WITH ONE THOUSAND MILES. LAST MONTH A SULFUR SMELL EMITTED FROM THE EXHAUST WHILE WARMING. I WAS TOLD THIS IS NORMAL. THREE TIMES THIS WEEK ON IGNITION THE CAR SHOOK VIOLENTLY AND WOULD NOT STOP UNTIL THE ENGINE WAS TURNED OFF. THE CAR IS DRIVABLE A..."
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.
Who Files Complaints?
Mercedes Benz C230 — 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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