2003 Mercedes Benz C320: 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
"THE THROTTLE LINKAGE AND CONTROL PEDAL MALFUNCTION NEARLY RESULTED IN A SERIOUS ACCIDENT. THE BRAKES HAD TO BE VIOLENTLY APPLIED WITH BOTH FEET TO PREVENT THE SURGING VEHICLE FROM REAR-ENDING A VEHICLE IN FRONT OF MINE AT A TRAFFIC INTERSECTION.*AK"
"THE POWER STEERING WAS TIGHT AND IT WAS DIFFICULT TO CONTROL THE STEERING WHEEL. *JB *TT"
"THE FUEL GAUGE FAILED TO FUNCTION. IT DIDN'T REGISTER THE CORRECT GAS LEVEL IN THE TANK. THE DIGITAL CONSOLE LIGHT MALFUNCTIONED. IT WOULD EITHER NOT ILLUMINATE WHEN THE VEHICLE WAS STARTED OR WHEN ILLUMINATED IT WILL SUDDENLY GO OUT. THE VEHICLE HESITATED UPON ACCELERATION WHEN DRIVEN FOR LONG 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.
Who Files Complaints?
Mercedes Benz C320 — 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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