2004 Mercedes Benz C320 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
15 owner complaints analyzed
3 distinct recall campaigns
64,500 mi median reported failure mileage
Scope: 2004 model year. Data snapshot: . 12 complaints include usable failure mileage.
Most common problems
Fuel/Propulsion System is the most frequently named component, appearing in 4 of 15 complaints (26.7%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Engine operation | 1 | 6.7% |
| Braking behavior | 1 | 6.7% |
| Steering behavior | 1 | 6.7% |
| Fuel system concerns | 1 | 6.7% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Fuel/Propulsion System | 4 |
| Air Bags | 2 |
| Visibility | 2 |
| Electrical System | 1 |
| Electronic Stability Control (Esc) | 1 |
| Engine | 1 |
| Engine And Engine Cooling:Cooling System | 1 |
| Equipment | 1 |
Fuel/Propulsion System: 4; Air Bags: 2; Visibility: 2; Electrical System: 1; Electronic Stability Control (Esc): 1; Engine: 1; Engine And Engine Cooling:Cooling System: 1; Equipment: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 1 |
| 25,000 to 49,999 | 2 |
| 50,000 to 74,999 | 5 |
| 75,000 to 99,999 | 3 |
| 100,000 to 149,999 | 1 |
| 150,000 and above | 0 |
Under 25,000: 1; 25,000 to 49,999: 2; 50,000 to 74,999: 5; 75,000 to 99,999: 3; 100,000 to 149,999: 1; 150,000 and above: 0
50,000 to 74,999 miles has the most reports with usable mileage (5). 3 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 1 |
| 2011 | 1 |
| 2012 | 1 |
| 2013 | 2 |
| 2014 | 3 |
| 2015 | 2 |
| 2016 | 1 |
| 2018 | 1 |
| 2022 | 1 |
2008: 1; 2009: 1; 2010: 1; 2011: 1; 2012: 1; 2013: 2; 2014: 3; 2015: 2; 2016: 1; 2018: 1; 2022: 1
Pattern summary
Fuel/Propulsion System leads the component reports. Engine operation appears in 1 complaint narratives. Braking behavior appears in 1 complaint narratives. Steering behavior appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10513731 · 2013-05-28 (May 28, 2013)
TL* THE CONTACT OWNS A 2004 MERCEDES BENZ C320. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT MENTIONED THAT THE FAILURE OCCURRED SEVERAL TIMES. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN WAS UNABLE TO DIAGNOSE THE FAILURE. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAGE WAS 1,000 AND THE CURRENT MILEAGE WAS 109,000. *TR
Owner-reported narrative. 1,000 miles reported. Look up ODI 10513731 at NHTSA ↗
Owner report 10549582 · 2013-10-25 (October 25, 2013)
TL* THE CONTACT OWNS A 2004 MERCEDES BENZ C320. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 60 MPH, THE STEERING WHEEL BECAME DIFFICULT TO MANEUVER AS THE BRAKES FAILED TO RESPOND. THE CONTACT MERGED TO THE SHOULDER AND POWERED OFF THE VEHICLE, BUT WAS UNABLE TO RESTART THE VEHICLE. THE VEHICLE WAS TOWED TO A DEALER WHERE THE FAILURE WAS UNABLE TO BE REPLICATED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 79,580 AND THE CURRENT MILEAGE WAS 89,000.
Owner-reported narrative. 79,580 miles reported. Look up ODI 10549582 at NHTSA ↗
Owner report 11063454 · 2018-01-18 (January 18, 2018)
STRONG GAS SMELL
Owner-reported narrative. 76,000 miles reported. Look up ODI 11063454 at NHTSA ↗