Mercedes-Benz C400 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
10 owner complaints analyzed
8 distinct recall campaigns
41,850 mi median reported failure mileage
Scope: 2015 to 2015 model years. Data snapshot: . 6 complaints include usable failure mileage.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Structure is the most frequently named component, appearing in 3 of 10 complaints (30.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 2 | 20.0% |
| Engine operation | 1 | 10.0% |
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 |
|---|---|
| Structure | 3 |
| Structure:Body | 3 |
| Electrical System | 1 |
| Electronic Stability Control (Esc) | 1 |
| Engine | 1 |
| Suspension | 1 |
| Unknown Or Other | 1 |
| Vehicle Speed Control | 1 |
Structure: 3; Structure:Body: 3; Electrical System: 1; Electronic Stability Control (Esc): 1; Engine: 1; Suspension: 1; Unknown Or Other: 1; Vehicle Speed Control: 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 | 3 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 1 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 2 |
| 150,000 and above | 0 |
Under 25,000: 3; 25,000 to 49,999: 0; 50,000 to 74,999: 1; 75,000 to 99,999: 0; 100,000 to 149,999: 2; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (3). 4 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 |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 1 |
| 2021 | 1 |
| 2024 | 4 |
| 2025 | 2 |
2015: 1; 2016: 1; 2017: 1; 2021: 1; 2024: 4; 2025: 2
Pattern summary
Structure leads the component reports. Braking behavior appears in 2 complaint narratives. Engine operation 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 11021610 · 2017-09-05 (September 5, 2017)
ENGINE RANDOMLY STALLS AFTER SITTING AT RED LIGHT/OR WHILE IN TRAFFIC. ALL WARNING/DASHBOARD LIGHTS COME ON AND YOU CAN ONLY START THE CAR BY PUTTING IT IN PARK, THEN PUSHING START. THE CAR HAS LESS THAN 10K MILES. DEALERSHIP CAN'T FIND CODE OR REPLICATE THE ISSUE. INTERNET SEARCHES INDICATE IT IS AN ISSUE AND OTHER MAKES AND MODELS HAVE BEEN RECALLED, BUT WITHOUT A CODE THE DEALERSHIP DOESN'T KNOW WHAT TO DO. I WAS NEARLY REAR-ENDED BECAUSE IT DOESN'T HAPPEN UNTIL YOU TAKE YOUR FOOT OFF THE BRAKE AND PRESS THE GAS TO MOVE FORWARD, AND THAT'S…
Owner-reported narrative. 9,700 miles reported. Look up ODI 11021610 at NHTSA ↗
Owner report 11641763 · 2025-02-10 (February 10, 2025)
Rear subframe cracked while driving and rear of car sways from one lane to the next when brakes are applied. Car is not safe
Owner-reported narrative. Look up ODI 11641763 at NHTSA ↗
Recalls by model year
All campaigns in the snapshot affecting each model year, including recalls announced years later.
Recall campaigns
Shared campaigns appear once in each affected model year.
| Category | Count |
|---|---|
| 2015 | 8 |
2015: 8
Year-by-year records
| Model year | Complaints | Recalls | Change in recalls |
|---|---|---|---|
| 2015 | 10 | 8 | Not available |