AutoUtility currently tracks 46 official NHTSA owner defect complaints for the 2020 Mercedes-Benz C-Class. Driver Assistance & Safety Tech issues are the most frequently reported category, appearing in 10 complaints (21.7% of submitted records). Among these NHTSA complaint records, 5 filings cite a crash, 4 report one or more injuries. The 2020 Mercedes-Benz C-Class belongs to the 4th Generation (W205) platform.
Factual proportion of owner complaints categorized by automotive subsystem in NHTSA records
10 owner complaints submitted to NHTSA ODI for this subsystem.
7 owner complaints submitted to NHTSA ODI for this subsystem.
7 owner complaints submitted to NHTSA ODI for this subsystem.
7 owner complaints submitted to NHTSA ODI for this subsystem.
Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis
4 complaint narratives describe this symptom.
Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation
"I own a 2020 Mercedes-Benz C300 equipped with a power trunk. On July 22, 2026, I took my vehicle to Annapolis Mercedes-Benz because the power trunk was repeatedly closing on its own while people were standing in the trunk opening. I specifically reported that the trunk was unexpectedly closing..."
"Automatic trunk closing mechanism caused the trunk hood to close on my head as I was putting groceries in the trunk. This has occurred several times in the past but this time it hit my head with more force. I have not brought it to a dealer and it has not been inspected by the manufacturer, police..."
"Vehicle has ongoing and recurring electrical and engine-related defects that affect safe operation. The primary systems involved are the electrical system, engine ignition system, and powertrain. The vehicle is available for inspection upon request. Prior service records show issues beginning in..."
"The contact owns a 2020 Mercedes-Benz C300. The contact stated that while at a stop, the vehicle failed to accelerate as intended. There was no warning light illuminated. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and..."
"Car stops accelerating and shifts into neutral without warning I nearly got hit from behind. I have consulted several other Mercedes vehicle owners and all had the same issue. Two of the other owners stated that this happened on the interstate and was very lucky they were not involved in a..."
Reported defect complaint volume across sibling model years (2015–2026)
| Model Year | NHTSA Complaints | Crash Reports | Safety Recalls | Detailed Report |
|---|---|---|---|---|
| 2015 Mercedes-Benz C-Class | 441 | 11 | 14 | View 2015 Problems → |
| 2016 Mercedes-Benz C-Class | 315 | 7 | 14 | View 2016 Problems → |
| 2017 Mercedes-Benz C-Class | 253 | 12 | 17 | View 2017 Problems → |
| 2018 Mercedes-Benz C-Class | 0 | 0 | 19 | View 2018 Problems → |
| 2019 Mercedes-Benz C-Class | 75 | 3 | 16 | View 2019 Problems → |
| 2020 Mercedes-Benz C-Class Current Page | 46 | 5 | 12 | Current |
| 2021 Mercedes-Benz C-Class | 16 | 0 | 7 | View 2021 Problems → |
| 2022 Mercedes-Benz C-Class | 26 | 1 | 9 | View 2022 Problems → |
| 2023 Mercedes-Benz C-Class | 25 | 2 | 10 | View 2023 Problems → |
| 2024 Mercedes-Benz C-Class | 15 | 2 | 3 | View 2024 Problems → |
| 2025 Mercedes-Benz C-Class | 4 | 0 | 2 | View 2025 Problems → |
| 2026 Mercedes-Benz C-Class | 0 | 0 | 1 | View 2026 Problems → |
Complete distribution of consumer defect reports across all 26 granular NHTSA system and subsystem classifications
| Vehicle Component / System | Total Complaints | Crash Reports | Fire Reports | Injury Entries | Fatality Entries |
|---|---|---|---|---|---|
| Back Over Prevention / Camera NHTSA category: BACK OVER PREVENTION | 4 | 2 | 0 | 0 | 0 |
| Engine NHTSA category: ENGINE | 4 | 0 | 0 | 0 | 0 |
| Structure & Body NHTSA category: STRUCTURE | 4 | 0 | 0 | 1 | 0 |
| Other / Uncategorized NHTSA category: UNKNOWN OR OTHER | 4 | 0 | 0 | 0 | 0 |
| Air Bags NHTSA category: AIR BAGS | 3 | 0 | 0 | 1 | 0 |
| Powertrain NHTSA category: POWER TRAIN | 3 | 0 | 0 | 0 | 0 |
| Electrical System NHTSA category: ELECTRICAL SYSTEM | 2 | 1 | 0 | 0 | 0 |
| POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM | 2 | 0 | 0 | 0 | 0 |
| Tires NHTSA category: TIRES | 2 | 0 | 0 | 0 | 0 |
| Visibility / Glass NHTSA category: VISIBILITY | 2 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| Forward Collision Avoidance NHTSA category: FORWARD COLLISION AVOIDANCE | 1 | 1 | 0 | 1 | 0 |
| Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| FUEL/PROPULSION SYSTEM,FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| Doors, Latches & Locks NHTSA category: LATCHES/LOCKS/LINKAGES | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ELECTRICAL SYSTEM,ENGINE | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ENGINE | 1 | 0 | 0 | 0 | 0 |
| Steering NHTSA category: STEERING | 1 | 0 | 0 | 0 | 0 |
| STEERING,SUSPENSION | 1 | 0 | 0 | 0 | 0 |
| STEERING,UNKNOWN OR OTHER | 1 | 1 | 0 | 2 | 0 |
| STRUCTURE,VISIBILITY | 1 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,LANE DEPARTURE | 1 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,LATCHES/LOCKS/LINKAGES | 1 | 0 | 0 | 0 | 0 |
| Vehicle Speed Control NHTSA category: VEHICLE SPEED CONTROL | 1 | 0 | 0 | 0 | 0 |
| VEHICLE SPEED CONTROL,ENGINE | 1 | 0 | 0 | 0 | 0 |
| Wheels & Hubs NHTSA category: WHEELS | 1 | 0 | 0 | 0 | 0 |
Cross-reference safety recalls, crash test safety ratings, and EPA fuel economy for this model year
Key performance indicators, EPA fuel economy specs, powertrain variants, and summary ratings.
Official recall campaigns, safety defect descriptions, and manufacturer free remedy instructions.
NHTSA 5-Star NCAP crash test results, driver assistance systems, and rollover resistance ratings.
EPA fuel economy ratings, electric range, and annual energy cost benchmarks.
Direct, deterministic answers synthesized from verified United States government databases for the 2020 Mercedes-Benz C-Class
In official NHTSA consumer records, the most frequently cited issue area for the 2020 Mercedes-Benz C-Class is Driver Assistance & Safety Tech, appearing in 10 records (21.7% of submitted filings).
Secondary reported categories include Body & Structure (7) and Powertrain & Transmission (7).
AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 46 consumer defect complaints and 12 safety recall campaigns for the 2020 Mercedes-Benz C-Class.
Reviewing documented component complaint distributions, recall remedy notices, and active federal investigations provides an objective, evidence-based view of the vehicle's historical safety and defect record.
Among consumer complaint records on file with NHTSA for the 2020 Mercedes-Benz C-Class, 5 filings cite a crash, 0 cite smoke or fire, and 4 report one or more injuries.
Incident entries represent consumer descriptions at the time of submission to federal authorities and do not establish mechanical causation or legal liability.
The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database under 49 CFR Part 576.
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.