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.
- • Total NHTSA Complaints: 46 reports
- • #1 Reported Problem Area: Driver Assistance & Safety Tech (10 reports • 21.7% of submitted complaints)
- • Secondary Problem Areas: Body & Structure (7), Powertrain & Transmission (7)
- • Crash-Citing Complaints: 5 filings
- • Fire-Citing Complaints: 0 filings
- • Complaints Reporting Injuries / Fatalities: 4 injury filings • 0 fatality filings
Most Reported Problems for 2020 Mercedes-Benz C-Class
Top automotive subsystem defect categories ranked by unique owner complaint volume in federal records
Driver Assistance & Safety Tech
NHTSA records list 1 official safety recall campaign for this model year involving the same broad component area:
- Campaign #22V232000 BACK OVER PREVENTION:DISPLAY FUNCTION
Body & Structure
NHTSA records list 2 official safety recall campaigns for this model year involving the same broad component area:
- Campaign #21V197000 STRUCTURE:BODY:ROOF AND PILLARS
- Campaign #23V854000 STRUCTURE:BODY:ROOF AND PILLARS
Powertrain & Transmission
Engine & Cooling
NHTSA records list 1 official safety recall campaign for this model year involving the same broad component area:
- Campaign #20V364000 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
Electrical System
NHTSA records list 3 official safety recall campaigns for this model year involving the same broad component area:
- Campaign #22V365000 ELECTRICAL SYSTEM:SOFTWARE
- Campaign #20V395000 ELECTRICAL SYSTEM:SOFTWARE
- Campaign #21V058000 ELECTRICAL SYSTEM:SOFTWARE
Symptoms Mentioned in NHTSA Owner Reports for 2020 Mercedes-Benz C-Class
Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis
AutoUtility uses deterministic phrase matching to identify recurring symptom descriptions within consumer-submitted NHTSA complaint narratives.
Loss of Motive Power While Driving
Recent NHTSA Owner Reports for 2020 Mercedes-Benz C-Class
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..."
Complaint History for Mercedes-Benz C-Class
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 → |
Detailed NHTSA Component Breakdown for 2020 Mercedes-Benz C-Class
Complete distribution of consumer defect reports across all 26 granular NHTSA system and subsystem classifications
| Vehicle Component / System | Total Complaints | Crash Reports | Fire Reports | Reported Injury Entries | Reported 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 |
The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database.
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.