AutoUtility currently tracks 253 official NHTSA owner defect complaints for the 2017 Mercedes-Benz C-Class. Engine & Cooling issues are the most frequently reported category, appearing in 74 complaints (29.2% of submitted records). Among these NHTSA complaint records, 12 filings cite a crash, 3 cite a fire, 13 report one or more injuries. The 2017 Mercedes-Benz C-Class belongs to the 4th Generation (W205) platform.
- • Total NHTSA Complaints: 253 reports
- • #1 Reported Problem Area: Engine & Cooling (74 reports • 29.2% of submitted complaints)
- • Secondary Problem Areas: Air Bags & Restraints (41), Fuel & Propulsion System (35)
- • Crash-Citing Complaints: 12 filings
- • Fire-Citing Complaints: 3 filings
- • Complaints Reporting Injuries / Fatalities: 13 injury filings • 0 fatality filings
Most Reported Problems for 2017 Mercedes-Benz C-Class
Top automotive subsystem defect categories ranked by unique owner complaint volume in federal records
Engine & Cooling
Air Bags & Restraints
NHTSA records list 3 official safety recall campaigns for this model year involving the same broad component area:
- Campaign #21V032000 SEAT BELTS:FRONT:RETRACTOR
- Campaign #17V251000 SEAT BELTS:PRETENSIONER
- Campaign #17V627000 AIR BAGS:FRONTAL
Fuel & Propulsion System
Electrical System
NHTSA records list 3 official safety recall campaigns for this model year involving the same broad component area:
- Campaign #17V114000 ELECTRICAL SYSTEM:STARTER ASSEMBLY
- Campaign #22V365000 ELECTRICAL SYSTEM:SOFTWARE
- Campaign #21V058000 ELECTRICAL SYSTEM:SOFTWARE
Body & Structure
NHTSA records list 3 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
- Campaign #18V456000 STRUCTURE:BODY
Recent NHTSA Owner Reports for 2017 Mercedes-Benz C-Class
Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation
"The convertible roof gets stuck partially in open or closed position. It has to be forced closed. The vehicle is always garaged and the convertible was used very carefully but still has been troublesome from the beginning"
"2017 Mercedes c300 the switchover valve in the diagnostic module of the evaporative emission control system is jammed open. This issue was called for recall for models 2018 or later, but 2017 was not part of it."
"The contact owns a 2017 Mercedes-Benz C300. While driving at approximately 15 mph, the contact observed smoke emanating from under the hood. The vehicle was driven to her work location and parked. Upon exiting the vehicle and opening the hood, she observed orange flames coming from the engine..."
"strong evident fuel/ gas smell when driving and when the car is in park after driving."
"Check engine light for P052E which has been coming and going off for years now. Now the check engine light is there permanently. I spoke to Mercedes Benz customer service and requested for them to fix the problem now that the light is on permanently but they refuse to fix it because the car has..."
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 Current Page | 253 | 12 | 17 | Current |
| 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 | 46 | 5 | 12 | View 2020 Problems → |
| 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 2017 Mercedes-Benz C-Class
Complete distribution of consumer defect reports across all 61 granular NHTSA system and subsystem classifications
| Vehicle Component / System | Total Complaints | Crash Reports | Fire Reports | Reported Injury Entries | Reported Fatality Entries |
|---|---|---|---|---|---|
| Engine NHTSA category: ENGINE | 51 | 0 | 0 | 0 | 0 |
| Other / Uncategorized NHTSA category: UNKNOWN OR OTHER | 25 | 0 | 1 | 4 | 0 |
| Seat Belts NHTSA category: SEAT BELTS | 20 | 0 | 0 | 0 | 0 |
| Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM | 19 | 0 | 0 | 0 | 0 |
| Structure & Body NHTSA category: STRUCTURE | 17 | 0 | 0 | 0 | 0 |
| Air Bags NHTSA category: AIR BAGS | 9 | 4 | 0 | 4 | 0 |
| ELECTRICAL SYSTEM,ENGINE | 9 | 0 | 0 | 0 | 0 |
| Steering NHTSA category: STEERING | 8 | 1 | 0 | 2 | 0 |
| ENGINE,FUEL/PROPULSION SYSTEM | 7 | 0 | 0 | 0 | 0 |
| Visibility / Glass NHTSA category: VISIBILITY | 7 | 0 | 0 | 2 | 0 |
| Powertrain NHTSA category: POWER TRAIN | 5 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ENGINE | 5 | 0 | 0 | 0 | 0 |
| Wheels & Hubs NHTSA category: WHEELS | 5 | 0 | 0 | 0 | 0 |
| Electrical System NHTSA category: ELECTRICAL SYSTEM | 4 | 0 | 1 | 0 | 0 |
| Service Brakes NHTSA category: SERVICE BRAKES | 4 | 0 | 0 | 1 | 0 |
| Tires NHTSA category: TIRES | 4 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,AIR BAGS | 2 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,COMMUNICATION | 2 | 0 | 0 | 0 | 0 |
| Fuel System NHTSA category: FUEL SYSTEM, GASOLINE | 2 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM | 2 | 0 | 0 | 0 | 0 |
| Seats & Restraints NHTSA category: SEATS | 2 | 0 | 0 | 0 | 0 |
| STEERING,SUSPENSION | 2 | 0 | 0 | 0 | 0 |
| STRUCTURE,UNKNOWN OR OTHER | 2 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,ENGINE | 2 | 0 | 0 | 0 | 0 |
| Visibility & Wipers NHTSA category: VISIBILITY/WIPER | 2 | 0 | 0 | 0 | 0 |
| AIR BAGS,SEAT BELTS | 1 | 1 | 0 | 1 | 0 |
| AIR BAGS,SEAT BELTS,STRUCTURE | 1 | 1 | 0 | 2 | 0 |
| AIR BAGS,UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| AIR BAGS,VEHICLE SPEED CONTROL,SERVICE BRAKES | 1 | 1 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,AIR BAGS,SEAT BELTS | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,AIR BAGS,UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,ENGINE,VISIBILITY/WIPER | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,EXTERIOR LIGHTING | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,STRUCTURE | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,STRUCTURE,ENGINE | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,UNKNOWN OR OTHER | 1 | 1 | 0 | 0 | 0 |
| Engine & Cooling NHTSA category: ENGINE AND ENGINE COOLING | 1 | 0 | 0 | 0 | 0 |
| ENGINE AND ENGINE COOLING,ELECTRICAL SYSTEM | 1 | 0 | 0 | 0 | 0 |
| ENGINE,FUEL/PROPULSION SYSTEM,LANE DEPARTURE | 1 | 0 | 0 | 0 | 0 |
| Forward Collision Avoidance NHTSA category: FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| FUEL SYSTEM, GASOLINE,ELECTRICAL SYSTEM,ENGINE | 1 | 0 | 1 | 0 | 0 |
| POWER TRAIN,ELECTRICAL SYSTEM,ENGINE | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ELECTRONIC STABILITY CONTROL (ESC),ENGINE | 1 | 0 | 0 | 0 | 0 |
| SEAT BELTS,ENGINE | 1 | 0 | 0 | 0 | 0 |
| SEAT BELTS,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| SEAT BELTS,STRUCTURE | 1 | 0 | 0 | 0 | 0 |
| STEERING,ELECTRICAL SYSTEM | 1 | 0 | 0 | 0 | 0 |
| STEERING,ELECTRICAL SYSTEM,UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| STEERING,ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL | 1 | 1 | 0 | 0 | 0 |
| STEERING,POWER TRAIN,ELECTRICAL SYSTEM | 1 | 0 | 0 | 0 | 0 |
| STEERING,UNKNOWN OR OTHER | 1 | 1 | 0 | 1 | 0 |
| STRUCTURE,FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| STRUCTURE,VEHICLE SPEED CONTROL,ELECTRONIC STABILITY CONTROL (ESC) | 1 | 1 | 0 | 0 | 0 |
| SUSPENSION,AIR BAGS,UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| SUSPENSION,ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| SUSPENSION,ELECTRICAL SYSTEM,UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| VEHICLE SPEED CONTROL,UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| VISIBILITY,STRUCTURE | 1 | 0 | 0 | 0 | 0 |
| WHEELS,UNKNOWN OR OTHER | 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.