repaired · 2025 Q4
Body: roof and pillars
Risk. A detached roof panel can become a road hazard, increasing the risk of a crash.
2019 Mercedes-Benz C300Problems, recalls & complaints
NHTSA has logged 70 owner complaints about the 2019 Mercedes-Benz C300, most often about the engine. It is covered by 17 safety recalls, and for recall 23V-854 the manufacturer reports only 41% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through November 6, 2026. Updated daily. Photo: Calreyn88, CC BY-SA 4.0.
Complaints by system
Where the 2019 Mercedes-Benz C300 has problems
70 complaints grouped by the system owners reported.
18Engine
13Electrical system1 crash/fire/injury
8Fuel/propulsion system1 crash/fire/injury
7Structure1 crash/fire/injury
6Service brakes2 crash/fire/injury
6Power train
5Seat belts
5Steering
5Fuel system, gasoline
169 other systems2 crash/fire/injury
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Engine | 18 | 0 |
| Electrical system | 13 | 1 |
| Fuel/propulsion system | 8 | 1 |
| Structure | 7 | 1 |
| Service brakes | 6 | 2 |
| Power train | 6 | 0 |
| Seat belts | 5 | 0 |
| Steering | 5 | 0 |
| Fuel system, gasoline | 5 | 0 |
| 9 other systems | 16 | 2 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
17 recalls
2019 Mercedes-Benz C300 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
repaired · 2026 Q2
Communication: auto crash notification
Risk. A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency…
repaired · 2024 Q2
Back over prevention: display function
Risk. An inoperable rearview camera display reduces the driver's rear view, increasing the risk of a crash.
repaired · 2024 Q1
Fuel injection system: fuel rail
Risk. A fuel leak in the presence of an ignition source, such as hot engine or exhaust components, can increase the risk of a fire.
Show 13 more recalls
repaired · 2023 Q4
Exterior lighting: headlights
Risk. Incorrectly adjusted headlights may reduce visibility, increasing the risk of a crash.
repaired · 2023 Q3
Body: roof and pillars
Risk. The adhesive bonding of the front panel might deteriorate, possibly causing the front panel to detach from the vehicle and become a road hazard, increasing the…
repaired · 2023 Q3
Communication
Risk. A disabled eCall system would prevent a vehicle occupant from contacting emergency services through the call center in an emergency, potentially delaying…
repaired · 2023 Q4
Communication: auto crash notification
Risk. Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
repaired · 2022 Q4
Front: retractor
Risk. If the seat belt does not fully retract, the occupant may find the operation of the seat belt inconvenient and not wear it, increasing the risk of injury in…
repaired · 2022 Q3
Latches/locks/linkages
Risk. In the event of a rear-end crash, the center console lid may open, increasing the risk of injury to occupants.
repaired · 2022 Q2
Electrical system: software
Risk. Without the audible tone and blinking warning light to remind the front seat occupants that their seat belts are not buckled, they may forget to buckle their…
repaired · 2021 Q1
Electrical system: 12v/24v/48v battery
Risk. Loss of power from the battery can impair post-crash functions, such as communicating with emergency services and activating hazard lights.
repaired · 2020 Q4
Sensing system: radar
Risk. An impaired Active Brake Assist may not automatically apply partial or full braking as expected, increasing the risk of a crash.
repaired · 2020 Q2
Electrical system: software
Risk. Driving the vehicle with the ESP system deactivated could increase the risk of a crash.
repaired · 2022 Q2
Rack and pinion: rack
Risk. A car that cannot be properly steered has an increased risk of a crash.
repaired · 2020 Q2
Seat belts
Risk. If the seat belt tensioning does not activate in the event of a crash, it can increase the risk of injury.
repaired · 2020 Q3
Electrical system: software
Risk. An engine stall can increase the risk of a crash.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Mercedes-Benz.
Best & worst years
2019 vs. every other C300 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the C300 median. How we score
'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25'26
- Avoid
- Caution
- Solid
- Best
- Not rated
1 investigation
NHTSA defect investigations
Federal investigations that included the 2019 Mercedes-Benz C300, and the recalls they led to.
- Front Roof Panel DetachmentLed to recall 21V-197
In owners' words
What C300 owners report
Recent engine complaints filed with NHTSA, shortened. Personal details are removed.
A 55,000 miles vehicle - escalated to a $10,000. repairs - Coolant Leakage and SOLENOID related issues - the mental duress and stress from a unreasonable cost and seriousness of repaire requireements as the car got just out of the warranty period.
The M264 2.0L engine suffered a catastrophic internal failure. While making a left turn at an intersection, the vehicle suddenly shut off and stalled, leaving the car stranded in active traffic and creating an immediate safety risk. Prior to the shutdown, the check engine light came on accompanied…
The vehicle experienced a severe safety issue involving a sudden loss of motive power in active traffic. 1. Initial Symptoms & Diagnosis: Recently, the Check Engine Light illuminated. Although the light turned off before my scheduled appointment, I still brought the vehicle to an authorized…
Own a 2019 C300?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.