repaired · 2020 Q2
Exterior lighting: headlights
Risk. If the low beam headlight is not properly adjusted, the driver may have reduced visibility, increasing the risk of a crash.
2018 Mercedes-Benz C 300 4MATICProblems, recalls & complaints
NHTSA has logged 13 owner complaints about the 2018 Mercedes-Benz C 300 4MATIC, most often about the structure. It is covered by 3 safety recalls, and for recall 18V-608 the manufacturer reports only 85% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through November 6, 2026. Updated daily.
Complaints by system
Where the 2018 Mercedes-Benz C 300 4MATIC has problems
13 complaints grouped by the system owners reported.
4Structure
2Engine
1Seat belts
1Steering
1Suspension
1Air bags
1Visibility/wiper
1Communication
1Electrical system
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Structure | 4 | 0 |
| Engine | 2 | 0 |
| Seat belts | 1 | 0 |
| Steering | 1 | 0 |
| Suspension | 1 | 0 |
| Air bags | 1 | 0 |
| Visibility/wiper | 1 | 0 |
| Communication | 1 | 0 |
| Electrical system | 1 | 0 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
3 recalls
2018 Mercedes-Benz C 300 4MATIC 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 · 2020 Q2
Sensor: occupant classification
Risk. If the passenger air bag is incorrectly displayed as 'ON' when it is not, a front seat passenger may be unaware that the air bag will not deploy in the event…
repaired · 2020 Q1
Visibility: glass, side/rear
Risk. If the window detaches from the vehicle, it can become a road hazard, increasing 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
2018 vs. every other C 300 4MATIC 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 C 300 4MATIC median. How we score
'18'21'22'23'24'25'26
- Avoid
- Caution
- Solid
- Best
- Not rated
1 investigation
NHTSA defect investigations
Federal investigations that included the 2018 Mercedes-Benz C 300 4MATIC, and the recalls they led to.
- Desiccated Air Bag Inflator RuptureOpen
In owners' words
What C 300 4MATIC owners report
Recent structure complaints filed with NHTSA, shortened. Personal details are removed.
I have begun noticing symptoms of the adhesive failing, such as excessive wind noise coming from the front roof area and visible gaps/separation between the panel and the vehicle body. This poses a severe safety risk, as the panel could completely detach while driving and become a high-speed road…
2018 Mercedes C300 - a hole rusted through the rear subframe causing structural safety concerns. This car has been routinely washed weekly and the frame should not have rusted through within only 8 years. This also led to a large repair bill.
****Please force Merces to recall all VIN's!******* NHTSA ID Number: 23V854000 1) Front glass roof panel came off while driving the car on the freeway. I didn't see or hear anything. When I got out of the car, I saw the entire piece has come off. This has caused my sunroof to malfunction, and it…
Own a 2018 C 300 4MATIC?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.