AI Damage2014 Mercedes-Benz C350: common problems
Owners of the 2014 Mercedes-Benz C350 filed 13 complaints with NHTSA, most often about air bags and structure. Details by component below, with sources.
Key figures
- Owner complaints
- 13
- involving a crash
- 1
What fails most often
- 1 Air bags 62% of all complaints
- 2 Structure 15% of all complaints
- 3 Electrical system 8% of all complaints
- 4 Powertrain 8% of all complaints
- 5 Service brakes 8% of all complaints
- 6 Steering 8% of all complaints
- 7 Vehicle speed control 8% of all complaints
- Air bags: 8 complaints (62% of all).
- Structure: 2 complaints (15% of all).
- Electrical system: 1 complaints (8% of all).
- Powertrain: 1 complaints (8% of all).
- Service brakes: 1 complaints (8% of all).
Symptoms owners describe
How many of the 13 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Air bags | 8 | 0 | 0 |
| Structure | 2 | 0 | 0 |
| Electrical system | 1 | 0 | 0 |
| Powertrain | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Steering | 1 | 0 | 0 |
| Vehicle speed control | 1 | 1 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
2014 mercedes benz c350. Consumer writes in regards to defective acceleration system. The consumer stated the cruise control malfunctioned causing a 4 car collision. The consumer stated the information in the police report was false and that the crash was inadequately investigated.
The contact stated that while the vehicle was parked, the front driverâs side interior door latch detached. The contact had to reach through the front driverâs side window to open the front driver's side door using the exterior door handle. No warning lights were illuminated. The vehicle remained at the residence.
The contact stated that while attempting to start the vehicle, the air bag and the driverâs side air bag malfunction service required warning light illuminated. A dealer was contacted. The vehicle was taken to a dealer where it was determined that the air bags needed to be replaced. The vehicle was not repaired.
the component that failed was the front stationary sunroof panel, and what failed on it was the adhesive which leads to it leaking water, and the potential of even falling off while driving 2. it could lead to falling off on the highway which could lead to damages to it or other vehicles around it 3. Unknown 4.
The shifts were not smooth but hard and the car was shuddering. Yes the vehicle is available for inspection. My safety and the safety of others were at risk due to the erratic behavior of the vehicle and how it affected my ability to focus on driving safely.
Brake fluid and Brake warning lights illuminated. The vehicle was taken to the local dealer where the service technician advised the brake lines to the rear tries were rusted and had to be replaced . The vehicle was repaired at a estimated cost of $2,900. The approximate failure mileage was 100,000.
I was notified in february 2019 that car needed the air bags replaced! Here a year and a half later they still don't have the parts! I think they are lieing to me!
I have an open recall for my airbags since january of 2019. I am shipping my vehicle through the military in 2 months but am filling the paperwork out now and one of the criteria is that the car cannot have any open recalls.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 9,846 of 36,659 model years in the NHTSA data (top 27% most complained about).
On average one model year of the C350 has 28 complaints (13 years in the data). This year has 13, below average.
What to check before buying
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
Other years of this model
Questions and answers
What are the most common problems with the 2014 Mercedes-Benz C350?
Owner complaints to NHTSA most often mention: air bags, structure, electrical system. Total complaints: 13. The most frequent symptoms in complaint texts: warning lights, check engine (23%), windows, sunroof (15%), door locks, latches, handles (8%).
How many service bulletins (TSB) were issued for the 2014 Mercedes-Benz C350?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2014 Mercedes-Benz C350 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2014 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.