2023 Mercedes-Benz C300 problems
NHTSA has received 36 complaints about the 2023 Mercedes-Benz C300, and 39% of them involve forward collision avoidance. Next are brakes (14%) and electrical system (14%).
At a glance
- Complaints
- 36 filed with NHTSA
- Most reported
- Forward collision avoidance 39% of complaints
- Crashes and fires
- 3 and 0
- Injuries and deaths
- 1 and 0
Source: NHTSA owner complaints
Where the complaints are
Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.
What the data shows
Safety-related details: 3 complaints mention a crash; 1 injury reported.
Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2023 ranks 15th most-complained-about out of 15 model years of the Mercedes-Benz C300 with enough data (36 complaints in that window). It is also covered by 9 safety recall campaigns.
What owners wrote
A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.
The contact owns a 2023 Mercedes C300. The contact stated that while traveling over a pedestrian crosswalk, the emergency braking mode was engaged. The accelerator pedal was applied but the vehicle failed to accelerate. The vehicle went into restricted mode. A Hyundai Elantra crashed into the rear of the vehicle. The driver in the Hyundai stated that the brake lights were not illuminated. There was no air bag deployment or fire. A police report was filed.
On 2/17/24 the vehicle was parked in front of my house. There is a slight grade. The vehicle had been parked for approximately 1 hour when my neighbor called me to tell me that the vehicle had rolled down the hill and into his storage building. The vehicle rolled on its own. I have video evidence that no one was in or around the car at the time of this occurrence. I also, have 2 eyewitnesses who can corroborate this story. Due to safety concerns, I immediately returned the vehicle to Mercedes.
The contact owns a 2023 Mercedes-Benz C300. The contact stated while reversing, the check engine warning light illuminated and the vehicle lost motive power, stalled and shutoff. The contact was able to restart the vehicle, but had the vehicle towed to the dealer. The dealer stated that no cause for the failure was found but updated the software. The failure reoccurred. The vehicle was taken back to the dealer and the contact was informed that the water pump needed to be replaced. The vehicle was not repaired.
The contact owns a 2023 Mercedes-Benz C300. The contact stated that on occasion while driving at various speeds, the vehicle unexpectedly stopped without the brake pedal being depressed. There were no warning lights illuminated. The vehicle was diagnosed twice by the local dealer, and the contact was advised that the Forward Collision Avoidance sensors needed to be recalibrated; however, the failure persisted.