general problems of the 2014 Mercedes Benz C250

I was coming off the freeway on 9/25/25, and when I pressed on the breaks they completely locked up and would not break at all. The car turned off, no warning lights nothing, and I continued to hit the break and the car would not stop, then all of a sudden it came to a stop almost colliding within inches of hitting the semi-truck in front of me. This is the second time in one year that this has happened to me, I have had the car checked out the first time last year immediately, and even paid to diagnose it, nothing, I had the brakes and rotors replaced last June of 2024 when this happened. Since then the car has only been in the dealership to get the car fully checked out mutltiple times within 2024, 2025 and repaired by mercedes dealership. On 9/25/25 this happened to me and it was a traumatic experiance when I pressed the break and the break got super hard and in a locked position and would not come to a stop, there was no warning lights, no engine lights, nothing. (increased braking effort, and potentially I was inches of collision risk. I had the car towed to the nearest shop and was told this is a collapsed break booster vacuum pump, and possibly the hose and lines and possibly further problems but they would need to replace the vacuum pump first. After I looked to see if there was a recall on the vacuum pumps in that model on google and it says the following; google- 2014 mercedes C250 recall on vacuum pump a-premium vacuum pump compatible with select mercedes . . . Yes, there was a recall on certain mercedes-benz vehicles, including some 2014 C250 models, related to a defective brake booster vacuum hose. The recall involves hoses that may delaminate over time, leading to a loss of vacuum, increased braking effort, and potentially a collision risk. To check if your specific 2014 C250 is affected by this recall, you should contact an authorized mercedes-benz dealer or visit the mercedes-benz USA website to check for open recalls for your vehicle's VIN.

With no prior warning indicator on braking issues with my 2014 C250, I travelled from ormond beach FL to savannah GA, on I-95 with one stop in kingsland GA. I still had no warning indicator on breaking issues as I took the off-ramp to savannah. A failure occurred with the braking system as I exited I-95, with no vehicle warning indicator shown before or after I came to a stop. I had to exert maximum pressure on the brake to stop, requiring an expansion clear length of off-ramp to do so. An elderly, weaker person or even my wife wouldn’t have had the strength to stop over the distance I stopped it in. Luckily there was no vehicles stopping in front of me, otherwise I would have hit them at high speed. At savannah mercedes they found a faulty vacuum pump, & like me were perplexed that no prior warning indicator showed up on my vehicle. This issue has obviously caused me great concern & indicates an inherent dangerous & life-threatening condition with my, & I assume other 2014 c-250’s, if not other years and models. If this dangerous failure had occurred on I-95 as traffic slowed to a stop, I would have run into the vehicle in front of me & my wife & could have been killed. More menacingly, it would most probably have been reported that I wasn’t paying attention & it was my fault rather that a catastrophic dangerous manufacturer failure with my vehicle. It sadly seems to me that this scenario may actually have happened with some mb vehicles and the driver/s are not around to say.

The contact owns a 2014 mercedes-benz C250. The contact stated while driving approximately 75 - 80 mph, the brakes failed, and the brake pedal was stiff while depressed. The vehicle was towed to the dealer and diagnosed with brake vacuum pump failure. The brake vacuum pump needed to be replaced. The vehicle was not repaired and remained at the dealer. The brake vacuum pump was previously replaced by an independent mechanic for the recurring failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 85,535. The VIN was unavailable.

Driving on the freeway I-5 southbound in orange county, California when my brakes failed. 1) there was no warning in advance of this episode, no squeaky brakes, no leaking of oil or fluid. 2) car had been routinely repaired and maintained by the mercedes dealership. 3)an independent mercedes mechanic.

The contact owns a 2014 mercedes-benz C250. The contact stated that while her daughter was driving at various speeds, she depressed the brake pedal but it hesitated to respond. As a result, excessive force was applied to the brake pedal in order to slow down the vehicle. Due to the failure, the driver lost control of the vehicle and crashed into the barrier wall and the metal fence. No air bags were deployed. The contact's daughter sustained a fractured nose, lip laceration, and other unknown facial injuries due to the driver hitting the steering wheel during the impact. No medical attention was contacted yet but will be in the future. A police report was filed. The police transferred the vehicle from the crash site to a tow yard where the police are awaiting the insurance adjustor. Damages were to the front end. The manufacturer nor the dealer was contacted about the failure. The failure mileage was approximate 60,000.

While slowing to approach a parking space, the car sped forward and jump the curve crashing into a storefront. No one injured. Stepping on the brakes did not stop or even slow down the car.

Takata recall headlight, modules component controlling the headlight, and the seal. Moist gets in the headlight and damages the light. Had to place on both headlights and the modules units in the back of headlights that controls all lights. Was in motion both times. Dashboard indicated check all lights; it was correct. Both needed serviced.