on 6/20/23 I was driving this vehicle on the 5 freeway north bound exit 102 in Washington. i found myself travelling at 60mph just moving over to the middle lane of traffic. i needed to slow the vehicle a little and pushing down on brakes I found there was no reaction from the braking system. Making a quick decision I moved over to the emergency lane where I came to a stop. There were no warning signs of the issue. I had the vehicle towed to my Mercedes Benz dealership where I had the car service the day before on 6/19/23 where nothing was noted on this problem. After inspection from the technician at the dealership it was found that the brake vacuum pump was no longer working. Which technician said had caused the issue and he had never experienced this issue before. i am bringing this to your attention due to it could have caused a fatal accident to with me and other people on the freeway.

- Portland, OR, USA

Brakes failed to deploy, randomly, during recent trip; VERY DANGEROUS; pressed brakes, would NOT engage and car kept moving and would not stop; pushed car into P (Park) to stop moving; just completed a 225 mi trip from Chicago to Detroit Metro area traveling at speeds between 65-70 mph with no issue, all service on vehicle is and has been conducted via Mercedes authorized dealers, had vehicle in for service on morning of trip for overview and safety check prior to leaving and no known issues; after coming off freeway engaged brakes upon pulling into neighborhood and vehicle brakes failed completely-stopped engaging; NO NOTIFICATION; NO INDICATOR LIGHTS OR READ OUT OF ISSUES related to brakes was indicated on dashboard; had we been on the freeway at the time of incident coming off an exit ramp at high speed we would have suffered a grave result, brakes failed completely. THIS IS A DANGER and UNACCEPTABLE for this manufacturer; vehicle has been towed to dealership, is not drivable, and is currently being assessed. This has been widely reported on other sites, regarding this specific vehicle, Mercedes C250, my model year is 2012; I researched this issue, yesterday, to determine what could possibly have gone wrong as vehicle was not leaking fluids and NO indication of issues during recent diagnostics and safety check two days prior. Not having sufficient braking capability with NO warning or indication is DANGEROUS, a liability to manufacturer and should be investigated immediately. Thank you.

- Grosse Pointe Farms, MI, USA

At about 40,000 miles the parking brake began sticking and was difficult to release. This was replaced under warranty. It began happening again. I spoke to the Mercedes usa and they said I would have O pay to replace it. I believe this part is defective.

- Temecula, CA, USA

I was driving on the highway at about 60mph in the left hand lane. I was about 7 car lengths from the car in front of me as I had just moved into that lane to move to the ramp to move off the highway. The vehicle in front of me braked, and was going at a lower speed. I tried to slow down and my car did not slow. I pressed my brake to the floor and my car still would not stop. I was able to pull to the shoulder and the car finally came to a stop close to the ramp, I thought it was an isolated incident except I saw on a website, others had the same problem.

- Washington, DC, USA

Takata recall, not action taken in a eficcient time brakes 2017 elec stability control 2013 and 2017

- San Juan, PR, USA

Brake failure. Driving vehicle on highway with a 75 mph speed limit. When I attempted to brake vehicle, I found I did not have any power brakes. Brake pedal was hard. Pressing the brake pedal as hard as I could did not do anything to slow down my vehicle. I did not have any ability to slow down vehicle. To avoid a collision, I put the vehicle in neutral, and down shifted gears. No alarms, or visual indicators came on to indicate a problem existed. Car towed to the Mercedes Benz authorized dealership I have always had my car serviced at. Brake box sitting behind the motor had broke. No sensirs or fault us associated with the brake box. Visual check of the brake box is. It on any maintenance checklist.

- Granbury, TX, USA

The contact owns a 2012 Mercedes Benz C250. The contact stated that while driving 65 mph, he attempted to engage the brakes but it failed to stop the vehicle. The vehicle was taken to the dealer where the technician diagnosed that the brake vacuum was defective and needed to be replaced. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 25,000 and the current mileage was 30,000.

- Hercules, CA, USA