Automatic Emergency Braking Problems of Mercedes Benz C300

Filing complaint on behalf of my sister. She was driving on empty side street around 25mph and the car comes to an abrupt stop. Apparently part of the collision avoidance system, yet nothing in road, on road or in sight. If there was anyone behind her, they would have slammed into the rear end of her car.

See all problems of the 2023 Mercedes Benz C300 🔎.

The panoramic sunroof gets stuck on passenger side, and came off the rail on the passenger side as I was driving on the freeway.

See all problems of the 2016 Mercedes Benz C300 🔎.

While driving past, close proximity or even going 30-40mph on a local road or even 60-70 on a highway the break assist function will repeatedly beep, and most times it will stop my car for me. This occurs also, when there are no cars near me! it’s very sudden, and unpredictable. On more occasions than few, if I’m driving in the middle of a 3- lane road, and cars are stopping in the far right lane, or making a turn my break assist will malfunction and automatically break. Multiple occasions I feared that a car may rear-end me. It happens alot. Very scary. This has been occurring for more than 2 years.

The contact owns a 2019 mercedes-benz C300. The contact stated while driving normally one day, the vehicle randomly lost power steering. There were messages for the brake assist and the rear sensors displayed. The contact stated that he turned off and restarted the vehicle; however, the failure persisted. The vehicle was taken to the dealer, where it was diagnosed that the steering rack failed and needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA campaign number: 18v850000 (steering). The manufacturer was notified of the failure and informed the contact that they could not cover the repair because the VIN was not included in a recall. The failure mileage was approximately 52,000.

See all problems of the 2019 Mercedes Benz C300 🔎.

The mercedes just slams on the brakes for no reason. It's happened 3x and is very scary. According to internet posts this is a common problem because of collision assist malfunction.

While I was driving to work in a heavy rain my abs malfunction light came on in my car. I decided to take it to the mercedes-benz dealership in fresno. They said it was the abs module that needed to be replaced. After being in the shop for almost 3 weeks they said it was fixed. When I went to pick it up, the moment I turned it on the abs malfunction light came on again. I was told that it was okay to drive and they would have somebody come check it out at my work the next day. My car went back into the shop for another week and they could not figure out what was wrong with it. They did take pictures and the second time I took it in they noticed a bunch of water underneath the floorboard. By this time, I had lost confidence in them fixing my car the manager basically kicked me off the lot and told me never to go back again. So I continued to drive my car since I was told it was okay first time they fixed it. Short while later, I rear-ended another car. The abs system did not warn me that I was too close. When I took my car in to get the body work fixed I was also given a name of somebody who would be able to fix the electrical problems and insurance would pay for it. He was able to fix the abs system but could not find where the short was that controlled the passenger seat and the driver side back seat window and for the needle that tells me if my car is overheating. Nobody could figure out where the water had been coming from. It wasn't until recently when we just had a heavy storm that I noticed water leaking from inside the car through a seam. The running boards on the top of my car were not installed correctly so water seeps in there during rains and then it travels down underneath my floorboards and sits which was the cause of the shorts in my electrical system. My concern is that I don't know how bad other components of the car might be that one of the wires might at any of the wires might short while I'm driving now but unable to download receipts which I have.

See all problems of the 2018 Mercedes Benz C300 🔎.

The contact owns a 2023 mercedes-benz C300. The contact stated that while driving at various speeds, the forward collision avoidance system erroneously activated, causing the vehicle to abruptly stop in the middle of the road. The failure occurred on three separate occasions and each time no other vehicle or object was nearby to cause the forward collision avoidance system to become activated. The vehicle was taken to the local dealer who replaced sensors and recalibrated the forward collision avoidance system, but the failure persisted. The manufacturer was not notified of the failure. The failure mileage was 1,000.

- December 5, 2022, while driving on I-20 east in atlanta, georgia in the evening, at a speed of 15-20 mph my vehicle abruptly came to a stop in the middle of traffic with no warning and no action prompted by me while driving. There were vehicles positioned in front and behind my vehicle. Thankfully, the vehicle behind me was able to slam on its breaks to prevent colliding into my vehicle. - April 7, 2023, while driving in southwest atlanta in a residential area at a speed of 15-20 mph, while on the phone with one of my work colleagues, my vehicle abruptly stopped while driving past houses with no warning and no action prompted by me while driving. There was a vehicle positioned behind me that was able to slam on its breaks to prevent colliding into my vehicle. - may 5, 2023, while driving in a residential neighborhood on w wesley rd in atlanta at a speed of 10-15 mph in a construction zone, my vehicle again abruptly stopped with no warning. This time, the stop was much more forceful than previous incidents. - may 5, 2023 my car received the following prompt on my screen "your vehicle has detected a breakdown. Do you want to receive support from mercedes-benz roadside assistance" - mercedes assessed my car and reported the following: c111a00 radar sensor 1 is disrupted by interference from an external transmitter. " then, "note per owners manual, the system on the car cannot always take into account road, weather or traffic conditions///be aware of the limitations regarding the safe use of the these systems///" - the vehicle does not send an alert, forewarn, nor does it allow you to override an automatic emergency break - Mercedes Benz was flippant, dismissive and asked me to resume driving in an unsafe vehicle. I am filing this because they appear to have no regard for human life. I fear for my life and do not want to pass this burden on to someone else -in every instance described above, I contacted Mercedes Benz to make them aware.

Automatic emergency braking system & forward collision warning. I experienced a medical emergency and blacked out, hitting 3 cars. The incident happened the morning of Dec. 31, 2021 and my car still has not been evaluated by mercedes. I was taken to the er and spent 3 days in the hospital.

See all problems of the 2020 Mercedes Benz C300 🔎.

I bought a car that had an light accident and turns out to be missing the collision sensor in addition to bad battery that I had to change and had issues with recoding the airbags which are not working now.

Automatic emergency braking engages unnecessarily when driving under chicago's elevated train tracks and similar overhead structures. For example, when driving on wabash Ave in chicago's downtown loop, or on lower wacker drive, the automatic emergency braking engages when there is no risk of a collision, paradoxically creating a dangerous driving situation. The dealership is aware this happens in other similar vehicles, and when I brought the issue to their attention, suggested I merely changed routes.

Date: April 13, 2021. Model: C300 year : 2018 milage: 16,000. Time: 2. 30 p. M. Whether: sunny. Road condition: smooth problem: while driving on 405 south at speed of approx 65 to 70 mph for no apparent reason , the car uddenly , unexpectedly, and forcefully slammed on the brakes ( 65 to 0 mph) in matter of seconds, and locked its wheels. Left me stock on the fwy. The most scariest experience as you don't know what is going on or what is going to happen to . Luckily there were no vehicles in my close proximity or we could have died ! the warning signs were on " inoperative break assist system" . The cars force was so strong that not only jolted my head back and forth, it caused my computer to fly from the back seat and hit my head in the front seat. I had to replace the vehicles sensory radar about four months ago back in Nov 2020. I see that mbz has recalled its 2019 models and many other models ( software glitch that can slam the break unexpectedly). Why recall C300 2019 and newer models and not all models with this defective sensor system. . It will take them 30 minutes to reprogram each cars software, yet, are not doing it and endangering the public. What happened to me was a very scary incident and hope that you can get them to recall my vehicle . I am scared to drive it again as it could happen again!.