Mercedes-Benz C300 abs comes on

Filed Nov 3, 2026 · Brakes, Transmission · 122,820 miles · NJ

The contact owns a 2020 Mercedes-Benz C-300. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed, and the brake pedal was abnormally difficult to depress. In addition, the contact became aware of an abnormal sound coming from the footwell. The dealer was contacted and made aware of the failure. The vehicle was taken to the dealer; however, the failure was not duplicated. The failure then reoccurred. The contact stated that while driving 35 MPH, the vehicle stalled and the vehicle lost motive power. In addition, several unknown warning lights illuminated, and the transmission shifted to neutral(N). The contact stated that a nearby independent mechanic assisted with removing the vehicle out of the roadway and onto the shoulder of the roadway. The independent mechanic attached a portable diagnostic scanner to the vehicle. The contact stated that while attempting to start the vehicle, the vehicle started. The vehicle was taken to an independent mechanic where it was diagnosed with ABS Module failure. The contact was informed that the ABS module needed to be replaced. The dealer was contacted and made aware of the failure. The manufacturer was contacted, and a case was filed. The failure mileage was approximately 122,820.

Filed May 28, 2025 · Tires · TX

In August 2024, a Mercedes-Benz dealership in Salisbury, MD installed the wrong type of rear tires on my vehicle. I was not informed they were mismatched or inappropriate for my vehicle. I later drove across the country with my infant child in the backseat, believing the tires were new and safe. On April 17, 2025, a certified tire shop in Texas (Discount Tire) inspected the tires and told me they were not suitable for my car and were already too old to be considered new — despite having been installed just 8 months earlier. They refused to buy them back or reinstall them due to the age and mismatch. Additionally, the dealership had earlier failed to correctly diagnose my ABS system, citing water damage but doing no further inspection. They also missed a major coolant leak and water pump failure, despite charging me for multiple diagnostics. Their negligence in both diagnosis and tire installation directly put me and my child at serious safety risk, especially while traveling long distance at highway speeds.

Filed May 24, 2024 · Brakes, Driver assistance · 84,000 miles · CA

The contact owns a 2011 Mercedes-Benz C300. The contact stated while driving at an undisclosed speed, he became aware that the brakes were not functioning properly. The contact had to pump the brake pedal to bring the vehicle to a complete stop. The cruise control, ABS, and traction control warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic; however, the vehicle was diagnosed with a failure with the electronic stabilizing program control unit. The vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 84,000.

Filed May 21, 2024 · Body, Driver assistance · CA · crash

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

Filed Aug 29, 2023 · Brakes, Engine · NY

My crankcase vent valve needs to be replaced also EBD traction abs module which alone cost over 1500 for part needs to be replaced

Filed Jun 10, 2022 · Body · 119,000 miles · MA

The contact's son owns a 2011 Mercedes-Benz C300. The contact stated while his son was reversing, he heard an abnormal noise. The contact stated that the ABS, the traction control, and another unknown warning light were illuminated. The driver called the contact and made him aware of the failure. The contact took the vehicle to an independent mechanic and was informed that the rear subframe was fractured. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was 119,000.

Filed May 16, 2022 · Suspension · VA

2013 Mercedes Benz C300 4dr AWD. Corrosion of Rear Sub-Frame (aka "Rear Axle Carrier" or "Suspension Cross Member") (New Part #: 207-350-97-02. Old Part #: 204-350-01-41 + other numbers). Car experienced erratic behavior under all braking scenarios. Extremely dangerous behavior under heavy breaking (65 mph to 25 mph). Life threatening severity of issue. 2 personal experiences. 1: Stopping at a yellow light in a quick fashion (55-0 mph, no abs required), car pulled hard to left and almost pulled me into curbing on left hand side. It felt like the rear end was on ice and was going to do a 180 partial spin. 2: Pulling off a highway into a turning lane and braked hard to slow down for right hand turn (65-15 mph). Car pulled about 8 feet left and almost put me back into full speed traffic. Same uncontrollable "on ice" feeling. I was on a road trip and had car towed to independent mechanic in the town I was visiting. He found holes throughout rear sub-frame member on drivers side and passenger side. Mounting points for suspension components were not structurally sound. He said I was lucky the control arm didn't break loose and puncture the gas tank. Corrosion was limited to sub-frame. The rest of car was "Nearly Perfect" in the words of the mechanic. Called Mercedes Corporate and they advised towing car to local MB dealer for inspection. MB Lancaster determined car was unsafe to drive. I am currently pursuing a good will repair case that has been initially denied. Parts are back ordered for 10+ weeks. I've called several dealers to source the part and nearly dealers have orders placed to Germany for these sub frames. Repair + alignment is approximately 4k USD. In 2018, Mercedes has issued Official Service Information Supplemental Notes (SI35.00-P0009A) to technicians to look for premature corrosion issues. This is free of charge replacement in UK and Germany already and a recall in Canada. US needs to catch up quick before death occurs.

Filed Dec 16, 2021 · Airbags, Electrical · TX

3 signal Signal light comes one saying abs, another SRS MALFUNCTION, also crushed control inoperable. Car will come one as normal next day car comes on no lights not 1 button work turn signals didn’t work then my car fan came on in the engines the also the when they the electric isn’t working i have to manually shift the gear

Filed May 22, 2016 · MD

I was driving off the giant food lot today sunday may 22 when a message appeared on the dashboard stating that the ebr, esp, and ABS collision prevention is inoperative. The car downshifted to below 10 miles. I live nearby so I drove the car slowly home and will take it to the dealer on monday may 23, 3016.

Filed Dec 7, 2015 · Acceleration · 22,000 miles · MI

Problem identical to one in wethersfield ct. Listed as vehicle speed control. Happened to both my wife and myself on two separate occasions. My wife was driving up the driveway and ABS light came on and vehicle shut offt along with brakes not working and steering wheel unable to turn.one hour later after she left the car I went out and it started and all warnig light were out. My incident occurred on a city street prior to coming to a stop sign ABS light came on vehicle had no brakes steering or power. Vehicle was travelling slow after stopping I restarted the vehicle and everything works. Not sure if vehicle covered by warraty purchase vehicle used with 15000 miles presently has 27000 miles on vehicle. Both times the vehicle was in motion with no brakes applied.