2022 Mercedes-Benz EQS 450+ Brakes Problems

The contact owned a 2022 Mercedes Benz EQS 450. The contact stated that while driving approximately 15 MPH and approaching a parked vehicle on the side of the road, the contact depressed the brake pedal; however, the vehicle failed to stop. There was no warning light illuminated. Due to the brake failure, the front passenger’s side bumper crashed into the rear driver’s side bumper of the parked vehicle. The contact stated that the vehicle continued to maintain the same speed while depressing the brake pedal. The contact stated that after passing the first vehicle, his vehicle independently took a right turn and continued driving onto the sidewalk and onto the driveway of a home before crashing into the vehicle parked in the driveway which pushed the other vehicle into the garage door. The parked vehicle that was pushed into the garage door then struck the vehicle that was parked inside the garage. The contact stated that the brake pedal was being depressed throughout the failure; however, the vehicle only came to a stop after crashing into the parked vehicle in the driveway. The contact stated that the air bags had not deployed during the crash. The contact was taken to the hospital by ambulance and was treated for back pain, neck pain, and shoulders. A Police report was filed. The vehicle was initially towed by the Police Department and then to an undisclosed location before the contact and the Insurance Company had the vehicle towed to Millenium Auto Body which was an authorized Mercedes-Benz repair facility. The vehicle was deemed a total loss. The dealer and the manufacturer were notified of the failure and a case was filed with the manufacturer. The contact stated that a total of three vehicles and the garage door were damaged due to the brake failure. The contact stated that prior to the crash, the contact stated that the vehicle would intermittently stop abruptly. The contact stated that the forward sensor would perceive that there was an object in the road and activate the Forward Collision Avoidance syst

NHTSA ID

11652625

Incident

Mar 15, 2025

Mileage

100,000 mi

I reported last week about the brakes automatically coming on Tracking #11631195 It happened again today in reverse at 2-3 mph. Brakes activated and jolted me

NHTSA ID

11632010

Incident

Dec 22, 2024

Was driving 20 mph on a two lane road and my brakes came on for 1-2 seconds, it was sudden and jarred me forward

NHTSA ID

11631195

Incident

Oct 15, 2024

There is not a specific incident.The brakes are and have always been difficult to brake since I purchased the Mercedes EQS+ in 2022. I was told that all mercedes Benz electric cars were difficult to brake. It is generally recognized by the service representatives, the electric car technicians. Mercedes salesmen have had discussion about this issue in their weekly sales meetings. I have had a lot of safety recalls installed and had taken my car to a person who sells and repairs upper end cars including Mercedes Benz and BMW to see what he thought about how my car was driving. I was surprised when he focussed on the brakes. He said they were very dangerous and told me not to drive the car. I told him that in the beginning Mercedes service said the car was very heavy and I would get used to the brakes. My person said "he has a 20,000 lb motor home. When he applies the brakes they stop the motor home. "People drive trucks heavier than your car and when they apply the brakes the truck stops". So, I spoke again to the dealership. I asked the technician if he could call corporate and tell them of the general concern of the mercedes dealership employees about the brakes. He said NO. The only person who could make that happen was me and other drivers filing a complaint to NHTSA. He said if there were enough complaints Mercedes would design software an open a new safety recall that would enhance the effectiveness of the braking system. So, that's what I am doing. I tried to file a complaint before by phone and the lady totally misunderstood my complaint and her research not at all applicable. If it is true that all the electric mercedes benz cars have brakes like mine I hope Mercedes will address the issue before someone is hurt.The car is especially inefficient in speeds of 45mph and over. In slower speeds they are more manageable if not in stop and go traffic. I wonder how many accidents have actually been because of these brakes? Allow more room between cars.

NHTSA ID

11581510

Incident

Feb 3, 2022

The contact owns a 2022 Mercedes-Benz EQS450V. The contact stated that while driving at unknown speeds and depressing the brake pedal, the vehicle hesitated to respond. The contact stated that no warning lights were illuminated before the failure. The contact drove the vehicle to the dealer, where the failure could not be duplicated. Additionally, the dealer informed the contact that the braking system was operating as designed, per the regenerative braking setting activated. The vehicle was not diagnosed or repaired. The contact stated that the failure recurred several times. The manufacturer was notified of the failure. The failure mileage was unknown.

NHTSA ID

11578779

Incident

Feb 1, 2022

re-open it again with the Key Fob. Sometimes it takes a while for the car to unlock. I've been having issues charging the vehicle since Day 1 of purchased since the computer in the vehicle is not able to communicate from time to time with the Electrify America charging stations for plug and charge. I will need to call in to Electrify America charging stations so they can do an override to be able to charge the vehicle. I have to waste 2.5 hours every time I want to charge the vehicle which is usually 2-3 times a week. Another safety concern I have is that when driving around 45-50 mph and I am attempting to apply the brake softly to start slowing down due to heavy traffic, I have reported to the dealership that the brakes feel like it takes some time to brake and slips. I have to pump the brake 2 to 3 times so the brakes can start working right. The dealership stated that is possible that the ASB braking system might be working correctly but that they could not replicate the symptoms that I was describing. I have talked to Mercedes Benz USA and open up a claim and asked them to do a buyback of the the vehicle due to all of the safety issues concerns I have expressed. The Case Number I have open with right now is (Case #XXX) The case is being handled by Marry - Executive Referral Manager of Mercedes-Benz USA Customer Assistance Center. She can be reached at 800-367-6372. I also reported these concerns to NTHS of the state of California and I have an open case # XXX. I reported all of this issues to them on Thursday 12/7/2023 around 8:30am Pacific Time. NTHS confirmed that not only mercedes is experiencing this issues but other customers has reported this automatic phantom braking happening with other vehicles as well and is very unfortunate and extremely dangerous. I am concern with having to drive my vehicle in this conditions since an accident already occurred do to vehicle braking on its own and going reversed on its own while on drive. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATI

NHTSA ID

11561421

Incident

Dec 1, 2023

The contact owns a 2022 Mercedes-Benz EQS450V. The contact stated while driving approximately 35 MPH, and with no traffic around him, the vehicle inadvertently braked to a stop. The contact stated there was no other vehicle or pedestrian in front of his vehicle. The contact stated no warnings were illuminated. The contact stated he was able to continue with normal driving functions. The contact stated that the inadvertent braking failure occurred again when he was at a traffic light. The contact stated that as the light changed to green, he depressed the accelerator pedal the vehicle moved forward, and then stopped in the middle of the intersection. The contact stated that the vehicle behind him crashed into his rear bumper. The contact stated that he depressed the accelerator to move out of the intersection and the vehicle braked again and the shifter lever had independently shifted into reverse (R). The contact depressed the brake pedal and saw that the ABS, and a "brake malfunction" warning lights illuminated, also a symbol of a steering wheel with an "exclamation point" was observed. The contact stated that the damage to his rear bumper was only scratches and the other vehicle had minor scratches on the front bumper. The contact stated that both vehicles were drivable and the police were not called. Additionally, the contact stated that when he would depress the brake pedal the vehicle would not immediately begin to slow, the contact would have to pump the brake pedal to slow the vehicle. The contact drove the vehicle to a local dealer where the dealer reported that the inadvertent braking failure and other brake failure could not be duplicated. The vehicle had not been repaired. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 23,000.

NHTSA ID

11558923

Incident

Nov 11, 2022

Mileage

23,000 mi

on several occasion typically at lower speeds under 40 mph the vehicle suddenly and without warning activates the emergency braking system to a stop and releases even though there is no perceived danger by the driver. It has happened on 5-7 times since buying the vehicle. It has happened on a two lane road as well as four lane divided road, in rain and in dry weather.

NHTSA ID

11549592

Incident

Aug 1, 2023

I was driving my EQS on Thursday May 25th, 2023, at about 1:30 PM heading eastbound on the southern portion of the 202 Loop in Maricopa County AZ at a rate of about 75 MPH on a clear day with minimal traffic when without warning my vehicle locked up the brakes in an emergency stop. The tires left skid marks, seat belts tightened, and the screen in form to me flashed red warning signs. It happened so fast and without warning that when I realized we had come to a stop I look in the rear-view mirror and saw a truck headed towards my car, so I accelerated, and the car moved forward. Once off the freeway I drove the remaining 2 miles home along city streets at a low rate of speed and contacted Mercedes and Mercedes Benz of Gilbert. I was told that there was a defect int eh software pertaining to the EBS and that a software update would resolve it. I have the car back now but do not feel safe in it.

NHTSA ID

11524487

Incident

May 25, 2023

Driving about 40 MPH on a slight curve, with no imminent danger ahead, the car automatically applied the brakes full force. If there had been a vehicle behind me there probably would have been a collision.

NHTSA ID

11524347

Incident

Jan 27, 2023

The 2022 Mercedes EQS 450 has been an ongoing dangerous driving experience for me. I have been jolted and frightened over and over as the car's autonomous emergency system fully engages when driving as well as when it does not engage when I’m stopped at a light. I have expressed my safety concerns on numerous occasions to the management at the dealership. As I am writing this I see on your website, there is an unrepaired recall on this car with a remedy not yet available. In April, 2023, the car stalled and the messages below appeared on the dashboard: Attention Assist System Suspended Malfunction. Drive at max. 50 mph Stop Vehicle Level Too Low When the car was at the dealership, I was told, while it is a new model, they are trying to figure out the problem. I no longer want to be a guinea pig and endanger my life driving this car. In October, I backed into a low brick wall when the sensors did not alert me. At that time, I told the service department about the sudden braking and stalling. I had the damage repaired, costing $7000 and was told all was fine with the electrical panel. The dealership is now telling me after the car was there for 2 weeks, the car is fine. After being told this in October and with ongoing issues, I have no reason to expect it to be any different this time? I feel unsafe driving this car and do not want to jeopardize my life. Originally I was told Mercedes is aware of these issues and they would offer me a buy back and walk away. Now they are saying the car is fixed but Mercedes will offer me $5000 towards a trade-in and $70,000 for my car with less than 3000 miles. Offering me a substantially less amount of money than I paid for the car with on going safety issues is not acceptable.

NHTSA ID

11521912

Incident

Apr 10, 2023

On several occasions driving at 50+ mile per hour maintaining a safe distance and with no hazards around, the vehicle abruptly stops and the last time it skid damaging my rim. 1) It appears that the electronic braking system (EBS) is defective. 2) My safety as well as vehicles behind me are at risk of collision due to this problem. 3) I brought this vehicle to the dealership and they claimed that they worked on it and asked to come back if this issue happens again. 4) This vehicle has been taken to the dealership but I'm not sure if it was inspected by the manufacturer. 5) There were no warning lights, no messages or any symptoms which makes this nerve wrecking since it can happen at any moment. The first time this occured was in April 2022, then in July 2022, September 2022, and finally December 2022 at which point I brought the car to the dealership since I feel that I'm in danger as well as other motorists/pedestrians while this car is on the road.

NHTSA ID

11497454

Incident

Dec 2, 2022

On four instances my car thinks that there is an object in front of it and automatically initiates emergency breaking. It happened today TWICE at 67mph on a highway and I almost got smashed by semi behind me!!!

NHTSA ID

11477627

Incident

Aug 4, 2022

I was traveling at 75 mph along the freeway on a clear day around 2pm when all of a sudden the car's autonomous emergency braking system fully engaged and brought the car to a dead stop. there were no obstacles or impediments in front of the car or near the car at the time. It was terrifying and could have resulted in me seriously injured or killed if there had been any vehicles traveling behind me. This had happened twice previously with the car but in less dangerous conditions and at lower speeds, but this time it was much worse. It has caused me a lot of ongoing anxiety and mental anguish and I feel very emotionally distraught by the incident. This is a brand new Mercedes EQS vehicle that I have only had a few weeks.

NHTSA ID

11450809

Incident

Jan 13, 2022