2023 Mercedes-Benz EQE 350+ Problems

My Mercedes-Benz EQE has an intermittent but dangerous brake failure. When braking lightly and then needing to brake harder, the brake pedal becomes soft and fades, sinking further with almost no increase in braking power. The vehicle continues moving forward even when pressing the pedal harder. I must quickly release the pedal and press it again to regain braking. This creates a serious risk of crashing, especially at low speeds or in traffic. The issue is happening more frequently. Mercedes-Benz of Encino told me “everything is good,” but the issue continues. Another dealership (Mercedes Keys European) refused to even inspect the vehicle. A loaner EQE I drove for several days did NOT have this issue, confirming my vehicle’s braking system is not normal. This is a major safety defect, and I am requesting NHTSA to investigate.

September 8th, 2024 @ approximately 3pm My Mercedes EQE 350+ accelerated to a high speed when the front tire touched a curb. The car ran over the curb and into the parking lot. I was able to steer the car but the brakes didn't work. The car kept going through a stop sign and into the intersection. Luckily there were no cars in the intersection and I finally thought to turn the car off. It then stopped. The whole rubber covering over the battery was destroyed from the rocks on the curb. The battery was severely damaged also. The car was at the dealership from Friday Sept 13th until around Oct 9th. They finished their testing and sent the info to corporate Mercedes on Wed Sept. 18th. I finally heard back from Mercedes corporate on Oct 3rd, 2024. They said that they didn't find any malfunctions. During this waiting period I was pressured by the Mercedes dealership to file an Insurance Claim. I said I wasn't filing a claim until I heard back from Mercedes Corporate. There have been several cases online where the same issue has occurred by other Mercedes owners. One was almost exactly the same as mine. The only difference was that the car stopped when the tires were flattened. I have been driving for 50 years and have never experienced anything like this. My nephew was in the car with me and I repeatedly said to him the brakes aren't working. The car was a write off. I had to file an insurance claim.

LEMON LAW NOTICE: [XXX]– [2023 CPO Mercedes EQE350+] – Repeated Defects- Vehicle Safety feautures non functional I request that the TxDMV Enforcement Division investigate the deceptive trade and inspection practices of Mercedes-Benz of North Houston, and compel the dealership to cover the full physical repair and component costs required to bring this vehicle back into manufacturer safety compliance at my local servicing facility. I hold formal video diagnostic evidence provided by a certified technician confirming these facts and will provide it immediately upon request by an investigator. To: AutoNation Corporate Customer Care / Executive Escalations From: [XXX] Date: June 20, 2026 Subject: Escalation: Misrepresentation and Mandatory CPO Inspection Failure – Mercedes-Benz of North Houston Vehicle & Purchase Details: Vehicle: 2023 Mercedes-Benz EQE 350+ VIN: [XXX] Purchase Date: [XXX] Selling Dealership: Mercedes-Benz of North Houston (An AutoNation Dealership) Servicing Dealership: Mercedes-Benz of West Houston Statement of Issue I am writing to formally escalate a serious matter regarding a breach of the Mercedes-Benz Certified Pre-Owned (CPO) standards and a misrepresentation of vehicle condition by Mercedes-Benz of North Houston. I am seeking corporate intervention to resolve a high-cost repair stemming entirely from an undisclosed, out-of-specification pre-existing condition present at the time of sale. Chronology of Events [XXX] (Purchase & Test Drive): I purchased the vehicle as a Certified Pre-Owned unit from Mercedes-Benz of North Houston. During the initial test drive, I explicitly noted and pointed out an active issue with the radar/sensor system to the sales team. Delayed Delivery: Due to this sensor issue, the dealership delayed delivery of the vehicle for approximately 2 to 3 weeks to allegedly resolve the problem. I took delivery in December 2025 once the sensors appeared to be functi INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Description of Incident: On January 19, 2026, this vehicle was involved in a severe frontal collision. Despite significant structural damage resulting in a total loss (GEICO Claim: 0445628610101151), multiple critical safety systems failed to activate. Specific System Failures: SRS (Airbags): None of the 10 airbags deployed despite a high-energy impact that met deployment thresholds. Active Brake Assist: The system failed to monitor traffic or apply autonomous braking to reduce impact severity. Steering/Stability Assist: No steering intervention or collision warnings were provided during the pre-crash phase. GUARD 360: Collision detection monitoring failed to log the event. Safety Risk: The failure of the airbags to deploy during a high-energy impact represents a catastrophic failure of safety systems mandated by FMVSS 208 and directly increased the risk of occupant injury. Warning Symptoms: The dashboard was clear of all safety faults. No SRS or restraint system warning lights were present prior to the incident. Inspection Status: As of January 22, 2026, the vehicle is being held at Mercedes-Benz of Stevens Creek (San Jose, CA). It is awaiting a formal technical inspection from Mercedes-Benz Corporate. The vehicle is available for NHTSA inspection.

Driving almost 60 mph, car shuddered and went to 20 mph then 10 mph in seconds. Drove on the shoulder, only 650 miles since I leased the car. Second time has happened in four weeks.

THIS IS A SUDDEN ACCELATION INCIDENT in reverse with a brake incident. On January 11, 2024 shortly after 12:00 p.m., I was leaving my home and reversing out of my garage. As the tail of the car went slightly beyond the garage door, it stopped abruptly as if detecting something in the path of the car behind it. As I was looking at the rear camera to see why it stopped and what was in the path and contemplating whether I should get out and go see in person (as I did not clearly see anything in the rear camera) the car started moving again at what felt like a high-speed, backwards as I was still in reverse. I tried to brake but the brakes did not work. So, I started turning so as not to go directly into the home of the neighbor across the street. I turned sharply enough that the car went diagonally into my next-door neighbor's yard to the left of our home. The car continued to move in reverse and I kept steering to avoid the car hitting my neighbor's home. The car hit and knocked over the neighbor's in-ground basketball on the opposite side of the driveway. I believe the car slowed a bit after that impact but kept going in reverse heading back into the street in front of my home. Still steering and hitting the brakes, I remember the car spinning in the street and then had somewhat of an elliptical pattern and was headed back across the yard to my same neighbors home but hit the parkway tree in front of my home and stopped with that impact. Believe electrical failure. Brakes didn't work. Airbag did not deploy. Many sudden acceleration cases end in injury and death. Thankful no children out since middle of day. MBUSA (only) is investigating. Attempted independent review but told that unable because of proprietary software. 5 weeks in and no response to investigation status.

This vehicle is extremely unsafe to drive and will cause an accident. I am constantly having to fight the steering as the car constantly fights the direction I wish to turn or maneuver. In addition several times I tried to break to slow the vehicle and the brakes did not allow me to engage them. I have been driving since 1980s. If something is not done to get this vehicle off the road quickly someone will get hurt.

Description of Incident: On January 19, 2026, this vehicle was involved in a severe frontal collision. Despite significant structural damage resulting in a total loss (GEICO Claim: 0445628610101151), multiple critical safety systems failed to activate. Specific System Failures: SRS (Airbags): None of the 10 airbags deployed despite a high-energy impact that met deployment thresholds. Active Brake Assist: The system failed to monitor traffic or apply autonomous braking to reduce impact severity. Steering/Stability Assist: No steering intervention or collision warnings were provided during the pre-crash phase. GUARD 360: Collision detection monitoring failed to log the event. Safety Risk: The failure of the airbags to deploy during a high-energy impact represents a catastrophic failure of safety systems mandated by FMVSS 208 and directly increased the risk of occupant injury. Warning Symptoms: The dashboard was clear of all safety faults. No SRS or restraint system warning lights were present prior to the incident. Inspection Status: As of January 22, 2026, the vehicle is being held at Mercedes-Benz of Stevens Creek (San Jose, CA). It is awaiting a formal technical inspection from Mercedes-Benz Corporate. The vehicle is available for NHTSA inspection.

The vehicle has had repeated failures related to the air conditioning system and abnormal battery drain when the heating system is used. The vehicle has been taken to the dealership four times for the same issue and has spent more than two months in total at the dealership for repairs. The technicians have indicated that they have not been able to properly repair the problem. The vehicle continues to have unresolved defects affecting its normal operation and reliability. The vehicle has been at the dealer again from 3/26/2026 to present.

As i was driving on the interstate, i heard a gunshot-like explosion and the sunroof glass broke. Glass shards fell into the car. I had to slow down to 30 mph and exit the interstate. There was no obvious road debris or cars around me at the time of the incident. I drove the car to the dealership where it is for repair

Driving almost 60 mph, car shuddered and went to 20 mph then 10 mph in seconds. Drove on the shoulder, only 650 miles since I leased the car. Second time has happened in four weeks.