Most common 2023 Mercedes-Benz EQS450+ problems
Share of the 18 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Mercedes-Benz EQS450+ complaints by model year
Best EQS450+ years: 2024. Compare all years →
2023 Mercedes-Benz EQS450+ recalls (3)
Back over prevention › Warnings › External/pedestrian alert
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2025 S-Class, EQE SUV, EQE, EQS SUV and EQS vehicles. Please see the recall report for a complete list of models. Software in the Acoustic Vehicle Alerting System (AVAS) may cause an incorrect external pedestrian warning sound while reversing.
Remedy: Dealers will update the AVAS software, free of charge. Owner notification letters were mailed August 1, 2025. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2025070005.
Electrical system › Wiring › Fuses and circuit breakers
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 C-Class, E-Class, S-Class, SL, GLC, EQE SUV, EQE, EQS SUV, and EQS vehicles that were incorrectly repaired under recall 24V-115. An incorrect fuse box that was not designed for the vehicle may have been installed.
Remedy: Dealers will inspect and replace the main fuse boxes, free of charge. Owner notification letters were mailed June 6, 2025. Owners may contact MBUSA customer service at 1-800-367-6372.
Air bags › Critical fasteners
Mercedes-Benz USA, LLC (MBUSA) is recalling a certain 2023 EQS 450+ vehicle. The mounting brackets near the roof may have sharp edges that can damage the side-curtain air bag during deployment.
Remedy: Dealers will inspect and if necessary, replace the window airbags, and mounting brackets, free of charge. Owner notification letters were mailed February 7, 2025.
What 2023 Mercedes-Benz EQS450+ owners say
Driver assistance
The contact leases a 2023 Mercedes-Benz EQS450. While driving at 35 MPH, the vehicle unexpectedly stopped with no other vehicle or object nearby. The vehicle was taken to the dealer on several occasions; however, the cause of the failure could not be determined. The contact was informed that it was a common failure and that other vehicle owners had sustained injuries due to the failure. Additionally, the contact stated that while driving 10-15 MPH and approaching a red traffic light, the failure recurred, almost causing the vehicle to be rear-ended. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 8,000.
I own a 2023 Mercedes-Benz EQS 450+. While driving, my vehicle has repeatedly applied the brakes suddenly and forcefully even though there was no vehicle, person, or obstacle in front of me. It feels as though the vehicle incorrectly detects an imminent collision and activates the automatic emergency braking system when there is nothing to hit. This has happened multiple times and is especially dangerous at freeway speeds because the sudden braking creates a risk of being rear-ended and puts the safety of me and my passengers at risk. The vehicle has also displayed intermittent dashboard warnings indicating that Active Brake Assist is not working. During the most recent incident, my mother-in-law was a passenger. The sudden braking jolted her forcefully enough that she experienced body pain afterward. …
Electrical system
While making a left turn at low speed, I applied the brakes, but the vehicle did not respond as expected and instead appeared to drift, surge, or accelerate forward. The vehicle struck a fire hydrant and a bus stop pole before crashing into a tree. Airbags deployed and both occupants sustained injuries. I suspect a possible malfunction involving braking, propulsion, electrical, or speed control systems. No final cause has been determined. The vehicle should still be available for inspection. Mercedes-Benz USA has opened a case regarding this incident.
I am reporting a serious safety issue with my 2023 Mercedes-Benz EQS SUV. On multiple occasions, the vehicle has suddenly lost power and completely stopped while driving on the freeway without warning. During these incidents, a red warning symbol appeared on the dashboard (a red turtle icon), indicating a critical malfunction. These failures created extremely dangerous situations, as the vehicle lost the ability to maintain normal driving speed in active freeway traffic. At the time of these incidents, my three children were in the vehicle, which significantly increased the risk of a serious accident. This issue has occurred multiple times, suggesting a serious and recurring defect. The sudden loss of power combined with dashboard warning signals presents a major safety hazard and could lead to severe injury or fatal accidents. …
Brakes
While making a left turn at low speed, I applied the brakes, but the vehicle did not respond as expected and instead appeared to drift, surge, or accelerate forward. The vehicle struck a fire hydrant and a bus stop pole before crashing into a tree. Airbags deployed and both occupants sustained injuries. I suspect a possible malfunction involving braking, propulsion, electrical, or speed control systems. No final cause has been determined. The vehicle should still be available for inspection. Mercedes-Benz USA has opened a case regarding this incident.
I was stopped at a stop sign and when the light turn green I pressed the accelerator to move forward unfortunately, the vehicle hard braked for no reason. At first, I thought someone hit me from behind since there was no one in front of me but that was not the case. The braking was so violent that it caused my neck to snap back and forth, which caused the back of my head to hit the seat head support. I was going no faster then 10 mph but not slower then 5mph. In turn, the vehicle is available for inspection. My safety was at risk because I had no control or indicator that the braking was going to automatically brake on its own. The problem has not been reproduced or confirmed by the dealer or independent service center because the incident happened today (Sunday) therefore, I plan on making an appointment as soon as possible to see if they can identify any defects. …
2023 Mercedes-Benz EQS450+ engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined | Range |
|---|---|---|---|---|
| Electric | Single-speed | RWD | 87 / 83 / 85 MPGe | 305 mi |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2023 Mercedes-Benz EQS450+ a good car?
There isn't enough complaint history for the EQS450+ to compare model years reliably. So far owners have filed 18 complaints with NHTSA.
What is the most common problem with the 2023 Mercedes-Benz EQS450+?
The driver assistance — 11 complaints, 61% of all complaints for this model year, most often about automatic emergency braking. Next are the electrical system (7) and brakes (6).
How many recalls does the 2023 Mercedes-Benz EQS450+ have?
There are 3 recalls for the 2023 Mercedes-Benz EQS450+, the most recent from June 5, 2025 (external/pedestrian alert). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Mercedes-Benz EQS450+?
The best years by complaints, compared at the same age, are 2024. See the full Mercedes-Benz EQS450+ years comparison.
At what mileage do 2023 Mercedes-Benz EQS450+ problems happen?
The median mileage reported in complaints is about 8,000 miles; 100% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.