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Mercedes-Benz EQS 450Model year report

2023 Mercedes-Benz EQS 450 Problems

Complaints
35filed with NHTSA
Median mileage
6,000miles, 4 complaints with mileage
Recalls
7campaigns on record
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA crash rating
—no overall rating published
EPA fuel economy
85 MPGecombined, Electric RWD · 87 city / 83 hwy

Sources: NHTSA records for the 2023 Mercedes-Benz EQS 450 (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 35 consumer complaints for the 2023 Mercedes-Benz EQS 450. The part named most often is forward collision avoidance, with 20 complaints (57% of the total), followed by brakes (12) and electrical system (12). 4 of the complaints include a mileage, and 100% of those were filed for vehicles with under 50,000 miles; the median is 6,000 miles. Of all complaints, 2 involved a crash, 1 a fire, 6 an injury, according to the filers. NHTSA lists 7 recall campaigns and 269 technical service bulletins for this model year. Forward collision avoidance complaints overlap with 6 technical service bulletins filed under the same part. Brakes complaints overlap with 5 technical service bulletins filed under the same part.

Not compared (fewer than 3 comparable model years). Model years 2008–2023 of the same vehicle that have at least 25 complaints are compared, and a model needs at least 3 of them.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Also reported: Tires (1), Transmission and drivetrain (1).

Example complaints

Forward collision avoidance: “The vehicle pre collision automatically stops the car completely five times with no car or any objects in the front. I took the car to Mercedes dealership to see if they can find the issues, but they can’t. On 04/07/2024 I had my wife record while I’m driving and we got video of the car just completely hard breaking on its own with no cars in the front. I am worry that another vehicle will rear end me at higher speed when it does happen again.”

NHTSA complaint #11581634, filed 2024-04

Brakes: “On two separate occasions, while driving my 2023 Mercedes-Benz EQS 450 SUV, my vehicle abruptly came to a stop on the highway. The sudden and intense phantom braking caused me to experience whiplash on both occasions, even though there was no imminent collision threat. What was particularly concerning is that my car usually alerts me to any potential dangers and prompts me accordingly, but in these instances, it came to a halt unexpectedly. …”

NHTSA complaint #11567345, filed 2024-01

Electrical system: “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. …”

NHTSA complaint #11725988, filed 2026-03

Other or unknown: “I experienced a phantom braking incident yesterday in my 2023 EQS450+ SUV at 3:11 pm PST. Traveling at around 30 mph, no cars within 20 feet ahead or behind us, the car suddenly engaged the automatic brakes very hard with a loud beep but this condition lasted only a couple of seconds. The impact was hard enough to jolt all passengers in the car. The sound was as if something hit us from behind. Cruise control was not being used at that time. The car then continued to operate normally after that. …”

NHTSA complaint #11516386, filed 2023-04

Mileage when problems were reported

100% of the 4 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 4,000 and 8,000 miles.

75%0–1025%10–250%25–500%50–750%75–1000%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (4 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 6,000 miles.

Complaints by year filed

This model year is less than 4 years old, so a trend is not meaningful yet.

2022202313202420252026
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Fuel economy and running cost

EPA ratings for each 2023 Mercedes-Benz EQS 450 version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving); for electric versions it is the cost of electricity and the rating is in MPGe.

VersionEngineTransmissionCityHwyComb.Fuel / yr
EQS 450 Plus (SUV) RWDElectricsingle-speed878385 MPGe$900

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

See all 7 recalls for the 2023 Mercedes-Benz EQS 450 → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 269 on record; the latest 10 are shown.

See all 269 bulletins →

Other model years of the Mercedes-Benz EQS 450

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20245—3—96 MPGe—Too new
2023356,0007—85 MPGeNot compared (fewer than 3 comparable model years)Too new
20223517,25013—97 MPGeNot compared (fewer than 3 comparable model years)Rising

All Mercedes-Benz EQS 450 model years

Frequently asked questions

How many NHTSA complaints does the 2023 Mercedes-Benz EQS 450 have?

NHTSA recorded 35 consumer complaints for the 2023 Mercedes-Benz EQS 450 as of Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2023 Mercedes-Benz EQS 450 is reported most often?

Forward collision avoidance is named most often, in 20 complaints (57% of the total), followed by brakes with 12.

Has the 2023 Mercedes-Benz EQS 450 been recalled?

NHTSA lists 7 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

How efficient is the 2023 Mercedes-Benz EQS 450 according to the EPA?

The EPA rates the 2023 Mercedes-Benz EQS 450 (EQS 450 Plus (SUV), Electric) at 85 MPGe combined, 87 city and 83 highway, with an estimated annual electricity cost of $900 at 15,000 miles a year. Other battery and motor versions are rated differently.

At what mileage are problems with the 2023 Mercedes-Benz EQS 450 reported?

Among the 4 complaints that include a mileage, the median is 6,000 miles and the middle half falls between 4,000 and 8,000 miles; 100% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Fuel economy is from the EPA and DOE (fueleconomy.gov).

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.