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What 66 owners told NHTSA about the 2023 Mercedes-benz Eqs SUV

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (66)Crash / fire / injury (12)Driver assistance (31)Electrical system (21)Brakes (18)Speed control (4)Body & structure (3)Fuel system (3)Visibility & wipers (2)Wheels (2)Airbags (1)Backup camera & sensors (1)

4 of 66 complaints match · Speed control · clear filters

Apr 17, 2026Electrical systemSpeed controlBrakesCrash2 injuries

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.

NHTSA ODI 11731921

Mar 25, 2024Electrical systemSpeed controlBrakes

SEE UPLOADED FILE SENT TO MERCEDES-BENZ. INCLUDES DESCRIPTION OF INCIDENT

NHTSA ODI 11579341

Sep 19, 2023Speed controlDriver assistanceCrash5 injuries

The automatic emergency braking failed.

NHTSA ODI 11545526

May 1, 2023Speed controlDriver assistance

We were driving locally, and the car stopped abruptly for no reason. There was no one and nothing in front of it, no animal around, and no reason for the stop. Had there been someone behind us, we would have had a big problem. We called the salesperson at the dealership only to learn that he had moved to Germany. We were told that another representative would return my call in about six minutes. No one called. A week later, we were on the highway and, also for no reason, the car slowed abruptly, and then resumed its speed. It happened a third time on a local street. We called the dealer and alerted the corporate headquarters but they did not respond. They do not seem to care.

NHTSA ODI 11519767

Working with the data? Download all 66 complaints as CSV · fetched from NHTSA July 19, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2023 Mercedes-benz Eqs SUV verdict →