Mercedes-Benz EQS Common Problems

ELECTRICAL SYSTEM

Owners report several recurring electrical issues with the 2023 Mercedes-Benz EQS, primarily involving charging faults, unexpected shutdowns, and software malfunctions. Complaints frequently mention charging errors, including thermal events at charging interfaces and signs of melting at the charging port, with one instance resulting in a fire. Multiple owners describe sudden vehicle shutdowns accompanied by battery malfunction warnings, sometimes leading to complete immobilization and entrapment of occupants. These issues often occur at varying mileages, with some reports indicating problems as early as 16,000 miles. Safety implications are significant, with reports of unintended braking, abrupt stops, and one noted injury due to sudden deceleration, posing risks of collisions and entrapment.

Severity signals: 0 crash, 1 fire, 1 injury reports

UNKNOWN OR OTHER

Owners of the 2023 Mercedes-Benz EQS frequently report issues with the vehicle's sunroof glass spontaneously shattering, often described as a loud explosion followed by shattered glass. Additionally, several complaints highlight instances of phantom braking, where the car suddenly stops without obstacles present, leading to potential safety risks such as loss of control and crash incidents. Some owners also mention problems with the door handles retracting unexpectedly and issues with audio and communication systems. These problems are reported across various mileage ranges, often shortly after purchase, and can result in significant safety implications, including a crash and injuries.

Severity signals: 1 crash, 0 fire, 3 injury reports

SERVICE BRAKES

Owners of the 2022 Mercedes-Benz EQS frequently report issues with the service brakes, including sudden and unprompted activation of the emergency braking system. Common symptoms include the brakes engaging without warning at various speeds, sometimes resulting in abrupt stops that have led to crashes and injuries. Several complaints describe the brakes as unresponsive or requiring pumping to function properly, particularly at higher speeds. Reports often note these issues occurring within the first 100,000 miles of vehicle use. Safety implications are significant, with multiple crashes and injuries reported, suggesting potential risks for loss of control.

Severity signals: 3 crash, 0 fire, 4 injury reports

SERVICE BRAKES

Owners of the 2023 Mercedes-Benz EQS frequently report issues with sudden, unintended braking, often described as "phantom braking," where the vehicle abruptly stops without any apparent obstacle or warning. These incidents are noted both on highways and city streets, with speeds ranging from 5 to 60 mph, and often result in a violent stop that can cause injuries, including whiplash. Complaints also highlight instances of brake failure, where the vehicle fails to stop as expected, sometimes leading to crashes, with two reports involving injuries. The issues typically occur at low mileages, with one report noting problems as early as 1,000 miles. These braking malfunctions can pose significant safety risks, including the potential for rear-end collisions or loss of control, which prospective buyers should consider.

Severity signals: 2 crash, 0 fire, 4 injury reports

FORWARD COLLISION AVOIDANCE

Owners report frequent issues with the forward collision avoidance system in the 2023 Mercedes-Benz EQS, primarily involving unexpected and abrupt braking, often referred to as "phantom braking." Complaints frequently mention the system engaging without any apparent obstacles or vehicles nearby, leading to sudden stops and seat belt tightening. This issue is noted across various driving conditions, including at highway speeds and during low-speed maneuvers, with occurrences reported as early as 200 miles. Safety implications are highlighted, with one injury reported and several near-miss incidents of potential rear-end collisions. These problems persist despite dealership visits and software updates, suggesting a pattern of unresolved system malfunctions.

Severity signals: 0 crash, 0 fire, 1 injury reports

FORWARD COLLISION AVOIDANCE

Owners report that the 2022 Mercedes-Benz EQS experiences unintended activation of the Forward Collision Avoidance system, leading to sudden and unexpected braking. Complaints frequently mention the vehicle braking without any apparent obstacles or vehicles ahead, with several incidents occurring at various speeds, including highway and city driving. The issue is reported across a range of mileages, with some owners experiencing problems as early as 7,000 miles. Safety implications are significant, as sudden braking in traffic could lead to rear-end collisions, though no crashes are reported. Buyers should be aware that while software updates have been suggested as a remedy, multiple owners indicate that the problem persists despite attempted repairs.

ELECTRICAL SYSTEM

Owners report frequent issues with the 2022 Mercedes-Benz EQS's electrical system, particularly involving unexpected activation of the emergency braking system. Complaints frequently mention the vehicle abruptly stopping without warning at various speeds, sometimes resulting in damage, such as rim damage, or near-collisions, especially on highways. This issue is reported at mileages ranging from 500 to over 1,000 miles. Additionally, one owner describes a complete electrical failure leading to a crash, with malfunctioning brakes and steering. Another owner expresses concern over potential fire risk due to battery manufacturer uncertainty, referencing a related incident with another vehicle model. These reports highlight significant safety implications, including loss of control and collision risks, which prospective buyers should consider.

Severity signals: 1 crash, 1 fire, 0 injury reports

STRUCTURE

Owners report issues with the 2024 Mercedes-Benz EQS related to the trunk and sunroof. Complaints frequently mention the trunk opening and closing without warning, even when the vehicle is parked and locked, leading to one incident where a child was pinned and another where it almost injured two individuals. Additionally, multiple owners describe the sunroof glass shattering spontaneously while driving, with one instance resulting in injuries from imploded glass shards. These issues suggest potential safety risks, particularly concerning unexpected trunk movements and sunroof failures while the vehicle is in operation. No specific mileage or timeline patterns emerge from the complaints.

Severity signals: 0 crash, 0 fire, 3 injury reports