The contact owns a 2024 Mercedes-Benz E450. The contact stated while driving at an undisclosed speed, the "Active Emergency Assistance Imperative" message was displayed. The vehicle was taken to the dealer, who determined that a software update was required. The vehicle was repaired, but the failure reoccurred. The vehicle was taken back to the dealer, who then diagnosed a failure with the power steering control module (PSCM). The vehicle was repaired, but the failure reoccurred. The vehicle was then taken back to the dealer, who replaced the steering wheel. The vehicle was repaired, but the failure reoccurred. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 50.
NHTSA ODI 11596505