There are 4 owner-reported driver assist & adas complaints for the 2017 Mercedes-Benz E-Classin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The automatic breaking assist is malfunctioning most of the time it just gives me a warning on the dash that it is limited a few times it has bumped the brakes briefly like it was sensing something in front of the car the perimeter sensors are malfunctioning as well like it’s sensing something all around the car very close then those sensors completely shut off and don’t work again until the car is shut off and started again
The contact owned a 2017 Mercedes-Benz E300W. The contact stated while driving approximately 55mph when the contact heard a loud noise coming from the vehicle causing him to lose control of the vehicle and crash into another vehicle. The contact stated the crash avoidance system had failed to activate. The contact stated no warning lights were illuminated. The contact sustained arm bruises but did not seek medical treatment. The other vehicle contained 2 people but the contact does not know what injuries they had sustained. The vehicle was towed to a tow lot and a police report was filed. The vehicle was destroyed. The manufacturer was not informed of the failure. The failure mileage was approximately 47,000.
The contact owns a 2017 Mercedes-Benz E300. The contact stated while driving 40 MPH, the vehicle independently came to an abrupt stop with a beeping sound coming from the vehicle. The contact also stated that an unknown red light began to flash when the failure occurred. The contact stated that there were no vehicles or objects around the vehicle at the time of the failure. After experiencing the failure, the vehicle quickly resumed normal operation. The dealer nor the manufacturer had yet to be notified of the failure. The vehicle had yet to be diagnosed or repaired for the failure. The failure mileage was approximately 32,000.
TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ E300. THE CONTACT STATED THAT THE ACTIVE BRAKING ASSIST DRIVING ASSISTANCE PACKAGE ACTIVATED SEVERAL TIMES WITHOUT WARNING WHILE DRIVING OVER BRIDGES. THE FAILURE CAUSED THE VEHICLE TO STOP ABRUPTLY SEVERAL TIMES. THE DEALER (MERCEDES-BENZ OF ATHENS, 4735 ATLANTA HIGHWAY, BLDG. A, ATHENS, GA 30606, (706) 549-6585) WAS NOTIFIED, BUT COULD NOT DUPLICATE THE FAILURE BECAUSE FAILURE SITE IS IN BLUFFTON, S.C. THE FAILURE CONTINUED TO OCCUR. THE VEHICLE WAS THEN TAKEN TO MERCEDES-BENZ OF HILTON HEAD (155 FORDING ISLAND RD, BLUFFTON, SC 29910, (843) 815-0300). THE ASSOCIATES FROM THE DEALER TEST DROVE THE VEHICLE WHILE ONE OF THEM RECORDED A VIDEO OF THE SYSTEM ENGAGING. THE SECOND DEALER INDICATED THAT A FORM WOULD NEED TO BE SIGNED TO DEACTIVATE THE SYSTEM; HOWEVER, THE CONTACT WANTED TO ENSURE THAT THE SYSTEM FUNCTIONED PROPERLY. A TECHNICIAN WAS SENT FROM THE MANUFACTURER WHO INDICATED THAT THE ACTIVE BRAKING ASSIST DRIVING ASSISTANCE PACKAGE DETECTED AN OBSTACLE AND WAS ENGAGING WHEN THERE WAS NO OBSTACLE. THE MANUFACTURER PROVIDED NO REMEDY AND STATED THAT THE SYSTEM WAS PERFORMING AS DESIGNED. THE FAILURE MILEAGE WAS NOT AVAILABLE. *TT
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026