There are 2 stored owner reports matching the brakes leading-label group for the 2018 BMW X3 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)The contact owns a 2018 BMW X3. The contact stated that while driving at an undisclosed speed, the brake pedal went to the floorboard while depressed; however, the brakes failed to stop the vehicle. The contact was able to steer the vehicle into a gas station before the vehicle came to a complete stop. Car’s computer failed to indicate there were any hazardous issues nor dangerous concerns. The vehicle was towed to the dealer where it was diagnosed with brake master cylinder failure. The vehicle was not repaired and remained at the dealer. The manufacturer was made aware of the failure and advised the contact to file a complaint with the NHTSA. The failure mileage was approximately 50,000.
TRAVELING EAST BOUND THROUGH AN ALLEY IN ORDER TO MAKE A RIGHT TURN ONTO A SOUTH-NORTH RUNNING CITY STREET. BRAKE WAS FIRST APPLIED APPROXIMATELY TWO-CAR LENGTH (DISTANCE WISE) BEFORE THE INTERSECTION. I NOTICED THE VEHICLE WAS ACTING FUNNY: INSTEAD OF SLOWLY COMING TO A STOP, IT PICKED UP SPEED. I FELT AS IF SOMETHING WAS DISENGAGED AND THE CAR WAS FLYING OFF WITHOUT GRAVITY. I HIT THE BRAKE AGAIN AS THE CAR WAS DASHING INTO THE INTERSECTION. THE VEHICLE WAS AGAIN ACCELERATED ON ITS OWN, COMPLETELY OUT OF CONTROL. AT THAT MOMENT A TRASH TRUCK WAS TRAVELING SOUTH BOUND. BOTH THE DRIVER AND THE PASSENGER IN THE TRASH TRUCK WERE LOOKING AT ME IN DISBELIEF (THAT MY VEHICLE WAS DASHING OUT INTO THE MAIN ROAD). WE WERE EYEBALLED AT EACH OTHER, APPROXIMATELY AT AN 45 DEGREE ANGLE, FOR SEVERAL SECONDS, BEFORE THE TWO CARS WERE COLLIDED. THE OUTCOME COULD HAVE BEEN FETAL IF THE TIME AND ANGLES OF THE COLLISION WERE OFF BY A SPLIT OF SECOND. MY VEHICLE WAS TOTALED THOUGH.
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.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.