There are 4 stored owner reports matching the brakes leading-label group for the 2015 BMW X4 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 4 of 4 matching reports.
Open the full vehicle complaint log (all categories)WHEN DRIVING THE BMW X4 THE VEHICLE WOULD BREAK ON ITS OWN, CAUSING A MAJOR SAFETY ISSUE WHEN DRIVING ON THE ROAD AND FREEWAY. THIS CAUSED ME TO GET OFF THE ROAD IMMEDIATELY WITH THE RISK OF BEING HIT FROM THE REAR. WHEN I TOOK THE VEHICLE TO THE DEALER FOR REPAIR THEY SAID IT WAS THE CALIPERS AND BRAKE PADS THAT NEEDED REPLACED. WHEN THIS REPAIR TOOK PLACE, I TOOK THE VEHICLE HOME AND THE NEXT MORNING THE SAME THING HAPPENED WITHIN 1 MILE OF DIVING THE VEHICLE. THE CAR STARTED BRAKING ON ITS OWN. I IMMEDIATELY TOOK THE VEHICLE TO THE DEALER, THEY KEPT THE CAR AND WERE ABLE TO RECREATE THE ISSUE. THE ISSUE WAS THE HYDRAULIC SYSTEM FOR THE BRAKES ABS SYSTEM NEEDED TO BE REPLACED. THIS REPAIR TOOK PLACE AFTER THE VEHICLE WAS AT THE DEALER FOR 6 WEEKS. (THERE WERE NO PARTS AVAILABLE IN THE U.S. OR GERMANY AND IT TOOK 6 WEEKS TO GET THE PART.) TODAY I RECEIVED MY VEHICLE BACK AND IT DROVE WITH NO BRAKING ISSUES. THERE WERE NO WARNING LAMPS, MESSAGES OR OTHER SYMPTOMS OF THE PROBLEM PRIOR TO THE FAILURE IN DECEMBER 2023.
AFTER EXITING HIGHWAY ONTO OFFRAMP, I APPLIED BRAKES WHICH DID NOT SLOW CAR SIGNIFICANTLY, REAPPLIED BRAKE HARD AND AGAIN CAR CAR WOULD NOT SLOW ADEQUATELY. BRAKING POWER SEEM TO BE APPROX 10% OF NORMAL. CAR BEGAN TO SHAKE AND ENGINE REVVED AS CAR FINALLY STOPPED IN MIDDLE OF INTERSECTION, NEAR MISS VS ONCOMING TRAFFIC.
BRAKES WERE UNRESPONSIVE WHEN TRYING TO SLOW FROM 35 MPH FOR STOP SIGN. COULD ONLY DEPRESS BRAKE PEDAL ABOUT A HALF-INCH, CAR ESSENTIALLY COASTED TO A STOP IN THE MIDDLE OF AN INTERSECTION CAUSING A NEAR MISS. CAR STARTED TO SHUDDER VIOLENTLY BEFORE COMING TO A STOP. THIS WAS THE FIRST OF 2 SERIOUS BRAKE FAILURES FOR THIS CAR.
THIS IS WAS ON HIGHWAY, NO TRUFFICK. ONE ACCIDENT HAPPENED BEFORE ME, WAS NO FLASH LIGHTS OR STOP LIGHTS, WHEN I FIND OUT WHAT THIS VEHICLE NOT MOVING, PRESSED FOOL BRAKE. IN 150 FEET OF FOOL BRAKE CAR DIDN'T STOP. I HIT THE CAR IN FRONT OF ME, THE ABS DIDN'T WORK DURING THE BRAKING, THE AIR BAGS DIDN'T PUMP OUT. THANKS GOD, NO BODY DIDN'T GET ANY SERIOUS INJURIES. THAT'S WAS SO SCARED.
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.