There are 6 owner-reported engine complaints for the 2004 BMW X5in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* THE CONTACT OWNS A 2004 BMW X5. WHILE DRIVING 55 MPH ON THE FREEWAY, THE VEHICLE JERKED SEVERELY. SUDDENLY, THE ENGINE POWERED DOWN IN THE MIDDLE OF TRAFFIC. THE CONTACT WAS ABLE TO PULL THE VEHICLE OVER SAFELY ONTO THE SHOULDER. A MESSAGE INDICATING "FAIL SAFE" APPEARED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TOWED TO THE CONTACT'S HOME. THE VEHICLE WAS LATER TAKEN TO RAY CATENA BMW (543 TARRYTOWN RD, WHITE PLAINS, NY 10607, (914) 761-5555) WHERE IT WAS DIAGNOSED THAT A NEW ENGINE AND VALVE PUMP NEEDED TO BE INSTALLED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND DID NOT ASSIST. THE FAILURE MILEAGE WAS 120,000.
MY X5 HAS BEEN A FAIRLY RELIABLE VEHICLE WITH SOME QUIRKINESS ALONG THE WAY. I HAD A "CROSSOVER PIPE" TO START LEAKING COOLANT. THE THING TO LOOK FOR IS IF YOU OPEN YOUR HOOD, AND LOOK IN THE CENTER OF THE ENGINE (FROM THE FRONT), THERE IS A SMALL HOLE. COOLANT WILL COLLECT AND POUR OUT OF THAT HOLE ONTO THE GROUND. THE FIX THROUGH BMW IS ANYWHERE FROM $9000-$10,000.00; IF YOU ARE GOING TO ALLOW BMW TO REPLACE THE PART AND LABOR CHARGES WITH SOME PARTS. WHAT HAPPENS IS OVER TIME THE SEALS GO BACK IN THIS PART, AND THE ONLY WAY TO GET TO IT IS TO OPEN YOUR ENTIRE ENGINE, TO REPLACE THE PIPE. I WENT TO A LOCAL CAR SHOP THAT SPECIALIZES IN FOREIGN VEHICLE REPAIR NAMED KELLY MOSS MOTOR SPORTS NEAR MADISON WISCONSIN, AND THEY WERE ABLE TO DO THIS JOB FOR UNDER $3000.00. THEY DID FANTASTIC WORK, AND MY VEHICLE HAS NOT LEAKED SINCE! THIS PART WILL EVENTUALLY GO BAD, ESPECIALLY IF YOU LIVE IN A CLIMATE WITH CONSTANT HOT TEMPS OR EXTREME WEATHER THAT GOES FROM HOT TO COLD (BOTH DESTROY THE RUBBER GASKETS IN THIS PIPE). I AM ATTACHING A LINK FOR THOSE WHO WANT TO SEE WHAT THE PIPE LOOKS LIKE. HTTPS://WWW.AGACOOLANTPIPE.COM/PRODUCT/N62-COOLANT-PIPE. *TR
TL* THE CONTACT OWNS A 2004 BMW X5. THE CONTACT STATED THAT WHILE DRIVING 55 MPH, THE VEHICLE STALLED AND THE TRANS FAIL SAFE PROGRAM WARNING LIGHT ILLUMINATED ON THE INSTRUMENT PANEL. THE CONTACT PULLED THE VEHICLE OVER AND RESTARTED, AS IT FUNCTIONED PROPERLY. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION WHERE THEY STATED THAT THEY COULD NOT DETERMINE THE CAUSE OF FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 120,000.
TL* THE CONTACT OWNS A 2004 BMW X5. THE CONTACT STATED THAT BRUNING FUMES WERE EMITTED INTO THE VEHICLE THROUGH THE AIR VENTS. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSE THAT THE DIAPHRAGM BROKE CAUSING AN OIL LEAKAGE INTO THE ENGINE AND AS A RESULT, THE CCV VALVE NEEDED TO BE REPAIRED. ALSO, THE MECHANIC STATED THAT THE VEHICLE WAS NOT INCLUDED ON ANY RECALLS. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE ARE OF THE FAILURE WHO REFERRED HIM TO NHTSA. THE FAILURE MILEAGE WAS 75,000.
TL*THE CONTACT OWNS A 2004 BMW X5. WHILE DRIVING APPROXIMATELY 35 MPH THE BATTERY, 4X4, AND TRANS FAIL SAFE LIGHTS ILLUMINATED ON THE DASHBOARD. THE WINDSHIELD WIPERS TURNED ON AND THE VEHICLE STALLED. ONCE THE VEHICLE STALLED THE BRAKES NO LONGER FUNCTIONED CAUSING THE CONTACT TO COAST IN ORDER TO STOP THE VEHICLE. THE VEHICLE WOULD NOT RESTART SO IT WAS TOWED TO AN AUTHORIZED DEALER WHERE THE FAILURE WAS IN THE PROCESS OF BEING DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 102,000.
NHTSA RECALL CAMPAIGN 04V344000 CONCERNING ENGINE CONTROL MODULE/ENGINE STALLING. AFTER HAVING THE NEW DIGITAL ENGINE MANAGEMENT CONTROL UNIT INSTALLED THE VEHICLE STALLED. VEHICLE WAS TAKEN TO THE DEALER NUMEROUS TIMES, BUT MECHANIC COULD NOT DUPLICATE THE PROBLEM. WHILE THE VEHICLE WAS PARKED THE DRIVER NOTICED FLUID LEAKING FROM UNDERNEATH HE VEHICLE. IT WAS TAKEN TO THE DEALER FOR INSPECTION, AND MECHANIC REPLACED THE FUEL HOSE. HOWEVER, THE PROBLEM RECURRED. *AK
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