Problems · by component

2004 MINI Cooper power train problems

28 owner complaints to NHTSA about the 2004 MINI Cooper cite power train, 5% of all 529 complaints for this model year.

Complaints
28
5% of all complaints
Crashes
0
Reported by owners
Fires
1
Reported by owners
Injuries
0
Reported by owners
01 —Owner reports

What owners say about the power train

Verbatim from NHTSA complaints, newest first
“2004 MINI COOPER PURCHASED NEW APROX 62 MILES ON IT AND THE CVT TRANSMISSION IS GONE & THERE WAS A CLASS ACTION LAWSUIT FOR THE REPLACEMENT OF THIS, I WAS NEVER NOTIFIED AND WANT THIS FIXED AT NO COST TO ME. AT APROX. 50 TO 60 MPH THE CAR ENGINES GOES WAY BEYOND THE PROPER RPM.”
Owner complaint to NHTSAFiled Nov 24, 2018Power train, Fuel/propulsion systemODI 11153472
“I WAS DRIVING AROUND 40 MILES PER HOUR AND THE CAR ABRUPTLY SLOWED DOWN THEN SPED UP WITHOUT ANY WARNING, IF ANOTHER CAR WAS BEHIND ME, IT WOULD HAVE CAUSED SOME SERIOUS DAMAGE. NOW MY CAR WOULDN'T SHIFT SHIFT OUT OF FIRST GEAR. I WAS TOLD BY MY MECHANIC THAT THE CVT TRANSMISSION IS GONE. AFTER REACHING OUT TO MINI USA, THEY TOLD ME THEY HAVEN'T HAD ANY PROBLEM WITH THIS TRANSMISSION AND IT'S PASS THE WARRANTY DATE. IF THE FOLKS AT MINI USA HAD BEEN HONEST WITH ME I COULD HAVE MADE THE DEADLINE FOR A SETTLEMENT PERTAINING TO THE SAME PROBLEM THEY CLAIMED THEY HAD NO IDEA ABOUT. THIS PRODUCT NEED TO BE RECALLED! AFTER DOING EXTENSIVE RESEARCH THE CVT TRANSMISSION HAVE HAD PROBLEMS ALL ALONG AND THE COMPANY HAVE BEEN SETTLING CLAIMS FOR QUITE SOME TIME. WHY ARE THEY ALLOWED TO RUN HARD WORKING FOLKS INTO DEATH BECAUSE THEY KNOW MOST OF US CAN'T AND WOULDN'T PURSUE THIS MATTER. IT WILL COST ME 6500.00 FOR THE PART AND ANOTHER $2200 FOR LABOR, THE CAR IS NOW VALUED AT $5500.00. IT THERE SOMETHING WRONG WITH THIS?”
Owner complaint to NHTSAFiled Nov 3, 2015Steering, Power trainODI 10788053
“ON MY 2004 MINI COOPER, BASE, WITH CVT, IT THE RPMS JUMP TO ~3800 BETWEEN 50-65 MPH. WHEN I ACCELERATE TO ABOVE 65, THE RPMS RETURN TO THE NORMAL RANGE. UPON SLOWING DOWN, THE RPMS THEN JUMP AGAIN BETWEEN 50-65. *TR”
Owner complaint to NHTSAFiled Jan 19, 2015Power trainODI 10676500
“1) AUTOMATIC TRANSMISSION BUSTED. CAR STALLED DANGEROUSLY ON THE HIGHWAY. 2) POWER STEERING PUMP BUSTED. STEERING LOCKED DANGEROUSLY ON THE ROAD AND COULD NOT BE MOVED. *TR”
Owner complaint to NHTSAFiled Mar 6, 2014Steering, Power train, EngineODI 10567652
“WE PURCHASED A NEW 2004 MINI-COOPER R50 AND PAID EXTRA FOR INSTALLATION OF A CVT TRANSMISSION. THE CVT ' (SPORT MODE)' FAILED IN 2010, JUST 2 YEARS AFTER ITS WARRANTY EXPIRED AND WITH ONLY 35,147 MILES DRIVEN. WE WERE TOLD THAT IT COULD COST BETWEEN $2,000 AND $9,000 TO REPAIR/REPLACE THE SPORT MODE' FUNCTION, AND SINCE THE AUTOMATIC TRANSMISSION IS STILL OPERATING, WE DECIDED TO AVOID THE UNCERTAINTY OF COSTLY REPAIRS AND MAKE SURE NO ONE ELSE DRIVES THIS VEHICLE. SINCE THEN, WE HAVE LEARNED OF OTHER PREMATURE CVT FAILURES AND THREE CLASS-ACTION LAWSUITS REGARDING THIS TRANSMISSION: AARONS V. BMW OF NORTH AMERICA, LLC [XXX],BONOMO V. BMW[XXX], AND BOURNE-MILLER V. BMW[XXX]. PREMATURE 'SPORT-MODE' FAILURE CAN CAUSE PERMANENT DAMAGE TO A $9,000 TRANSMISSION WITH DEADLY CONSEQUENCES ON U.S. HIGHWAYS AT HIGH SPEEDS. CLASS ACTION LAWSUITS DO NOT ADDRESS THIS PROBLEM, AND WE HAVE 'OPTED-OUT' OF PARTICIPATION IN THEM. PLEASE INVESTIGATE THE EXTENT OF PREMATURE CVT FAILURES IN THE MINI-COOPER AND ISSUE A RECALL APPROPRIATE TO REMEDY THIS POTENTIALLY DEADLY DEFECT. PLEASE LET US KNOW IF MORE INFORMATION OR DOCUMENTATION IS REQUIRED. UNDER PENALTIES OF PERJURY IN THE…”
Owner complaint to NHTSAFiled Dec 19, 2013Power trainODI 10556643
“I HAVE A 2004 MINI COOPER IT HAS RECENTLY REACHED 87000 MILES AND THE CVT TRANSMISSION IS FAILING. NORMALLY YOU CHANGE YOUR TRANSMISSION FUEL EVERY 25,000 TO 50,000 MILES. MY MODEL MINI COOPER HATCHBACK DOES NOT COME WITH A RESERVOIR TO CHANGE SUCH A FUEL IT WAS A GUARANTEE BY THE MANUFACTURER THAT THESE MODELS WOULD NOT NEED SUCH A SERVICE AND THAT THE TRANSMISSION WOULD BE FINE THROUGHOUT THE LIFETIME OF THE CAR. WHAT WORRIES ME IS THAT I HAVE NOT BEEN ABLE TO DRIVE MY MINI OVER 50MPH DUE TO THE INCREASE OF RPM'S. WITHOUT THE SPEED INCREASE IT IS NOT SAFE FOR ME TO DRIVE ON THE HIGHWAYS AS I NORMALLY WOULD. A CVT TRANSMISSION REPLACEMENT COULD COST THOUSANDS. BUT MORE IMPORTANTLY I'M WORRIED ABOUT MY SAFETY ITS POSSIBLE THAT MY TRANSMISSION COULD FAIL WHILE MOBILE. THATS MY MAIN CONCERN. I RECENTLY READ THAT THERE HAS BEEN A LAWSUIT ADDRESSING THESE ISSUES. IT IS BMW'S DUE DILIGENCE TO ADDRESS THIS MATTER SEEING HOW THOUSANDS OF CITIZENS ARE OPERATING THIS MACHINERY ON A DAILY BASIS. *TR”
Owner complaint to NHTSAFiled Nov 12, 2013Power train, Vehicle speed control, EngineODI 10551846

Showing 6 of 28 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 29, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Other 2004 Cooper problem areas