MINI COOPER S US · model year

2009 MINI COOPER S US

13 NHTSA complaints for this specific cohort.

NHTSA overall rating

Not crash-tested

New Car Assessment Program

The 2009MINICOOPER S US carries 13 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.

Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2009 COOPER S US is engine with 4 filings, followed by fuel system, gasoline (1) and electrical system (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.

NHTSA currently has 9 investigation files overlapping the 2009 COOPER S US. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.

13
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths

Total Complaints

13 filings

Crashes Reported

0 reports

Source

NHTSA ODI

Federal complaints database

Complaints vs. fleet median (215)

At or below the fleet median complaint volume.

Complaints by Component

ComponentCount
ENGINE4
FUEL SYSTEM, GASOLINE1
ELECTRICAL SYSTEM1
ENGINE AND ENGINE COOLING:ENGINE1
TIRES1
POWER TRAIN1
AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER1
AIR BAGS1
SEAT BELTS1
AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION1

Recent Complaints

20181226AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER

THE SENSOR ON THE PASSENGER SEAT SEAMS FAULTY. THE LIGHTS FOR THE AIR BAG AND SEAT BELT KEEPS COMING ON WHETHER OR NOT THERE IS A PASSENGER IN THE SEAT. THE MECHANIC SAID THE ENTIRE SEAT NEEDS TO BE REPLACED. THIS IS A SAFETY ISSUE AS I DON'T KNOW WHETHER OR NOT THE AIRBAGS WOULD DEPLOY IN THE CASE OF ACCIDENT.

Mileage: 64,406

20181226AIR BAGS

THE SENSOR ON THE PASSENGER SEAT SEAMS FAULTY. THE LIGHTS FOR THE AIR BAG AND SEAT BELT KEEPS COMING ON WHETHER OR NOT THERE IS A PASSENGER IN THE SEAT. THE MECHANIC SAID THE ENTIRE SEAT NEEDS TO BE REPLACED. THIS IS A SAFETY ISSUE AS I DON'T KNOW WHETHER OR NOT THE AIRBAGS WOULD DEPLOY IN THE CASE OF ACCIDENT.

Mileage: 64,406

20181226SEAT BELTS

THE SENSOR ON THE PASSENGER SEAT SEAMS FAULTY. THE LIGHTS FOR THE AIR BAG AND SEAT BELT KEEPS COMING ON WHETHER OR NOT THERE IS A PASSENGER IN THE SEAT. THE MECHANIC SAID THE ENTIRE SEAT NEEDS TO BE REPLACED. THIS IS A SAFETY ISSUE AS I DON'T KNOW WHETHER OR NOT THE AIRBAGS WOULD DEPLOY IN THE CASE OF ACCIDENT.

Mileage: 64,406

20181226AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION

THE SENSOR ON THE PASSENGER SEAT SEAMS FAULTY. THE LIGHTS FOR THE AIR BAG AND SEAT BELT KEEPS COMING ON WHETHER OR NOT THERE IS A PASSENGER IN THE SEAT. THE MECHANIC SAID THE ENTIRE SEAT NEEDS TO BE REPLACED. THIS IS A SAFETY ISSUE AS I DON'T KNOW WHETHER OR NOT THE AIRBAGS WOULD DEPLOY IN THE CASE OF ACCIDENT.

Mileage: 64,406

20170517ENGINE

TL* THE CONTACT OWNS A 2009 MINI COOPER S US. ON SEVERAL OCCASIONS, WHILE ATTEMPTING TO START THE VEHICLE, THE ENGINE FAILED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE TIMING CHAIN NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND THE CONTACT STATED THAT THEY EXTENDED THE WARRANTY ON THE VEHICLE. THE FAILURE MILEAGE WAS 59,000.

Mileage: 59,000

20150626ENGINE

VEHICLE STARTING MAKING A RATTLING NOISE IN THE LEFT FRONT TIMING CHAIN AREA, TOOK TO LOCAL MECHANIC AND HE ADVISED ONE OF THE TIMING TENSIONERS HAD SNAPPED, PROBABLY DUE TO THE TIMING CHAIN HAVING TOO MUCH SLACK, I WAS ADVISED THAT THERE MAY BE A RECALL ON THESE AS IT SEEMS TO BE HAPPENING A LOT. HE ADVISED ME TO REPLACE THE TIMING CHAIN AND TENSIONERS IN ORDER TO NOT RISK THE TENSIONER FAILING AND CAUSING CATASTOPHIC ENGINE FAILURE, PARTS COST IS ABOUT $900 AND INSTALLATION ABOUT $500. THIS SEEMS TO BE GOING ON A LOT AND THERE IS LOTS OF INFO ON THE INTERNET STATING IT IS AN ISSUE THAT CAN CAUSE PERSONAL INJURY OR DEATH SHOULD THE VEHICLE BE INOPERABLE ON A HIGHWAY OR IN TRAFFIC.

Mileage: 51,000

20140205ENGINE

I WAS DRIVING HOME FROM WORK ON US 75 SOUTH (DOWNTOWN DALLAS) AND THE VEHICLE (2009 MINI COOPER S) JUST STOPPED, AND ALL OF THE OIL WAS LEAKING OUT FROM UNDERNEATH THE CAR. I RECENTLY FOUND OUT THE ISSUE IS WITH A MINI ISSUE RELATING TO THE TENSIONERS/TIMING CHAIN. *TR

Mileage: 55,000

20140205POWER TRAIN

I WAS DRIVING HOME FROM WORK ON US 75 SOUTH (DOWNTOWN DALLAS) AND THE VEHICLE (2009 MINI COOPER S) JUST STOPPED, AND ALL OF THE OIL WAS LEAKING OUT FROM UNDERNEATH THE CAR. I RECENTLY FOUND OUT THE ISSUE IS WITH A MINI ISSUE RELATING TO THE TENSIONERS/TIMING CHAIN. *TR

Mileage: 55,000

20130930ENGINE

THERMOSTAT HOUSING DESIGN FLAW. SPOKE WITH PART DEPT MANAGER ABOUT THE THERMOSTAT HOUSING LEAKING COOLANT AND WAS TOLD THAT THERE SEEMS TO BE A DESIGN FLAW IN THAT THE HEATING ELEMENT IN THE HOUSING CAUSES THE PART TO SPLIT OPEN WHERE THE 2 PIECES WERE SEAMED TOGETHER. THIS HAS BEEN REPORTED TIME AND TIME AGAIN AND CURRENTLY THAT PARTICULAR PART IS ON BACK-ORDER AND THUS NOT ABLE TO DRIVE THE CAR AS IT LEAKS ALL THE COOLANT OUT BEFORE LEAVING THE DRIVEWAY. *TR

Mileage: 92,000

20110409TIRES

I HAD A GOODYEAR RUNFLAT TIRE THAT WAS OEM AND LESS THAN 2 YRS. OLD W/ 20,000 MILES BUBBLE ON THE SIDEWALL. IT WAS REPLACED AT DISCOUNT TIRE. THE TIRE COST $257 ON A 2009 MINI COOPER S. THESE TIRES ARE DEFECTIVE. TIRES ARE EXCELLENCE ROF AND NOT INTEGRITY SINCE YOUR SITE MISTAKENLY DOES NOT GIVE THE CORRECT OPTION. *TR

Mileage: 20,000

20110301ENGINE AND ENGINE COOLING:ENGINE

I HAVE A 2009 MINI COOPER S. BOUGHT NEW. THIS HAS BEEN AN ONGOING PROBLEM. THE ENGINE HAS A RATTLING NOISE WHEN ENGINE HAS STARTED ON A COLD DAY. THIS NOISE HAS GOTTEN PROGRESSIVELY LOUDER EVERY WINTER. THE NOISE SUBSIDES AS THE ENGINE GETS WARM. HAVE TOLD MINI ABOUT THE PROBLEM AND NO ACTION. *TR

20090429FUEL SYSTEM, GASOLINE

ON 4/9 I PURCHASE A 2009 MINI COOPER. ON 4/14 I WAS IN TRAFFIC AND THE CAR STARTED SURGING AND THE ENGINE LIGHT CAME ON. I CALLED THE SERVICE ADVISER WHO SUGGESTED I REPLACE THE GAS CAP. I IGNORED HER RESPONSE BECAUSE IT ONLY CLICKS ONCE AND I KNOW THIS WAS COMPLETED PROPERLY AND IMMEDIATELY TOOK THE CAR IN FOR SERVICE. THERE FINDINGS WERE AS FOLLOWS; HOWEVER I HAVE SEEN SEVERAL OTHER POSTINGS ONLY FOR THE SAME PROBLEMS. CAUSE: INTERROGATING FAULT MEMORY FOUND HIGH PRESSURE SYSTEM TO LOW PERFORMED TEST PLANT ON DME CONTROL UNIT FOUND WORKING NORMAL, PERFORMED TEST WITH FUEL PRESSURE FAIL, WAS TO LOW OPEN HIGH PRESSURE PUMP, FOUND FUEL PRESSURE PUMP/SHAFT DEFECT, CRACK SPEND FREE. *TR

Mileage: 392

20090429ELECTRICAL SYSTEM

AFTER PURCHASING A 2009 MINI COOPER THE OUTLET IN BOTH THE FRONT AND REAR OF THE CAR STOPPED WORKING. THE DEALERS EVALUATION WAS AS FOLLOWS: NEITHER THE FRONT OR THE REAR CIGARETTE OUTLETS ARE WORKING. CHECK AND ADVISE. CAUSE: CHECKED/FOUND 20 AMP FUSE BLOWN, INSPECTED OUTLETS, FOUND SOCKET/OUTLET IN CENTER CONSOLE SHORTED TO GROUND CORRECTION: R & R FRONT CENTER CONSOLE REPLACED SOCKET & ILLUMINATED RING. UPDATED IVOQ. 05/01/09. *TR

Mileage: 674

Compare 2009MINICOOPER S US to Similar Vehicles

NHTSA Investigations

View all investigations

Frequently Asked Questions

How many complaints does the 2009 MINI COOPER S US have?
The 2009 MINI COOPER S US has 13 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 2009 MINI COOPER S US?
The most-complained component for the 2009 MINI COOPER S US is ENGINE with 4 complaints. Other frequently reported areas include FUEL SYSTEM, GASOLINE and ELECTRICAL SYSTEM.
Is the 2009 MINI COOPER S US safe to buy?
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.

Vehicle Safety Guides

Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.