2014 Mini Cooper works problems
John Cooper Works (JCW) is a British car marque now owned by BMW and it is an in-house tuning, development, and international automotive racing division for Mini vehicles. It was founded in 2002 by Michael Cooper, son of John Cooper, the racing car maker and tuner responsible for the original Mini Cooper.
In 2007, German automaker BMW acquired the rights to the name, and it bought out the company in 2008.
JCW Tuning
Cooper
The first ever JCW kit was a 126 bhp (94 kW) upgrade for the Mini Cooper. The kit consisted of the following components:
- Flowed and ported cylinder head
- Air filter
- Cover injection tube
- Uprated exhaust (from the catalytic converter back)
- Remapped ECU
- Decorative emblems
Despite its price tag of over €2000, this kit only offered a power increase of 11 bhp (8.2 kW), a sportier exhaust note and a crisper throttle response. The main advantage was that these improvements, though fairly minor, could be made to the Cooper without jeopardizing the factory warranty. In 2004, JCW discontinued the Cooper kit and introduced a Sound Kit for the Cooper. The Sound Kit consisted of a unique air intake system, cat-back exhaust and an ECU remap.
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Common 2014 Mini Cooper works problems
The Mini Cooper has been a popular choice among car enthusiasts for its unique style and performance capabilities. However, the second-generation R56 Mini models, produced between 2007 and 2014, have been known to experience several common problems.
One of the most prevalent issues in these models is the coking of inlet valves due to the build-up of carbon around the valves and intake ports. This issue is a result of the R56 Mini using direct injection for performance and economy. The only solution to this problem is to have an engine decoked, where crushed walnut shell is blasted at the inlet manifold and the tops of the valves.
Another common problem is failing coil packs, which can be observed during a test drive as the engine will feel down on power and misfire. The coil packs are located under a cover on the top of the engine, and a set of four should cost around $120/£100. This is a straightforward DIY job to replace, but specialists can also do it for you.
The high-pressure fuel pump is another component that can fail, especially in the Cooper S models. A big giveaway on the test drive is if the engine surges while driving. This is usually followed by poor starting and rough running afterward, with an engine warning light on the dashboard. The only solution is a replacement high-pressure fuel pump, which costs around £600 at a specialist.
The bypass valve, made of plastic, can also cause issues in the Cooper S and JCW models. It's worth checking the condition of the bypass valve on the test drive of any Cooper S and JCW. A failed bypass valve can cause the engine to lose power and misfire, especially during hard acceleration.
The windscreen on second-generation models might be smaller thanks to the taller body, but they’re still quite upright in design and as such are susceptible to stone chips and cracks. Inside, the dashboard is more stylish but it also suffers from rattles and squeaks, especially on early cars. Look for wear on the interior trim and seat bolsters. Check for curbing damage on the alloy wheels; these are common issues that can affect the Mini Cooper's reliability and performance.
The N14 engine, in particular, suffers from oil consumption woes that can have you popping your hood as frequently as every 500 miles to top it off with oil. This issue is caused by a stuck PCV diaphragm and/or a cracked valve cover. The only solution is to replace the whole valve cover, as the PCV diaphragm is not technically serviceable. However, for the easiest solution with the highest chance of success, replacing the cover itself is recommended.
The JBE Fuse Box in the MINI COOPER R56 can also cause various operational hiccups, including intermittent stalling, no-fuel problems, no-start problems, and other associated problems. A specialized repair service is available for the 2007-2014 MINI COOPER R56 JBE Fuse Box, which promises to repair and send it back within 24 hours, ensuring minimal downtime for your car, and offers a lifetime warranty on their repair service.
In conclusion, while the Mini Cooper offers unique style and performance capabilities, the second-generation R56 models have been known to experience several common problems, including coking of inlet valves, failing coil packs, high-pressure fuel pump failure, bypass valve issues, windscreen damage, dashboard rattles, and JBE Fuse Box malfunctions. Regular maintenance and inspections can help prevent these issues and ensure the longevity and reliability of your Mini Cooper.
What is the common problem of Mini Cooper?
The 1st generation (R50/R53) Mini Cooper is known for premature clutch wear and failure. This typically occurs between 40,000-60,000 miles on vehicles built from 2001-2006. The root cause is due to an under-designed single-mass flywheel and weak factory clutch that cannot handle the torque of the supercharged engines.
How reliable is a 2014 Mini?
Reliability Survey, ranking 10th out of 19 cars in the small car class, with a confidence-inspiring reliability score of 96.7%. The Toyota Yaris and Suzuki Swift ranked higher, so they're even more reliable, but the Mini Hatch is more reliable than the Ford Fiesta, VW Polo and Audi A1.
Is a 2014 Mini Cooper safe?
In the pole test, protection of the chest and abdomen was rated as adequate. Tests on the front seats and head restraints revealed good protection against whiplash injury in the event of a rear-end collision, while a geometric assessment of the rear seats indicated that the protection there would also be good.
What are the disadvantages of Mini Cooper?
Mini Cooper Cons
- The car can be expensive because it uses premium fuel. ...
- The engine runs quietly when you are gentle with the driving. ...
- Mini dealerships are quite hard to find. ...
- Well, it may not be a downside but you have to admit that Cooper is a small car.
2014 Mini Cooper works car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Mini Cooper works problems, we found that the most common problems with these 2023 model year vehicles are:
- Power train problems
- Electronic stability control (esc) problems
- Service brakes problems
The graph below shows statistics for all 2014 Mini Cooper works vehicle components and the number of complaints received.
2014 Mini Cooper works complaints
The NHTSA has received 1 complaints about various vehicle components related to the 2014 Mini Cooper works.
POWER TRAIN,ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES PROBLEM
- Date Of Incident: 2017-10-29
- Components: POWER TRAIN,ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES
- Summary: ABS, ACSM CRASH SAFETY CONTROL MODULE, EMERGENCY BRAKE, ACC CRUISE CONTROL, MID LEVEL AND SPORT MODE INOPERABLE ONLY FUNCTIONS IN GREEN MODE WITH SEVERE LIMITATIONS THAN FROM BEFORE THIS OCCURRED. IGNITION, ACCELERATION, TOP SPEED... ALL OF THESE ARE AFFECTED AND MY CONCERN IS NOT ONLY THE SOFTWARE AND THE ACSM BUT BECAUSE THE DRIVE HAS CHANGED SIGNIFICANTLY I BELIEVE IT COULD BE MORE OF A PROBLEM THAN A SOFTWARE UPDATE AND THE ACSM. I WAS TRAVELING/IN MOTION ON A CITY STREET AT 45MPH IN GREEN MODE AND ACC ACTIVATED. I LIVE IN ARKANSAS, THE STREETS ARE WINDING CURVY ROADS JUST LIKE I PREFER MY ASPHALT AND DRIVE TO BE HOWEVER I HAVE NEVER EXPERIENCED ANYTHING ELSE THAT HAS CAUSED THIS MUCH CONCERN AND I HAVE NOT "DUKES OF HAZARD" MY MINI. I HAVE NOT BEEN IN AN ACCIDENT OR RECEIVED ANY DAMAGE TO THE VEHICLE.
Additional sources
More sources of information about 2014 Mini Cooper works problems:
Mini reliability issues, if any? | Mini Cooper Forum
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Jul 20, 2021 ... I have a 2014 Mini S JCW edition and have had a ton of costly mechanical issues, including a two year stint where the car would stutter and ...
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Jan 31, 2023 ... The first indication that something was wrong occurred in mid-November. I would intermittently receive a message indicating there was a battery ...
Good idea to buy a 2014 Cooper S ( F56 ) with already 100k ...
Nov 18, 2021 ... The other issues are the upper engine mount, ignition coils and turbo. The upper mount will be a failure point by 160k km, if it's already ...
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