Mini Cooper Typical Problems - Common Mini Engine Malfunctions

By Nick Marchenko, PhD

The third and current generation of the Mini has been in production since 2014. This time, the five-door model is labeled as the F55, while the three-door version is known as the F56. The convertible, reintroduced in 2016, is internally designated as the F57. Facelifts were carried out in 2018 and 2021. Its predecessors were the Mini R55 and R56.

Mini Engine Problems - Petrol

For the F55 model, there are three-cylinder variants available, including the Mini One First (75 HP), Mini One (102 HP), and Mini Cooper (136 HP), as well as the four-cylinder Mini Cooper S (192 HP) and Mini JCW (231 HP).

The two three-cylinder engines with 1.2 and 1.5-liter displacements belong to the B38 series, which has been used in various other BMW models and has generally performed well. The four-cylinder B48, used in higher-performance variants, is also known for its reliability.

However, the B38 engine has not been entirely problem-free. Some isolated engine issues, including crankshaft axial bearing failures, have been reported in models with manual transmissions produced before April 2015, affecting both Mini and BMW vehicles.

Another common issue with direct-injection petrol engines like the B38 and B48 is carbon buildup in the fuel injectors and intake system. Typically, this problem becomes noticeable at higher mileage and should not be ignored.

Got any problems with your Mini Cooper engine? You can find the information about it in our Engines section:

• 2012;
• 2011;
• 2010;
• 2009;
• 2008;
• 2007;
• 2006

Mini Engine Problems - Diesel

For those who drive more, there are diesel options such as the Mini One D (95 HP), Mini Cooper D (116 HP), and Mini Cooper SD (170 HP). The engines in the B37 and B47 series have largely overcome the timing chain problems of their predecessors, but typical diesel weaknesses should still be monitored, especially at higher mileages. These include:

• Diesel Particulate Filter (DPF);
• Dual-Mass Flywheel (DMF);
• Turbocharger;
• Exhaust Gas Recirculation (EGR) Valve;
• Fuel Injectors;

Typical Mini Weak Points

Motorists have occasionally reported knocking sounds from the engine compartment, often due to worn motor mounts, which may need replacement even at relatively low mileage.

The sway bar end link also tends to fail prematurely. Additionally, the trunk of the F56 model is prone to leaks, so when inspecting the vehicle, it's advisable to check if the trunk and spare tire well are dry.

MINI Recalls

The Mini F55 and F57 have been subject to several recalls. Below, we list the recall actions affecting a significant number of vehicles. For detailed information on recalls, you can refer to the KBA (Kraftfahrt-Bundesamt) or ADAC.

• According to KBA, a nut on the spare tire well support bracket can loosen, causing the spare tire and bracket to fall onto the road. This affects models from the 2013 and 2014 production years.
• Mini models produced in August to September 2014 experienced problems with seat height adjustment, which could be resolved by adjusting the recline lever.
• Approximately 200 vehicles from the 2016 production year were recalled due to airbag issues.
• There was a risk of fire due to glycol leakage from the exhaust gas recirculation cooler in four-cylinder diesel models produced between April 2015 and September 2016.

Mini Buyer's Guide

Prices for the third-generation Mini start at around $7,000, with models after the first facelift being priced in the five-figure range. Most of the vehicles offered for sale are three-door petrol models with automatic transmissions.

Nick Marchenko, PhD

Industrial Engineer & Automotive Content Specialist

Nick writes in-depth guides on car clubs, engine specs, vehicle ownership, and modifications, combining engineering knowledge with automotive passion.

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