2012 Mini COOPER S JCW - Hatchback — R56
Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2012 COOPER S JCW - Hatchback R56.
Engine R56Transmission Automatic (S6)
The 2012 Mini Cooper S JCW is a sporty hatchback built on the R56 platform, powered by the R56 engine paired with a 6-speed automatic transmission, and achieves EPA fuel economy ratings of 25 mpg city, 33 mpg highway, and 28 mpg combined; it requires 4.4 quarts of 5W-30 motor oil for service. According to complaint data spanning from 2004 to 2025, the 2012 model year falls within a period during which reliability issues trended sharply downward, with the model receiving 529 complaints at its peak in 2004 and dropping to just 1 complaint by 2022. This dramatic decline in reported issues suggests that by 2012 the platform had achieved a substantially more mature and dependable design, which positions this model year as a notably more reliable iteration within the Cooper S lineage compared to its earlier counterparts.