R56 Mini Death Rattle Another more serious fault that affects N14 Cooper S and JCW engines is the well-documented problem with the timing chain and chain tensioner.

In the modern-day auto industry, parts sharing is standard practice. Mini Cooper engines are either BMW engines or developed ...

High octane fuel is less likely to cause engine knocking—a problem that can occur in engines with higher compression ratios, which are common in performance vehicles like the MINI Cooper.