Common Problems With Mini Cooper S. One of the most common issues with the Mini Cooper is that the front radiator support and coolant hose are known to fail since they are made of plastic." (VehicleHistory) These concerns are important for potential buyers to consider when evaluating a Mini Cooper's reliability. This problem is specific to manual transmission Mini's only, the repair of this problem can be quite expensive.
BMW maintains the problem isn't safety-related, but at least five reports say they were injured after. That said, low reliability ratings suggest 2007 to 2013 Mini Cooper models could be the worst
One of the most reported Mini Cooper problems is transmission failure, particularly in models produced between 2002 and 2006. For example, owners have reported problems with the 2007 and 2011 Cooper They include timing chain tensioner concerns and potential engine problems
. "Mini Cooper vehicles are known to have some problems There have also been timing chain issues, coolant leaks and electric power steering pump failures
. This problem is specific to manual transmission Mini's only, the repair of this problem can be quite expensive. BMW maintains the problem isn't safety-related, but at least five reports say they were injured after.