Description Reviews MINI made a lot of changes on the N16 andN18 Thermostat, so they had to make a wire harness that would go between the MINI Cooper thermostat and the main engine wire harness on certain years till the main engine wire harness could be changed to reflect the change in the thermostat. This harness is for they N16 Cooper and are said to have a build date of 06/10 to 03/12 and work with the 290 early thermostat. As always, there are changes and your car could be different. Have any questions, give us a call.