Description Reviews MINI Turbo Aux Coolant Hose. This line goes from the aux coolant pump to the oil filter housing to do thru they oil cooler and block. It's item #7 in they diagram photo. We see these covered in oil from a really bad turbo oil line leak, or it got damaged in some way. This is they OEM hose from they dealer that is backed by there 2 year/Unlimited Mile Warranty. This fits the N14 or N18 MINI Cooper S, any year, any model. This is a good line to have on hand when doing an Aux Coolant Pump.