Description Reviews MINI Cooper S Expansion Tank Cap! These fail from time to time on R52 or R53 MINI Cooper S's. MINI updated the cap and the inside and the seal a while ago. You can tell by the bright blue seal inside of it. This is a brand new OEM design, but a Quality Aftermarket part.
On Sale! Quick view Choose Options Detroit Tuned Detroit Tuned Turbo Oil Line KIT Was: $135.42 Now: $117.35