Description Reviews MINI Cooper S Expansion Tank! These fail from time to time on R52 or R53 MINI Cooper S's. Very early on they all failed right at the seam and that unit was a clear milky white color. By early 2003 they had a fix for the problem; they created a new tank that is still milky in but more of tan in color. They also updated the cap on the inside and the seal. You can tell by the bright blue seal inside of it. Nowadays we see some leak from the seam and some from the cap. We do sell the cap by itself if needed. This is a brand new OEM design and comes with the new updated cap. Comes with a 2 year unlimited miles warranty from MINI! Want more under bonnet bling with a permanent solution? Try the this aluminum tank! 1 Review 5 Aftermarket gold Posted by Conedamaga on 17th Feb 2025 This is the fourth expansion tank I have put on my car including two OEM's and a stainless steel one that puked out of the cap (R53 167,000 mile as of Feb 2025.) I hope it lasts a long time before it cracks.
5 Aftermarket gold Posted by Conedamaga on 17th Feb 2025 This is the fourth expansion tank I have put on my car including two OEM's and a stainless steel one that puked out of the cap (R53 167,000 mile as of Feb 2025.) I hope it lasts a long time before it cracks.
On Sale! Quick view Choose Options Detroit Tuned MINI Aluminum Expansion Tank Kit G1 Was: $156.25 Now: $124.95
On Sale! Quick view Currently Out of Stock. Please Call! MINI Cooper S Throttle Body G1 Was: $464.19 Now: $329.30