15 years of working on cars and ive just got one, had a couple of New Minis in of late which are not only notorious for air locks when bleeding but the latest also having a leak, for this money this tool is invaluable, sorted couple of common leak areas and then use this tool to hold system in Vaccumn for 15 mnutes before refilling with coolant, i must point out the speed of this item also, takes about 15 mins to successfully fill a Mini, with this its done in less than 2..
Good little device! Works a treat! Used after doing a head gasket! Only issue, the male to female connector was to large for the airline. Had a spare knocking around so just swapped it. Highly recommended. Thanks