Hi all, first time post. I have a 2018 Xf Sportbrake RSport. The rear passenger shock strut has failed and I'm struggling to find a replacement. It's adaptive suspension and the actual shock is fine. It's the strut that needs replacing but its very confusing. I've seen part number T2H34713 and t2h19520 gx6318080e quoted but can't be sure. Any help appreciated