lhm leak
there are new spheres and recon spheres (sometimes sold as new spheres) in my expereince the recon one can last about 3 days if your lucky 3 months! .. thats my experreince. I dug deep and bought some new Citroen ones from Citroen though i did haggle on the price. I also found the the wee black flexi hydraulic pipe by the front cross meember was prone to falling off, this was becasue the rubber had lost its a grip on the pipe, i cut the pipe back half and inch and refitted - no bother since