Minimize downtime by purchasing a rebuilt ABC valve block. These valve blocks have been thoroughly inspected and tested. All orings replaced with premium Viton compound, these blocks have upgraded PTFE backup rings, new seals, new clips, fully tested and come with a 90 day replacement warranty. Price includes a $100 core charge that is refundable when you return a rebuildable valve block. Fits ABC equipped SL CL and S class Mercedes Benz up to and including model year 2006. compatible with part numbers 2203200358 and 2203280031 which are found in these cars.