Car Air Suspension Mercedes Benz V Class W447 Air Suspension System Rear Air Spring Repair Bag 4473280000 Our rear air spring repair bellow 4473280000 is a reliable commercial-grade aftermarket replacement component engineered for the original rear air suspension system of Mercedes-Benz V-Class W447 chassis. As a commercial passenger vehicle, the factory rear air springs on Mercedes W447 suffer faster rubber aging, cracking and gradual air leakage under frequent full-load