The distinctive Mercedes-Benz tail light assemblies are unique to this vehicle. This exterior component is not something that will just wear out over time, but will require replacement if the vehicle is involved in an accident or is a victim of vandalism. The replacement of a tail light assembly on any Mercedes-Benz vehicle can be done in a shop or by the owner. The only tools required are a screwdriver and a ratchet set. The reason for their replacement would be if there is a crack in the assembly that would allow moisture to enter this otherwise closed component. If moisture is allowed to enter through an opening in the tail light assembly, it could short out the lights that are located there. This will create a situation where the Mercedes-Benz would not be legal to operate. By removing the entire Mercedes-Benz tail light assembly, not only could the lens be thoroughly inspected but also the housing unit. From the outside, damage to the housing unit or back portion of the tail light cannot always been seen. Removing it makes it possible for any damage, even a hair line crack, to be identified so the correct components can be ordered and the assembly to be a sealed unit again. A new tail light assembly on a Mercedes-Benz will not improve the performance of the vehicle. It will make it possible for moisture to be kept away from the electrical lights this assembly contains so they will be able to operate without the possibility of shorting out. This will make your vehicle street legal so it can be driven on the road without the worry of being pulled over by the police.