MB parts
Don't know but, just Google MB parts new and used you will find plenty sites...shop several because as you know the MB prices vary greatly...I like E bay myself, they have a lot of MB parts new and used...I own a 2003 sl500 and have bought from e-bay a new oem water pump.$38 perfect fit, radiator new $100, hoses filters etc. .. interior 12 way seat switch for $29 like new worked perfectly. If you're a do it yourselfer you can find great deals on tons of parts..I just bought a new radiator resivor tank German oem $75 bucks.
hate to see what dealership Price's would be...You will have to do a lot of looking thru parts because all are not always vehicle specific..just spend some time..hope this helps.good shopping.