What? Your scrapping a finback? or was the 200 as well. IMHO buy the car and drive it but I think the engine you really want is the 5cylinder turbo (OM617). Those engines are a dime a dozen and will run circles around that 4 banger. I wouldn't be too concerned about 5 years, but like any Mercedes Change That Coolant! Seriously though check out eBay for used OM617s they are just a dream and cheap too seeing as how that engine typically outlasts the car it's in.