If you simply must have a M-B, then sure, but I can tell you that car is going to be a money pit. Even newer C Class Merc's are not very reliable. You'd be much better off getting a used Honda Accord.
Ok i am looking at a 1994 Mercedes c280 it has 138,000 miles and cost $4,650. It doesn't have a scratch on it. Its paint, tires, and everything else is good. the inside is amazing too. Right now i have a 1989 Mercedes 260e and is old bad paint slow and we have put a lot of money in it? what should i do sell my old car and get that one? if so sell for how much?