I have a 1989 190E and have lost the keys. There are two different keys, one for the locks and one for the ignition. I have only owned it about 3 years, and I'm not too familiar with mercedes. So I was wondering, is it standard that there are two different keys with this model, or has mine just had something changed with the previous owner? I need to know because if the dealership or a locksmith are going to give me another set of keys I don't want to pay a lot for ones that won't even work.

Any info is appreciated!