I drive a 2005 c230k and it has 148000 miles on it. My check engine light came on and I went to a car parts store because I don't own a reader.
The codes that came up were three: P0456 and P0600 (th us one came up twice).
Can someone explain these to me and how much repairs for these problems would cost?
Thanks!

 

Hello from Canada, Loose gas cap? Try checking that it is correctly tightened. That's the easy one. The other however is both a lengthy explanation and probably expensive. Look here repairpal.com/OBD-II-Code-P0600 Allan