The car is an '05 and those are the only codes, running fine and have not noticed a difference in the mileage I'm getting. They did not clear the code so the check engine light is still on. I have a Drivers Auto up the street who works on foreign cars and I'll assume that's where I should head since it's the Mercedes engine. I can check to see if they can clear the code first and see what happens and talk to them about the 02 sensor being replaced as well as checking the harness.