Codes Already...
 

Apparently the dealer cleared them right before I got there :tsk:

I am showing p0170 and p0173, which are fuel trim 1 and 2 malfunctions. I would think that this is most likely the 02 sensors??? If so, where is the cheapest place (or a part number for them at least) to buy them so I can see if it's worth going to the dealer.

Ouch, too bad. Seeing as how you just picked up this vehicle, I recommend taking it back to the dealer.

Could also be the software. There is a TSB.

Do you have a write up on the TSB? The dealer is about 45 minutes away, so I don't know when I will have time to drive there.

Does anyone know if these are the codes common with 02 sensors? OR could it be the MAF?

http://forums.mbworld.org/forums/pri...d.php?t=108994

I just wanted to update this for future searches...

cleaning the mass air flow made the code dissapear.

Sorry, just caught your reply. I found the write up on the forum. I already gave it to the stealer....