Just purchased a 2010 C63 AMG last week and already have a check engine light. Wow, that was quick! Car has 71,000 miles along with a resonator delete. The code reads P2188 (System Too Rich at Idle) along with P0172. Can anyone point me in the right direction where to start with these codes or educate me on what these might be. I searched on the forums for these codes but can find a answer for specific model.

 

New MAF sensor is one option

 

Welcome to Mercedes ownership

 

100 views but no responses

 

Maybe posting in the correct forum will yield better results?

 

Here's my second response

 

My buddy is looking at it currently and from what it sounds like might be the injector staying opened. This is a common issue on these cars from what I heard. I'll follow up once finished. Should have bought something american made #cts-v.