kyle0k

My wife's 2011 SL63 just had it's check engine light turn on. I had the codes ran at a local parts store and there was 6 codes. It was basically just 2 repeating codes:

P0171 - Bank 1 system too lean
P2187 - System too lean at idle: Bank 1

Any advice on what it could be and if it's an easy fix? I'll probably take it to the dealer, but it's always a arm and a leg there.

Plutoe

Sounds like you have issues with pre or post emissions sensing system---off to an indy to confirms Biffs fault read!

kyle0k

All the reading I have done implies it might be MAF, intake manifold or some vacuum tubes.

I might end up just taking it to the dealer. I've got Fidelity Platinum extended warranty, so I'm hoping whatever it is they will cover it.