Remove/Install Trim On Battery Of 12 V On-Board Electrical System In Engine Compartment At Left - AR54.10-P-0051-01S

Model 223.### 2# with engine 177, 256 

with code ME10 (Hybrid vehicle (plug-in, PHEV)) 

Courtesy of MERCEDES-BENZ USA

1. Open engine hood and position upright.
2. Release locks (arrows A) and remove rear left engine compartment trim (1).
3. Unclip air quality sensor (B31) from air duct segment (2).
4. Release holders (arrows B) and remove air duct segment (2).
5. Install in the reverse order.