A2780180035 OEM Crankcase Oil Separator for Mercedes M278 & M157 V8 AMG Engines
OEM crankcase oil separator numbered A2780180035 is exclusively engineered for Mercedes-Benz M278 4.7T V8 and M157 5.5T V8 AMG twin-turbo engines, covering chassis platforms W212 E-Class, C218 CLS, W166 ML/GLE, X166 GL/GLS, W222 S-Class, C216 CL and R231 SL produced 2011–2019. Its core function is separating oil mist from crankcase blow-by gas before gas re-enters the intake manifold, balancing internal engine pressure and cutting excessive engine oil consumption.
Multi-layer labyrinth separation structure paired with heat-resistant PPO plastic housing tolerates sustained 120℃ engine bay heat and violent vibration from high-performance AMG turbo powertrains. Built-in reinforced rubber sealing gaskets block oil vapor leakage at mounting flanges, preventing oil contamination on intake valves, throttle bodies and intercooler pipelines common on large displacement V8 Mercedes models.
Degraded factory oil separators lose oil-mist filtering efficiency over time, leading to abnormal blue exhaust smoke, steep oil burn rates, clogged intake carbon deposits, illuminated engine malfunction lights and weak high-speed power output. Fitting this OE-spec oil separator restores clean crankcase ventilation, eliminates abnormal oil consumption, reduces carbon buildup on critical intake components, and recovers original power delivery for premium Mercedes V8 and AMG performance vehicles.
Multi-layer labyrinth separation structure paired with heat-resistant PPO plastic housing tolerates sustained 120℃ engine bay heat and violent vibration from high-performance AMG turbo powertrains. Built-in reinforced rubber sealing gaskets block oil vapor leakage at mounting flanges, preventing oil contamination on intake valves, throttle bodies and intercooler pipelines common on large displacement V8 Mercedes models.
Degraded factory oil separators lose oil-mist filtering efficiency over time, leading to abnormal blue exhaust smoke, steep oil burn rates, clogged intake carbon deposits, illuminated engine malfunction lights and weak high-speed power output. Fitting this OE-spec oil separator restores clean crankcase ventilation, eliminates abnormal oil consumption, reduces carbon buildup on critical intake components, and recovers original power delivery for premium Mercedes V8 and AMG performance vehicles.


