Mercedes w203 C-230 Breather Hose Breather Hose (Partial Load Crankcase Ventilation) Recently made by VAICO, not been lying around. Mercedes part# 271 018 12 82, check fit below. Fits: 203.040: m271.948: (2003-2005): c230 sedan Fits: 203.740: m271.948: (2003-2005): c230 coupe