雷诺氧传感器 0258027031 原厂品质传感

Renault oxygen sensor 0258027031 directly replaces original numbers 0258027031 and 22693-4803R; good universality. Core function is to monitor oxygen content in exhaust and feed ECU to adjust air-fuel ratio for efficient combustion. Fits Renault Koleos, Fluence, Megane and other models, depending on displacement and year. If fuel consumption rises, acceleration weakens, or check engine light on, replacing restores power and saves fuel. Typical aging signs include rough idle, strong exhaust odor, or emissions test high.