宝马3系氧传感器 11787530282 0258007273 提升发动机效率

Is your BMW 3 Series experiencing idle instability, abnormal fuel consumption or engine fault light on? This usually indicates aging or failure of the oxygen sensor, unable to accurately monitor exhaust oxygen content, causing air-fuel mixture imbalance. When functioning, the oxygen sensor provides real-time oxygen concentration feedback to the ECU to accurately control fueling, improving engine efficiency and reducing emissions. This product fits BMW 3 Series (E90/E92/E93, etc.), OEM number 11787530282 (also compatible with 0258007273). During installation, be sure to use the dedicated sleeve, avoid excessive force damaging sensor threads, and clean the mounting surface to prevent leaks and signal errors.