奥迪/宝马/凯迪拉克氧传感器 234-1000 DOX-0125 多车型通用

When your vehicle shows unstable idle, obvious increased fuel consumption, or engine fault light on, the oxygen sensor is likely aging or failing, causing air–fuel imbalance. This sensor when working normally monitors exhaust oxygen content in real time and feeds back to the ECU to precisely control fuel injection, ensuring combustion efficiency and compliant emissions. This oxygen sensor OEM number is 234-1000 (compatible with DOX-0125/DOX-0123); fits Audi, BMW, Cadillac and other common models. Use the dedicated socket to avoid stripping threads, and operate with the car cold to avoid burns.