宝马7系氧传感器 11787614322 精准排放监测 直接替换原装件

For BMW 7 Series F01/F02 chassis models, oxygen sensor, part number 11787614322, installed on the exhaust pipe before and after the catalytic converter. Real-time monitoring of exhaust oxygen content, feeding signals to the engine control unit to precisely adjust the air-fuel ratio, maintaining combustion efficiency and emission levels. Direct replacement for the original part; resolves increased fuel consumption, weak acceleration, engine fault lights, or exhaust odor. Installation difficulty moderate; labor 0.5–1 hour; avoid damaging threads during removal and ensure a good seal.