SIEMENS/VDO mass airflow sensors are exceptionally reliable and highly capable of withstanding environmental factors. Their dynamic measurement ability makes an important contribution to reducing vehicle emissions. Mass airflow sensors are positioned directly after the air filter in the intake manifold and supply information on temperature, humidity and intake air volume. Fits 2001-2006 BMW X5 3.0, 6 cyl with M54 engines (E53). Perfect fitment and quality. 

SIEMENS/VDO Sensors for Engine Management

Sensors can help cut fuel consumption and harmful emissions. They play a part in boosting engine efficiency and vehicle safety to ensure greater driving comfort and enjoyment.