BMW Mass Air Flow Sensor - Bosch 0280218077

Product Information

This OE Bosch mass air flow (MAF) sensor uses advanced hot film technology to precisely measure the volume of air entering your BMW’s engine. The sensor detects changes in airflow based on how much current is needed to keep a heated element at a constant temperature. This data is relayed to the DME (engine control unit) to ensure optimal fuel injection and ignition timing.

Over time, contamination from dirt, oil, or environmental factors can degrade the sensor’s accuracy. A failing MAF sensor can result in engine hesitation, poor fuel economy, or a check engine light. If unplugging the sensor improves engine performance, it's a strong indicator that replacement is necessary.

Mass Air Flow Sensor
Bosch MAF sensors are engineered to original equipment specifications and offer long-term accuracy and durability. The self-cleaning design helps maintain consistent performance, making them a vital component for modern fuel-injected engines.

Failure Symptoms:

• Check engine light: Commonly triggered by codes P0100–P0104 related to airflow errors.
• Rough idle or engine stalling: Due to inconsistent or inaccurate airflow readings.
• Fuel trim issues: Engine may run rich at idle or lean under load.
• Poor drivability: Includes hesitation, decreased power, or poor fuel economy.