The Denso DMA0209 mass air flow sensor measures the airflow into the engine and operates electrically. It is designed for the Audi A6 4A C4 with a 2.8-litre engine, model years 1994 to 1997.
- Type: Mass air flow sensor
- Brand: Denso
- Operating mode: Electric
- Number of pins: 3
- Quality: OE
- Engine displacement: 2771 cc
- Engine power: 128 kW
- Years of application: 1994–1997
- Compatibility: Audi A6 4A C4 2.8, Audi A6 4A C4 2.8 quattro
- Equivalent part numbers: AUDI 078133471A, AUDI 078133471AX, HITACHI AFH7008B, VW 078133471A, VW 078133471AX, HELLA 8ET009142411, HITACHI 135047