Shop OEM Volkswagen Group Part # 079133471 (079-133-471). Mass Air Flow Sensor. 4.2 LITER. S5; 4.2L. Mass Air Flow Sensor - Repair or Replace If the mass air flow sensor or MAF meter in your

Air Meter. Mass Air Flow Sensor.
Mass Air Flow Sensor.

Mass Air Flow Sensor

Fits S5

4.2 LITER. S5; 4.2L.
Mass Air Flow Sensor - Repair or Replace
If the mass air flow sensor or MAF meter in your is failing, you’ll notice in addition to the check engine light that your engine may crank and not start, or that the engine speed surges at idle.