Buy 2012 Audi S4 Mass Air Flow Sensor. 1998-2003. 1999-2003. 90 HORSEPOWER. Beetle; 1.9L Diesel. Coupe Engine, TDI, TRANSAXLE - OEM Audi Part # 038906461C (038-906-461-C, 06A906461, 06A906461 X, 06A906461X)

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

Mass Air Flow Sensor

1998-2003. 1999-2003. 90 HORSEPOWER. Beetle; 1.9L Diesel. Coupe, 1998-2003. Golf, GTI, R32; 1.9L TDI. Jetta; 1.9L TDI. Jetta; 1.9L TDI; Engine Code ALH.
Mass Air Flow Sensor - Repair or Replace
If the mass air flow sensor or MAF meter in your 2012 Audi S4 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.