Though they fail with less frequency on the older 96-98 TDIs, the mass airflow sensors are prone to failure, affecting performance and fuel consumption. Be sure to fully diagnose the problem before assuming it is the MAF, especially on these older cars where there can be a variety of factors.
- Jetta TDI MkIII (A3 chassis) w/ AHU Engine (1997-1999)
- Passat TDI (B4 chassis) w/ AHU/1Z Engine (1996-1997)
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