Replace air filter when replacing failed mass air flow sensor on Mercedes-Benz E320

The mass air flow (MAF) sensor tends to fail. The engine air filter should be replaced when the mass air flow sensor is replaced; a dirty filter can allow debris to damage the new sensor.

RepairPal Verified
Average mileage: 163,000 (163,000–163,000)
8 model years affected: 1998, 1999, 2000, 2001, more2002, 2003, 2004, 2005
10 people reported this problem
1 person shared problem details
I had just replaced the MAF during the last oil change but the air filter looked fine so I left it alone. About 2000 miles later I have the MAF code again.
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