Problem Reports
Mercedes-Benz E430 4MATIC
Report: Replace air filter when replacing failed mass air flow sensor
Mercedes-Benz E430 4MATIC Problem
3 Reports
Model Years Affected: 2000, 2001, 2002
Verified
The mass air flow sensor tends to fail causing poor fuel economy and Check Engine light illumination. 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.