audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Sensors and Switches - Emission Control Systems > < EGR Maintenance Light|Locations|Page 751
Page 1
background image

Positive Crankcase Ventilation: Description and Operation

This system recirculates emissions from the crankcase to the intake system. The crankcase vapors are then drawn into the engine and burned.

Sensors and Switches - Emission Control Systems > < EGR Maintenance Light|Locations|Page 751