EGR System: Description

The exhaust gas recirculation system is designed to control formation of NOx emissions. This is done by introducing some exhaust gas back into combustion chamber. Exhaust gases are lower in temperature than combustion flame. By reducing combustion chamber temperatures, NOx formation is reduced.

The Sportwagon system includes thermo valve, vacuum reservoir, differential pressure switch, EGR valve solenoid and EGR valve. See Figure .