Audi Coupe Quattro EGR Valve Replacement Cost.
Learn More About EGR Valve Replacement Cost
The entire Audi Coupe Quattro EGR system should be inspected and cleaned (if necessary) when an EGR valve is replaced.
Problems with the EGR valve can trigger trouble codes, which will cause the Check Engine Light to come on. The vehicle may also fail emissions tests.
EGR valve problems can cause the Audi Coupe Quattro to idle roughly.