The average cost for a EGR Valve Replacement is between $310 and $394. Labor costs are estimated between $61 and $78 while parts are priced between $249 and $316. Get a personalized estimate based on your location and specific car. Estimate does not include taxes and fees.
EGR Valve Replacement Cost for Mercedes-Benz S420
EGR Valve Replacement Estimate (National Average)
The entire Mercedes-Benz S420 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 Mercedes-Benz S420 to idle roughly.