Two problems related to gas recirculation valve (egr valve) have been reported for the 2014 Volkswagen Passat. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2014 Volkswagen Passat based on all problems reported for the 2014 Passat.
Emissions system on engine has premature failures following the tdi scandal modifications, causing the coolant system to fail prematurely. Have had 2 heater cores clogged in the past 3 years, resulting in egr failures, impacting emissions and potential engine overheats.
This vehicle has experienced cooling system issues since 49000 miles. The car now has 122,500 miles. The heater core has been replaced 5 times, 2 radiators, egr cooler, intercooler, oil cooler, transmission cooler. These are all impacted with some sort of sludge. Vw had issued an extended warranty on the heater core addressed by TSB 80-15-04. After numerous conversation with vw and the dealer service department the parts other then the heater core that is covered under the TSB have been replaced at no cost to me except the inconvenience of the time involved to resolve these issues. Vw is claiming that these vehicles do not have an issue other than what the TSB addresses. I have since traded the car in on a 2015 Passat tdi that now appears to be experiencing the same issues. There isn't a TSB or extended warranty for the cooling system/heater on this model. I believe this to be a safety issue, not having the proper heating system could impair visibility in the winter.