One problem related to crankcase (pcv) has been reported for the 2016 Volkswagen Passat. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2016 Volkswagen Passat based on all problems reported for the 2016 Passat.
After several attempts to identify the cause of my vehicle's excessive oil consumption, white smoke out of tail pipe and illumination of my low oil and epc lights, the vw dealership has diagnosed my vehicle with a failed air oil seperator/pcv stuck in the open position. During the times the epc light illuminated, I had a loss of engine power which potentially could have led to engine shut off and caused an accident. I often drive on the highway with construction with my children so sudden engine shut off is a safety risk. On 12/18/20, I took my vehicle to the vw dealership for excessive oil consumption, low oil and epc lights and white smoke out of tailpipe. The technician diagnosed and repaired a blown upper timing gasket. The problems persisted and I dropped off the vehicle at the dealership on 01/19/21. Dealership advised computer update was needed and was performed. Problems persisted and vehicle was dropped off on 01/30/21 and 03/15/21 for oil consumption tests and advised results were in 'acceptable' range for vw. After researching work history on my vehicle, I remembered I took it in while under warranty (under 36k miles) for fuel smell in cabin when using the heater. Vw technicians checked fuel lines, injectors and fuel tank but found nothing wrong. After researching this topic on various vw blogs, I found the fuel smell in cabin was caused by failed pcv system in numerous cases. I believe my air oil seperator/pcv was faulty and began to fail while my vehicle was still under warranty. Further internet research revealed websites and blogs with numerous mentions of failed vw/ Audi pcv systems. I believe my vehicle may have been affected by a faulty part installed and has been overlooked by vw.