Volkswagen Tiguan owners have reported 40 problems related to crankcase (pcv) (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Volkswagen Tiguan based on all problems reported for the Tiguan.
Large pool of motor oil under the left side of the engine. Dealer inspected and informed me of a failed rear main seal caused high crankcase pressure buildup due to a stuck (closed) pvc valve.
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Rear main seal gushing oil due to defective seal, timing cover seal leaking, recirculation valve leaking, crankcase valve leaking. Regular maintainance on car, otherwise in perfect condition. No reason for this to happen with such low miles. .
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Pcv valve is defective and tears on 100 percent of all Tiguans. This over pressurizes the crankcase causing a loud noise as pressurized air passes over the front and rear main seal damaging the seals. Exsessive oil leaks from the rear main seal onto the catalytic converter causing in many cases, a fire.
Rear main seal failed due to manufacturer defect causing oil to leak on to hot engine. Every 2. 0 tsi engine in Tiguan, cc, gti, jetta and eos experiences the same failure at around the same mileage. The rear main seal is not a wearing part and should last for the life of a vehicle if well designed. This forum thread shows many owners with the same issue at around the same mileage. . Read more...
I am reporting excessive engine oil consumption on my 2020 Volkswagen Tiguan. The vehicle consumes approximately one quart of oil per 1,000 miles. The vehicle has already undergone multiple diagnostic and repair attempts, including pcv-related repairs, all paid by the owner. Despite these repairs, the excessive oil consumption continues. Volkswagen and the dealership have stated that this level of oil consumption is “within range” and have required additional paid testing to further evaluate the issue, even though prior repairs failed to resolve it. I am concerned this reflects a broader engine design or component issue, as similar oil consumption problems have been widely reported by other Tiguan owners. I am submitting this complaint to document the issue and request further review. The issue of oil cosumption was reported after the third or fourth oil change before the 50,000 miles waranty.
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all problems of the 2020 Volkswagen Tiguan
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