One problem related to fuel injection rail has been reported for the 2020 Volkswagen Tiguan. The most recently reported issues are listed below.
One of the fuel injectors cracked along with the fuel rail leading to a very large fuel leak. There was also an oil leak at the same time, but the origin has not been diagnosed. The vehicle was towed to the dealership to diagnose the problem and attempt repair. There were no warning lights, signs, or symptoms. I started the vehicle and drove approximately 20 ft to a stop sign, going under 10 mph, and all of a sudden smelled an extreme odor of gasoline. The check engine and other driver alerts came on.