One problem related to gas recirculation valve (egr valve) has been reported for the 2015 Volkswagen GTI. The most recently reported issues are listed below.
The clutch operation in my 2015 volkswage Gti (6 speed manual transmission) is malfunctioning to such a degree that I was almost in an accident and now fear for my safety. Clutch operation in the vehicle has become unpredictable, when depressed the clutch pedal will remain on the floor after the pedal is released, thus preventing the vehicle from accelerating. This has happened multiple times while stationary in traffic, while in motion and while accelerating. Most recently while attempting to merge onto a busy highway the clutch pedal stuck to the floor, this nearly forced me to take evasive steps into a construction zone. After this incident I brought the vehicle to the Volkswagen dealership for diagnosis and service. I have heard of several alarmingly similar reports from other 2015 Gti owners where the cause of the issue was a failed engine bearing that results in side-to-side crankshaft movement in the engine.