On an evening last week, my wife and I were returning home from dining out. The engine in the 2010 Mk6 GTI (with 23K miles) suddenly started shaking badly with a dramatic loss of power accompanied by a lot of exhaust smoke and occasionally strong odor of gasoline. Next morning I checked the oil and sure enough, it reeked of fuel. With difficulty, I restarted the car and crept to the dealership less than a mile away.
The technician told me that injectors 3 and 4 were stuck open. They found faults P087 (low fuel rail pressure) , P0300 (random misfire), P053F (cold start pressure). There were also codes for misfires in cylinders 1, 3, and 4. They replaced all the injectors and seals, changed out the contaminated oil and filter with my GC 0W-30. BTW, the intake valve deposits were reported to be only slight. (Using Shell V-Power).
Surprised the bloody thing functioned at all. I realize there are other reports here of documented or suspected injector woes, but like mine they are isolated anecdotes. Any idea how prevalent these failures might be? I realize that some events are rare and sporadic. Others (like some of the things that afflicted the W8 Passat this car replaced) are more typical of certain designs. Not a lot of fun when this one happens.