I have a 2010 Jetta Wolfsburg with 43,000 miles on it and I've been having nothing but issues with misfires. Since I bought the car in 2010 I've noticed a slight shake or miss at idle on a cold start, but it went away after the car warmed up. In June I was driving along and all of a sudden it started shaking horribly and the CEL + EPC lights came on. I took it to the dealer and after three weeks of diagnosing they figured out that 3 fuel injectors failed and a valve spring broke. I got the car back and it ran very smooth for a few weeks and now is doing the shaking at idle again but seems worse than before. I've replaced the spark plugs and have R8 coil packs on the way. Nothing seems to help and I keep getting random misfires on all 4 cylinders when I do logs. Any ideas of what this could be? I only have powertrain warranty left, but might end up having to take it to the dealer again. Any help would be much appreciated!
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