I think i have the same issue - picked up a 2011 118 tsi 1.4 manual & it
sounds rough when cold but smoothes out as soon as it warms up... Also i
notice that when the car is in second gear & the accelerator is pressed
down fully, there is a vibrating? sound only for a second or less that
comes up... but is does not happen after the car has run for half hr or so.
Does anyone else have this?
Very common problem, almost every "old" tsi118 had it. Solution is very
simple: there is a software update of ECU, your dealer can do it in 1 hour.
Ask for the "24s4 service campaign". Bye!
the tubes under the intake might be popped out. the hard tube that goes
down on the right on the intake. mine is doing the same thing. I pushed it
back in and works fine