Hi all, sorry my first post is requesting help! I have an A3 2.0 TDI (53 plate) which has covered 103,000 miles. Earlier today while pulling away and accelerating in 2nd gear (approx. 2,000-2,500rpm), I heard a pop and noticed quite a bit of smoke in the rear view mirror. After this the car has very little power which keeps cutting in and out causing a very slow juddery drive. No warning lights are on. I was just wondering if there is anything I can do, with my limited mechanical know-how, that will confirm what exactly the problem is? All suggestions welcome, cheers!