WolfLucifer

Update on this, ended up changing 3 fuel injectors. The shaking is still there on cold start but goes away in 30'ish seconds or less. But now no more smoke is coming out of the exhaust so at least that's good for now. Next up I guess is spark plugs that could be causing the shake on cold start?

Thank you for the fast response. Wouldn't the vibrations be apparent while driving as well if it was the mount? My main guess right now is spark plugs/coil pack?(not sure if diesel has those)? Can I test MAF sensor with the Carly adapter?

Hello everyone, Search the internet wide but couldn't find my exact problem. I have 2008 AUDI A3 Sportback 125kW. Couple of months back my fuel injectors failed and were replaced with refurbished ones. Now from time to time on idle the engine shakes a lot, I do hear some sort of knocking noise when it happens but I am not sure if its a misfire or not. ECU doesnt give any error codes what so ever so i am baffled. The shake usually stops after couple of minutes. Now its -10-14C and the shakes starts after driving a little bit then dissapears as engine warms up. I am thinking it could be spark plugs but then ECU should give an error, fuel injectors should give an error as well. How can i diagnose this? I have Carly OBD thingy for diagnostics so maybe i can look into something with it to identify what is wrong?