New member having problems with my 2005 a4 qutro

alright so i got the car like 3 days ago and i go start it up and let it warm up and then my car start to get a bump bump feeling like  upgraded cams then when i drive  i get  no pull at all  i think it is the timing belt or  probly misfireing any  tips on how  to find out and fix it would  be greatly  apreceated

probably the coil packs

Yeah, check your coilpacks/plugs.
 

order some hitachi E coilpacks... for some reason our OEM coilpacks seem to go randomly... R is the latest revision of them, less likely to blow but still can go....

Thanks everyone
 
Brought in the car and it ended up eiong  the ignition coil got it replaced and drove itm the same day in the snow AWD kicks ass