4motion4sure

hi all ive recently bought my first vw and its a 2003 4mo it has a few niggles with it which i dont kno if are ment to be as they are? :/ 1. the gear change from first to second is slightley jerky/clunky could this be a linkage?? 2. on low revs wen out of gear the engine sounds as if its "missing" from idle to about 2500 revs? is this normal due to it being v6? its ever so slight but i can hear a rumble