Hey all i got a AGU 1.8T 20V out of the crashed Gti i bought not to long ago and just wanted to know, what are the main things to look out for on these motors ?

im going to do your basic stuff like plugs oil and filter and replace a few gaskets that are leaking , but what else should i be doing while the motors out ?

was thinking about doing the cam/timing belt ? ... i also herd these motors have a sludge problem if oils not changed on time ?

any input or information would be great