The brake fluid, easy job though isn't it? Drain it out, then top up with new stuff, whilst bleeding?
The Mk4 system isn't the easiest on the planet to bleed, though. You'd be wise to buy a bleeding kit. & by the time you've done this..................................
Point taken. Definitely doesn't need doing at the moment though after one year. I'll leave it, and if it does come up on the MOT, will just get it done then.