(Another blue smoke thread)

I've read through the other threads about guys having oil probs but can't seem to see any with the same issue as i'm having right now.Basically,the car(180T LC) is using a fair amount of oil,prob topped up a litre or so this last month,no leaks i can see,and only way i know it's losing oil is when,and this doesn't happen all the time,i'm driving along and ease off the throttle,then when i put the foot down again,i can see a puff of blue smoke in my mirror,any ideas as to what the problem could be,cost for solving it etc,have it booked into dealers on wednesday,but would like an idea up front.
Cheers guys for any help received.

Thanks mate,has anyone had this happen to them,if so what kind of cost you looking at?

Hi mate,thanks for that,unfortunately,i ain't that competent with car mechanics,or have the tools or space to carry out any 'real' inspections.As for the car,it is running fine apart from the oil 'smoke puffs',although i have just done my very first logging with vag-com,so am looking for some feedback by all you guys who are converse with it.Will post the logs up as soon as i can.
Cheers.