Thanks for all the replies chaps.
I agree in terms of trawling through reciepts and the service book - I don't and never have skimped on any car I've owned (in fact, car is now booked into VW tomorrow to check if the CCM is on the blink - see other window thread).
Like the other poster has alluded to, my car is 4.5 years old now and I don't want to change it but just wondering what will need spending on over the next 12 to 24 months.
Servicing, brakes and pads are wear and tear but I'm wondering whether spending say £2k (actual quote from VW) to replace the turbo and DM flywheel would be sensible on a car worth maybe around £9.5k.
When it comes to selling a car, knocking the price down is fine for "things" that need doing but that suggests the car is overpriced to start. Price fairly having taken these things into account compared to what else is out there should be the way forward :0)
I want to hold onto the car for a year or two but having to spend £2k without adding that value back in would make me think about trading it in.