It's up to you in the end really. If you do go to see it, ask to look in the log book to see what kinda service history it has. Hopefully some stuff has been changed reletively recently, meaning less things to go wrong in the neer future. Bushings, brake lines, brake discs etc. etc. all wear and will need replacing at some point, so keep an eye out for these in the service book. Listen for rattling and vibrating in the steering wheel if you test drive, to indicate that bushings are worn (not a massive job to replace, but time consuming, so quite expensive). Have a feel of one of the front brake discs, checking how much lip is on the outer edge, there shouldn't be much (~1mm), if it feels excessive, then could mean that the break discs will need changing soon (again a few hundred quid).
Are those the factory wheels? They could be, but if they're not, then it could mean that a boy racer owned it previously, meaning aggressive driving = more wear. Big wheels will also mean expensive tyres remember.
From my experience of driving high milers (parents had a Rover 400 that had over 210,000 when it was scrapped), things do start going wrong when you're over the 160,000 mark, and that was a diesel. It's innevitable that there is going to be wear, but it's tough to know ifthings will go wrong. With that kinda miliage, it's down to pot luck really, you could buy it and never have a problem, or you could spend £100's if not £1,000's at the next MOT. Remember that parts for VW's are expensive, so costs can mount up very quickly.
I recently gambled with a BMW to some degree. It's a 52 plate 320d and had 93,000 on the clock when I bought it. Cost me £4,500. I've not had anything go wrong yet, but did have to change two back tyres at £80 each. The airbag warning light has come up on the dash meaning there's something wrong with the system somwhere, luckily I know someone with the correct diagnostic kit to test it. The brake pads are on their way out, the handbrake cable needs tightening / replacing, and either one of the back wheels haven't been balanced propperly, or a wheel bearing's also going (I'll have to investigate when I have time). This just shows that plenty of little things can start going, even on a car two years newer and 65,000 less miles. I'm planning to do most the repairs myself, but even these little things could cost a couple of hundred in a garage.