My mk6 GTI has 82K miles.
Already this year my air intake manifold has had to be replaced (flaps not opening/closing properly issue and causing the engine management light to come on), and I've broken down on the motorway twice in just a few months. First time was a blown coil pack, so I replaced all four with uprated APR ones and brand new Iridium spark plugs. Just a few weeks later I had a full service, and just two days after that a fuel injector has now failed (stuck open) and ruining the brand new engine oil and filter.
My car could have failed at any time on a million visits to the shops or my friend's house, but no, it decided to fail when I really needed it to get to a job interview, and on a piece of motorway that didn't have a hard shoulder (fortunately there was an emergency bay).
Cost - over £1,000 to replace all 4 injectors (and you should really do all 4 at the same time), and that's at an independent.
About 20,000 miles ago I've also had to have the clutch and bearing replaced because of a strange noise, and a rubber seal in the engine due to an oil leak.
Is there anything more that can possibly go wrong with these cars? Is it time for a new car?