In the last year mine has had.
New turbo
New downpipe
New HPFP
New intercooler
New clutch and DMF
New injectors
New front brake kit
New map
Drove it 3000 miles and a spark plug blew which lead to it not running right.
Then
New LPFP
New engine with a sh*t load of work done
New engine and gearbox mounts
New turbo core
Another new LPFP
Whole new exhaust
New map
New gearbox
And it still makes a sh*tty rattling noise when engaging gear and at low rpm (sometimes on idle), also something knocks at the front end sometimes, also a rattly flappy noise. I actually looked at Diesel Seat Leon's last weekend I was so fed up.
Then I took it for a spank and couldn't stop giggling like a twat, it's a stupid terrible car that drives me mad but I do love it.
Your last paragraph epitomises the whole mk5 GTI experience for me Dan. When it's good, it's brilliant fun. When it's bad, it's irritating.
Funny thing is, no amount of reviews from the likes of Evo ever scratched the surface anywhere near enough to hint at the long term running issues the majority of us experience. Reviewed on a good day, it really is close to that 5 star car it was touted as. The issues though - especially when we're turning the power up by 50bhp at the conservative end of the modding scale - start to rear their head years after motoring journalists have had their brief fun.
If my car was bone standard I'm sure right now I'd be considering selling. But I think you get to a point where you've 'invested' so much in it that you can't help feeling commited to seeing it through. It could be that once I find the cause of this misfire it remains healthy and reliable for months and years to come. Or I might just end up with some other annoyingly intermittent problem taking its place, and it's that worry - expecting something to go wrong - that takes the shine off the whole experience. The modding budget is no longer a modding budget, more a 'keeping it alive' budget.
On that note, it developed a new noise yesterday. Going slowly over a series of speed bumps (the horrible square ones) it's started groaning from the front. I don't know if it's a damper, bush, something to do with the undertray, or something I'll never diagnose. I'm only 30mm down, and nothing fouled as far as I know. So yeah, one more issue added to the list. How surprising.