I've done 70k miles in 2.5 years in my 2004 1.9 VAG TDi 150. I've had to change the cam belt, and alternator in that time, plus the usual, tyres, brakes etc. It's done 120k now, and still starts 1st time every time. I get about 50mpg out of her, and I have a heavy right foot. I do have a engine warning light on, about my glow plugs, but I've changed them, and it's still on. It went out for a few months when I changed a fuse. It's only just come back on and I need to check the fuse again.