Faults:
Coil pack - 80000 KMs. Car still got me home, even though it was vibrating like crazy on the motorway. Fixed it myself. Replaced all 4 for €30.
Interior trim - Pieces are literally falling off in my hand. So far: Grab handle on driver's door, parts of the driver's door trim, plastic panel on floor that covers wires, clips that hold down floor mats, roof material is coming loose, passenger side window switch broke off, uncountable rattles from loose trim around the car.
Windows - The windows in this car have annoyed me so much that I disconnected them last week. The regulator and motor were replaced on the driver's side, and the regulator on the passenger side. The window is far too sensitive, ie going back down on its own if it hits the slightest bit of dirt or a leaf etc. So even on the rare occasion that they are working, they don't work very well.
Driver's seat - Wow, this was a scary one. A kid went in front of my car on his bike, and I slammed on the brakes. My seat slid forward, and came off the rails. Funnily enough, Volkswagen were keen to keep this quiet. Fitted a new seat to the car, new rails on the floor, threw in a free service and a brand new turbo diesel Passat as a courtesy car while it was being done.
General Comments:
Handling: Very good. I have Pirelli wheels on the car, and it handles great. not complaints.
Safety: This car feels solid, has more airbags than you can count, and has a great safety record. You really do feel safe in this car. (apart from the seat incident: see above)
Performance: This car is seriously underpowered. You have to really put the foot down to get it moving. Really uninspiring to drive. Motorway driving is a real pain.
Build quality: Worst I have ever seen. The inside of my car is literally falling apart. I'd expect it if I was buying a €500 first car, but not a 2004 golf. Volkswagen should be embarrassed by the trim in this car.
Engine: Bulletproof. Never once let me down. The coil pack was the only thing to go on this car in 120,000 KMs, and even then the car kept driving, and only cost me €30 to fix.
Comfort: some nice extras like carbon inserts on the interior, lumbar support, rain sensor controlled wipers, automatic lights. Seats are very comfortable in the front and back.
Running costs: Very uneconomical car. Drinks petrol. The car is too big for the 1.4 engine, so it's always working hard. I don't know much about dealer costs as I service the car myself.
To summarise, This car will not let you down. The engine is indestructible. The interior is pathetic however, and the car is falling apart.
But if you want superb reliability, and don't mind a crappy interior and high fuel costs, this car is a good choice. The car itself is quite boring and dull, but I would buy another Volkswagen. Just a more powerful diesel.