No joke... just take a look on eBay. There are tons of repair manuals and guides being offered there. Maybe it's also suitable for your car...
Simply type "repair* Golf" into the search bar.
Good luck.
I'm currently looking for a repair manual for an A6 C4 in the same way.
The only thing that comes to mind is our city library. They always have very current materials available, including things like VW models and even Golf 4s.
It's almost free, but it's located in Bielefeld. Is that also something you experience?
Thank you for your answers.
There's a repair manual available on eBay, but frankly, it's too expensive for me right now, especially since I'm currently in a vocational school and have to manage with a limited Meister-BAföG allowance of 150 euros.
To go to the city library, I would have to drive to the nearest town (I live in the countryside), but unfortunately, I don't have the time for that right now because school comes first.
Despite everything, thank you very much for your efforts.