The battery is flat and the drivers door lock is not interacting whit the lock when I turn it, just goes around. And the rear lock is of course rusted beyond repair. How do I get to the battery? Slide something down along window to get to the locking mechanisme to open the door?

1. Spray some WD40/GT85 type stuff into the boot lock to try and open it.

2. Attempt to access bonnet catch by either removing bumper grille(s) and/or undertrays.

@RallyeSport I agree with @vrsTom up to a point:-

 

0) Attempt to release bonnet catch through top radiator grille first (I've seen it done).

It doesn't seem straight forward to access the bonnet lock. Can the door locking mechanism be easily modulated using a thin steel rod from between the door and the glass?

Anyone?

You're still not in and you first started trying in April???

https://www.briskoda.net/forums/topic/62098-flat-battery-and-locked-out/

I tried to de-rust the rear lock, no chance. Corroded beyond all hope. I got in thanks to the poor window lifts made by VAG. One of the half broken rear windows I managed to pull down so the wire snapped. But couldn't open any looks, when handles from the inside were pulled, they just went back to locked. But got the battery out to charge it. Should make a battery jump start cables attachments. How can i fix the driver door lock? Turning the key does nothing.