Disassembling and assembling the door lock
1. Remove the outer door handle.
2. Remove the door molding.
3. Remove the window regulator device.
4. Unscrew screws 1 (tightening torque = 8 Nm).
5. Loosen the screws securing the door reinforcement 2 and lower the door reinforcement down.
(The front mounting screw is not shown in the picture).
6. Having unhooked the retaining clip 4 of the control rod 3, pull the door lock together with the rod 5 and the control rod 3 out through the mounting hole from the door.
(Information taken from this resource skodabook.ru)