ZielonaWielkaStopa wrote: And if the remote control was able to open the whole car for me, do I have to add this servo?
You should have it in the door or castle.
And why can't you check what's in the door?
Now the central one works with the key

, you don't have a remote control, so the remote control doesn't work.
Did you find the lock central? Original or added? You could unplug it and connect the bought one in its place.
Lanos like lanos, this one did not have an actuator, but as this auction is correctly described, with the cylinder you can see the plug.
http://allegro.pl/zamek-przod-przedni-lewy-chevrolet-aveo-02-11-i7276607676.html
It's an actuator. As it has contacts inside, the actuator is integrated inside the lock. At least for me, because the color of the cables does not match.
But why central control from the rear door?
http://allegro.pl/zamek-tyl-lewy-chevrolet-aveo-02-11-i6999273491.html
http://allegro.pl/zamek-drzwi-lewy-tyl-chevrolet-aveo-08r-i5380363039.html#thumb/2
Here it would be according to the diagram, in which from 4 to 5 actuators can be seen in various versions and years.
In Nubir, some had an actuator in the left door, others didn't. Equipment option.