Location of central locking elements on the front door
The vacuum from the engine intake manifold is supplied to a vacuum accumulator located in the luggage compartment, and from it to the system devices through a switch located on the left front door.
The vacuum accumulator makes it possible to block the locks ten times with the engine off, after which the blocking can be done manually if necessary (e.g. if the engine does not start).
Central locking system
1 - vacuum door drive; 2 - drive rod (front passenger door); 3 - drive rod (rear doors); 4 - vacuum drive (fuel filler cap); 5 - vacuum drive (trunk lid); 6 - vacuum accumulator; 7 - vacuum switch; 8 - check valve; 11 - three-position distributor; 13 - check valve; 17 - connection; 18 - pressure spring; 22 - four-position distributor