[Konstantinos]

You declared it and got the vehicle ID here:

pawn Код:

new vehicleid = GetPlayerVehicleID(playerid);

so remove the other 2 declarations of "vehicleid" in that callback:

pawn Код:

new vehicleid, engine, lights, alarm, doors, bonnet, boot, objective;

should be:

pawn Код:

new engine, lights, alarm, doors, bonnet, boot, objective;