[iGetty]

pawn Код:

if(IsPlayerInRangeOfPoint(playerid, x, y, z))
{
    RepairVehicle(GetPlayerVehicleID(playerid));
    SetVehicleHealt(GetPlayerVehicleID(playerid), 1000.0);
    return 1;
}

Add that to a timer and then make it check every X seconds. That way it'll automatically repair when in range of that place.