central locking system------1973/450sl
I am experiencing problems with my door and gas flap locks. The drivers door no longer locks the passenger door or gas flap.I used a mighty vac and found two lines that won't hold vacuum. One in the drivers door and the other from a Y connection just behind the trunk below the hardtop area. The vacuum lines run through the door and then disappear ending at a grommet just by the firewall/fender. I don't want to pull the line as I can't tell its routing. HELLLLLPP! thanks .PS does anyone have a vacuum schematic?