Good used tested reservoir tank as shown. Sits on top of gas tank in trunk. If this is leaking your door locks will never work. Sometimes these crack or have very small leaks. Does not include the hard vacuum line or the rubber plug at the connection pointto the tank.
Fits 123 1977 to 1985 240D 300D 300CD
W123 Sedan and Coupe Vacuum Reservoir Tank - USED