1982 w123 mercedes 200 gray market

[lost1]

I am trying to find parts for my car but because it is gray market no parts stores or even dealerships have any idea how to help me. My car is near perfect for a 1982 with 117,000km. I am trying to do a tune up as it has a slight studder upon stand still acceleration.

I currently am searching for a fuel filter(where is it in the car), an Air filter and I want to replace my fuel hoses from the gas tank and from fuel pump to carburetor.

I have already changed the plugs, wires rotor and dis. cap.

Any assistance would be greatly appreciated

Martin