[vwtdi130]

If you look in this picture my car has 2 of these valves, they are both connected and have the same part numbers, the only difference being the colour of the top. Do they both need replacing ?

 

[vwtdi130]

i have a 115 just was going to get a 130 but it fell through hence the username. Has anyone bought the vacuum pipe from halfords as there are 2 different sizes does anyone know what they are ?.