Po410

[scoobytc]

Hi guys, i'm sure this has been covered before but i keep getting the engine light on despite a new air pump fitted and replacement changeover valve but my question is, does anyone have a diagram of exactly how and where the change over valve plumbs into as I think maybe I have a hose missing or have missed a connection somewhere. I have trawled the net but can find no diagrams. The car is a W204 C63 M156 engine and i just need a clear picture of where everything goes.

TIA

 

[AMGeed]

Can't help you myself but if you get no joy, take a run up to Ollie at PCS in Horndean and he'll sort it out.

Mercedes Benz & Smart Specialists | Prestige Car Service | Horndean, Hampshire

 

[scoobytc]

I may have to do that if I can't sort it myself, but i am thinking maybe i have the hoses round the wrong way. On the change over valve there are 2 stems a thicker one and a thinner one. Which stem is the vacuum to the maniford? thick or thin? I know one of the stems is the vacuum to the check valves I just think I may have them round the wrong way

TIA