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Hi ANyone has pictures or diagrams for the vacuum system on S420 particularly the charcoal canister and checkvalve. Also does anyone know where the controler is located . I believe I have a vacuum leak but not sure where. The leak is causing a P0455 code. It only happens while in idle. It never happens when traveling with engine speed above 1000 rpm even for several hours. Thanks
 

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I too am trying to find the location of my charcoal Evap cannister on a 1999 s420, any help would be appreciated, thanks, Eric
 

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1994 s600 coupe
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the best thing to do with the charcoal canister purge system, is defeat it. disconnect the vacuum lines from the throttle body(s), plug them, and crack the gas cap loose, don't tighten it more than 1/4 turn from off. let it vent to atmosphere. block any vacuum lines to the system- presto you fixed the vacuum leak. old cars pre-1973 didn't even have those canisters at all. they are nothing but a big pita.
 
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