I have read all thru this forum and looked on alldata and I cannot find anything near the brake booster with a green vacuum line going to it...I have a code26 and trying to troubleshoot...but gotta find the thing first.

I have a 94 S500....is it some place different on this model?

Thanks

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1995 E300 Diesel
1994 E320
1999 C230K
1994 S500 W140
1990 300 SEL