to fill us in on this one. Seems like my indie (as good a mercedes tech I've ever met, spent many years as a master at the local dealer) used what looked like a HVAC vaccum line (small diamieter) for the mod and he knew right where to tap into the hoses for what looked like a small bypass for the ICV. Like I said if you look at a 87 or later V8 I think you will see this already done by the factory. What we need is a pic from someone who has the ICV with the small bypass tubing installed from the factory and one of our resident expert's take on the subject. Don't go drillin on no mercedes based on my say!

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65 190d sold
85 380SE sold
87 560 SL 180K
84 380SE 96K (mint)