Arthur,

when you said the magic words, "... on the E320 the ETC sensor [B11/3] feeds the HFM-SFI module (N3/4) . . ", you said it all. The two system ARE completely different and my mod would not work!

And further, my mod is probably ONLY good for '94 S500 cars. In '95, they combined a "bunch" of modules into one, and went to HFM instead of LH. I'll bet that it won't work on the 95, 96 and on S500s because of this.

Where you temperature gauge is driven from a separate sensor, mine is driven through the LH-SFI module to the instrument cluster panel. The input for this is from the four terminal ECT sensor (B11/2). A lot of differences!!

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Regards . . . . JimF
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'94 S500 Cpe

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