Sixto, you're too good! Can't I get away with anything any more??? Yes, the "extra" vacuum line feeds my "economy" gauge. The 4-gauge panel was 'borrowed' from an '88 300E gasser I found at Pick and Pull; the other three gauges are identical to the diesel versions I removed. The vacuum gauge warns me if my right foot gets too heavy and, should I have shifting problems down the road will help with the diagnosis.

Jeremy

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970