Thread: 280se auto
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Old 03-26-2002, 12:21 AM
mikemover's Avatar
mikemover mikemover is offline
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Join Date: Aug 2001
Location: Atlanta, GA
Posts: 5,514
That is what I think MB calls the "diagnostic socket" or "plug". Something like that. On a diesel car like mine, there is a tachometer amp plugged into it to make the tach work. On a gas engine, an RPM counter device can be plugged into it at the dealer/shop/garage for various diagnostic purposes.

1979 300 SD
350,000 miles
1982 300D-gone---sold to a buddy
1985 300TD
270,000 miles
1994 E320
not my favorite, but the wife wanted it
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