Probably the best source of factory information is the 1995 "Introduction into service" manual that MB issued. It describes the OM606 engine and the changes that were made in the W124 chassis. The manual (note that this is NOT the regular service manual) is 50 pages and the full title is "Model Year 1995 (USA) / Model 124.131." The MB number is S-2609-093. You can occasionally find the "Introduction into service" manual for sale here, on eBay, or books4cars.com.

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