When the low-oil light works properly it's a nice feature. When it doesn't it's a PITA.

My '96 beeps and says "low oil" occasionally even though it has a brand-new sensor. Since the engine uses no oil, it mostly gets ignored. This may simply be another problem with the wiring of that era and the "environmentally friendly" insulation. OTOH, my '87, which does use (leak, burn) oil, illuminates its light when the oil level is down to the bottom mark on the dipstick. Then I know it's time to add or change.

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .343,000 miles Wife's car
2005 E320 CDI . . 148,000 miles My car
Santa Rosa population 177,300 (2026 projected)
Total. . . . . . . . . . . . 668,300
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970