Evidently, I also have an amp. There is a silver box under the dash that appears to be connected to actuator wiring. There is no cruise control switch on the steering wheel. So either it had cruise control originally and the switch was removed, or it was never installed. Probably the latter, since this one also has no right hand mirror, or tachometer, indicating that it had the fewest options at delivery.

If my assessment is correct, where would I find the speed sensor? If it only lacks the switch, I might try and retrofit a switch. Anyone else have a 240D with almost cruise control????

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1976 240D
1987 560SL
2007 E320 Bluetec
1998 C280 (now son’s car)
1982 240D Manual - Sold