1993 240 DL SEDAN - Headlights won't turn on, but high beams work. Changed both headlamps, and relay under hood and light switch. Still no lights. Anyone have any suggestions. Thanks

Most likely the Headlight relay, located (electrically) after the dash switch and before the underhood relay (which is just for switching HI/LO beams and flashing HI beams from the stalk switch).

I'm not sure of the physical location on the '93. The Bentley shows it behind the center dash vents (it's #124 in wiring diagram). But I know on the '86 it lives beneath the floor hump next to the driver's left foot.

Maybe some others will tell you where to find it. It's a Bosch "cube" relay with 2 output terminals, 1 for the headlights and 1 for the parking lights.
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Bruce Young
'93 940-NA (current) — 240s (one V8) — 140s — 122s — since '63.

the relay should be on the fire wall right next to the steering column under the dash. if it is bad, check to see if it is rusted or has water in it. every one I have seen go bad has been due to water damage seeping in from under the dash

That's where it is on two of our 89s and on the 90, but by 91 it was moved to the rail above the center console alongside the door lock relays. Also it had a heavier wire and connector on the wire that was prone to overheating.