How can I make my Depo Euro lights into DRL's?
 

How can I make my yet-to-be-installed Depo Euro lights into Daytime Running Lights? I saw a few people who said they did that.

1991 300d, 220k

Easiest way would be to get a very bright LED in the city light socket and wire to a circuit that's comes on with ign power.

IIRC I wired the city lights as DRLs in my ‘87 300D off a wire at the glow relay.

I didn’t use LED bulbs though. You hardly notice the feeble incandescent city lights in daylight. Definitely get something brighter.

Sixto
98 E320s sedan and wagon
02 C320 wagon

https://mbworld.org/forums/slk-class-r170/635709-city-lights-factory-r170-headlights.html

In the above post I show city lights installed in aftermarket and OEM headlights.