I acquired a 1972 350sl (European) that I am restoring. It has been sitting for 15 years, and one of the problems I'm working on is the lighting circuit.
Here are the symptoms I have.
No dash lights (and no "dimmer" on the dash)
Right headlights inop
Foglamps inop

The car had a DOT conversion when it was imported in 1983. The "bifocal" euro headlamps were replaced with US versions. I checked with my VOM and I don't have power at the connector at the rt headlamp, but there is power for the t/s and parklamp. The left side is OK.
Are there separate relays for left and right headlamps? I have yet to get into the fuse box and relays as I don't have a schematic yet, but from what I've seen so far, the circuits on this car are quite basic.
Any info on the engineering methodology is appreciated.

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1972 350sl (European)