on this 77 300D (W123) then I turn on either turn signal, or the hazard I get a buzzing from under the hazard switch.
All lights work except the left dash arrow, no blink, just buzz.
Sounds like a flasher to me?
IS this part of the hazardswitch, or just causing it to buzz, and is located somewhere else, if so where,

thanks
Doug

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83 300SD Dark Silver Dark brown inside

need to replace the hazard switch in the center console. Also check for corrison at the connector

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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)

IIRC, on those the relay is part of the switch. I suspect what you're hearing is relay chatter.

ouch! they are proud of that switch!

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83 300SD Dark Silver Dark brown inside

Im sure someone on this forum has one

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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)