1975 450 sl
 

Hi everyone. I just purchased a 1975 450 sl. I didn't get a manual with it and have a few questions. How do you turn on the fog lights? The dash lights don't work either. Can anyone help?

Thanks for your help. Do you know where the flasher relay is? My turn signals stay on and don't blink.

Flasher relay
 

Can the flasher relay affect the dash lights?

flasher
 

Thanks for your help. So the flasher relay is the actual flasher switch on the center console.

Reostat for Dash Lights
 

Keep playing with reostat knob and eventually the dash lights came on. Constant turning of the knob caused the contacts to clean themselves of any corrosion. It took about 20 minutes but well worth it.