I was fooling 'round under the3 dashboard and noticed an unused terminal on the light switch ~ it comes live when the light switch is in the park light position and goes out in all other positions .

My question : ? where does the park light indicator bulb go in European models ? .

I don't see any unused places .

Pictures of same would help .

TIA,

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

Center of the rotary headlamp switch illuminates with the fog lights (low beams and regular fog lamps) and when
the rear fog parking lamps are activated on euro models (FL & RL or FR & RR parkings lights).

Wires to bulbs (for this second function) are missing in taillight housings on US spec models.
Circuit doesn't complete, so lamp doesn't illuminate on US spec models.

Does the W123 headlight switch light up?

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78 W116 300SD 'Desert Rose' new as of 01/26/2014
79 W116 300SD 'Stormcloud' RIP 04/11/2022

Thanx Alec ;

I was hoping to use that for the rear fog light but what the hey, right ? .

Another Q. : do the front fog lights have a relay or are they powered via the headlight switch ? .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

Front fog lamps directly powered by headlamp switch.

__________________
78 W116 300SD 'Desert Rose' new as of 01/26/2014
79 W116 300SD 'Stormcloud' RIP 04/11/2022

I thought so .

My switch is apparently dirty as they stopped working and I want to fix them .

? Maybe I can spray Electro - Contact Cleaner in the shaft after I disconnect the ground cable ? .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

Try cleaning the fuse contacts first, disconnect the ground cable to the battery beforehand.

__________________
78 W116 300SD 'Desert Rose' new as of 01/26/2014
79 W116 300SD 'Stormcloud' RIP 04/11/2022

This may be of interest:

How-to: Get the rear foglight(s) working on a US w123 (links to photos)

__________________
Marc-André

W115 1975 300D "Geraldine"
W115 1976 300D parts/tutorial car

Thanx Fellas .

I always clean the fuse box and scrap the cheapo aluminum fuses the instant I buy anything these uses these ceramic fuses, I tested and the power seems good .

VW / Porsche partshaus' sell the proper ceramic fuses with the copper strips very cheaply .

Before they failed entirely, I could get the fog lamps to come on by fiddling the light switch .

This car's interior was completely filled with choking smoke they day I bought it, I couldn't see the dashboard and have been cleaning it ever since .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better