Lou B

Was the automatic headlight dimmer on my 2018 S560 standard equipment or an option? It's not working, and I don't want to pursue this if it wasn't standard equipment.

Tom in Austin

Yes, high beams operate automatically on W222s when the light selector switch is set to auto mode and the turn signal lever is placed in the forward position.

SW20S

Yep, its standard...

Are your headlights set to AUTO or are they turned on manually? The auto high beams only work when the headlights are set to AUTO.

Lou B

Thanks very much to you both and to any other responders.

The question arose last night - of course - since it was dark, in a 90 minute trip and back. The wife was driving, and of course since she only usually drive my car during the day, she's unfamiliar with the dash controls. I will pass on your instructive device.

As it turned out, whilst we were waiting for someone, she found the solution, BUT since she neglected to tell me, I've proceeded as above.

We're both now happy, and appreciative.