C240 windshield wipers
It's possible to "lightly" push the stalk button in to initiate a single (manual) swipe, for those ocassions when you hit a puddle and get splashed.
To go straight to wash/wipe, I think you have to be more aggressive. Push the button in with one, decisive motion, to the stop position. I think you will see the washers function at the same time as the wipers.
BTW, you can also use the single wipe function even when the sensor mode is on. I sometimes use this if I'm stopped and there's a fine mist on the windshield that wasn't sufficient to start an auto swipe.



