The heated nozzles are kinda neat and kinda useless. The other day when my car was frosty, I started the engine, and by the time I had scraped the windscreen, the nozzles, back window and mirrors were steaming.

When I say kinda useless... Another time I was driving to work early in the morning on a cold day, I squirted the washer, and the water instantly froze to the windscreen! (I now get the bmw anti-freezing washer concentrate).

Mercedes have thought it through a bit more, I've seen one that had a coil of coolant pipe in the washer reservoir, with a low temp (40-50celcius???) thermostat to keep the washer fluid warm when the car is running, but not at full coolant temperature to evaporate the washer fluid...


The simplest way, which hasn't been mentioned yet, to see if your car has heated nozzles, is to touch the nozzle after the car has been running. The nozzles are heated all the time just like the mirrors.