« Reply #22 on: 04 August 2024, 22:20 »
I’ve never had heated washer jets. As you’ve said, if the washer fluid does freeze in the tubing then it kind of defeats the object of having heated washer jets. IMHO washer fluid of the correct concentration for the weather conditions is the key, which probably also reduces the need for heated washer jets.
Pretty sure the purpose of the heated nozzles is to stop them freezing over, not to stop the washer fluid freezing. The washer fluid will only freeze if it is at the wrong concentration for the conditions.
Yes, you’re absolutely correct, but even with a winter mix, if it gets colder than it’s mixed for, those tubing lines are very exposed, and with so little liquid in them they could easily freeze. so having it drain back is a sensible precaution if indeed it is by design.

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