How do I stop water leaks in my car through the air vents?

I have had problems with water getting into the front of my car through the air vents if the drain in the air box gets blocked, usually by leaves. How can I stop this?

Asked on 7 December 2018 by Bill Fryers

Answered by Honest John
Everyone has this problem. The answer is to regularly clear the drains. The best tool for this is a 'teapot spout brush'.
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