What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks
Why does our car always have misty windows?
My wife has a 2013 Nissan Micra and finds in certain conditions that the windows severely mist up, even on a dry day. We have checked there are no damp carpets, no damp patches under the spare wheel nor under the scuttle and we had the pollen filter changed. The problem is partly cured with the windows open and heater on, or even using the 'on/off ' air conditioning, but the rear windows remain misted. Could there be a vent that may be blocked?
Asked on 29 January 2020 by Michael Greenhalgh
Answered by
Dan Powell
The air conditioning should never be switched off. It's designed to be used in conjunction with the heating system at all times (not just in the summer). Turning the A/C off for long periods will cause the joints to dry out and allow the coolant gas to escape. It also increases the risk of the compressor seizing up. If the windows are clean and there are no obvious drainage blockages, I imagine misting is being caused by faulty air conditioning. It probably requires a regas.
Similar questions
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?
My lovely new Toyota C-HR's windscreen developed a crack whilst sitting on the drive overnight. I took it to the dealer and after a few days was informed that it would be fixed under warranty. However,...
I recently took my Volkswagen Touareg for its first ever service, I've owned it since new, and one of the issues was a fault on the lights sensor. This is part of the windscreen and they tell me that the...
.jpg)
