air con | Ask Honest John

Ask Honest John

Most recently answered air con questions

My windscreen takes a long time to demist, is that normal?

I have a newish Skoda Karoq Scout. Recently, I returned to my car after an evening out and my car was so misted up, the windscreen took 15 minutes to clear. I booked the car into a Skoda garage to check...

Is £2000 to repair an air-con unit fair?

I have a 2011 Mercedes-Benz C-Class. The air-conditioning was giving out hot air on the nearside so I took it into the local independent who I use to service the car. They have found that whilst the air-conditioning...

Why does my air con make a grinding noise when I first turn it on?

I own a 2019 Suzuki Baleno. If the car has been sitting for a couple of days, the air con makes a grinding sound when it's first turned on. From then on, the air con just makes the usual click sound on...

Why isn't my air con working properly?

Does my air con unit need gas and, if so, where does it go? It doesn't seem to be very good at the moment.

Do I have to use my aircon all year round to keep it working properly?

You recently said: "All modern car ventilation systems are designed to be used with the air condition system switched on permanently. Switching it off for long periods will cause the seals and joints to...

Do I need to run the air con all the time to prevent issues?

The air conditioning in my 2011 Mazda MX-5 is working fine at the moment but I am a little concerned as I hardly ever use it and I have read that one should use it regularly. I like to lower the roof...

Can a car sitting around stationary cause the air con to break?

My 2018 Audi SQ7 is now on 28,000 miles. It has no air conditioning. When I start it, the light on the A/C button is initially on but goes out a few seconds later. After much chagrin in trying to get Audi...