Ask Honest John

Most recently answered air con questions
I recently bought a second hand Toyota Aygo Black 1.0L with air con. How often should it be used? Does it reduce mpg greatly if used in this small car?
We are thinking of purchasing a Dacia Sandero Stepway, and would like to know what is your opinion of the small petrol turbo engine versus the diesel? Our mileage is light. Would the small petrol engine...
Do you know if there is some sort of mesh guard to fit over the front lower grill of a Renault Modus to protect the aircon condenser from road debris?
My daughter has been advised by the main dealer that the condenser and high pressure pipe of her 2009 Toyota Yaris TR 5dr 1.33 VVT-i are leaking at the joint and a new unit is required at a fitted price...
The aircon on my 30-month-old (23,000 mile) Jaguar XF suddenly stopped working recently when on the M11. My local dealer (from whom I bought the car) tells me the aircon unit has become punctured, possibly...
The air conditioning in my two-year-old Skoda Yeti has been non-existent this summer. I finally had it looked at and my local dealer has told me that the condenser has been damaged by a stone flying up...
Which has the least effect on fuel consumption: having the air conditioning on or opening a window?
The air conditioning on my 2011 Volkswagen Golf has failed. My local dealer has found the gas level to be low, but couldn't source the leak and will recharge the system with a dye to try to find it. They...
I have identified three cars that meet our needs of automatic gearbox, ease of access, cruise control, aircon, economic petrol engine due to low usage (max 5000 miles pa). They are the KIA Venga, Ford...
I have a 2009 Mercedes-Benz. Should the air conditioning be recharged?