Why wasn't I told my air con should have a re-gas every two years?

I have suspected that the air con on my 2015 Nissan Qashqai has not been particularly effective. A recent 200 mile journey in hot sunshine convinced me that it is totally ineffective. My local dealer tells...

Did the emissions fix cause my aircon to fail?

I had my SEAT Leon fixed because of the emissions scandal. Shortly afterwards, the aircon failed - the compressor is kaput. I had it fixed for £804. Could this be related to the fix? The car has done 50000...

Is it true that air-con needs servicing every two years?

The air-con in my van does not seem to do much. Is it true it needs servicing every two years?

How worthwhile would it be to get an air con regas done on my 10 year old car?

How worthwhile would it be to get the air con regas done on my 10 year old Audi TT? It's done 49,300 miles.

How much should it cost to regass my i10's air con?

Is it fair that I have to pay £292 for air conditioning regassing on a 2-year old Hyundai i10? Apparently this model uses the new (and very expensive) R1234yf environmentally friendly refrigerant and the...