I've had a letter advising me to have my 60 Astra's air conditioning serviced - is it really necessary after only 18 months and 10000 miles? I don't recollect my 05 Astra ever having an air conditioning service in all the 5 years I owned it and it seemed to work ok (the filter may have been changed at some stage). I only covered 30000 miles and I must admit I didn't always remember to use the air con every week. This seems to indicate that my present air con shouldn't need servicing yet.