As per subject line, the climate control seems to have packed-in on my car. All the lights and controls behave as normal. The green light on the snowflake symbol comes on when pressed and the fan/blower kicks in, suggesting that the system is trying to control the cabin temperature. However, the air never comes out at anything less than ambient. The heating function still works.
I must confess that I cannot be sure whether the aircon failure is the culmination of a gradual reduction in efficiency, or whether it is a sudden fault. It came to light about three weeks back, when the missus borrowed the car for a long trip on a very hot day. I had several, increasingly desperate phone calls from her, asking how to get the aircon working. I ran through all the adjustments I could think of, but somehow imagined that she must have failed to follow instructions. When I got the car back, it transpired that the system was indeed failing to produce cold air, no matter what.
Hoping that low refrigerant level might be the root cause of the problem, I took the car to Kwik Fit for vacuum removal and replacement. No change (but no charge either, since I didn't get my =or>10% reduction in air temperature).
I have checked fuses 6, 77 and 88 which, according to the fusebox diagram, are involved in aircon. No problems with these.
So, my question is, where to next? Is there anything else I can easily check before I resign myself to GBH of the wallet at a garage or aircon specialist? Incidentally, would people here recommend an aircon specialist or a BMW dealer?