Gas leak Aircontioning please advice

[hans]

My X5 E70

After the winter was over we started the AC and I noticed it was not cool, checked 21 Oct. with BMW in Adelaide and found gas level low and gas was refilled with and colour indicator in it.

Went back 14 Dec and the yellow colour indicated the gas leak in the evaporator.

The total cost for the repair is estimated to be A$ 3000.- as the car was just 100 days out of the warranty I was promised no parts cost A$1500.- but not the labour cost A1500.00 and the gas cost A$ ??

Now the new gas is in we noticed that the AC has never been so cold and we have the strong feeling that the unit has been leaking for a long long time and well before the end of warranty, perhaps from new.

Now to come to the point:

Car warranty end 13 Juli 2010
Gas leak confirmed by BMW 21 Oct 2010 , so 100 days after the expiry of the warranty.

My intention is that I drive the car for for a period longer that 100 days say 130 days and when the AC is still cold , so there is still gas in the unit I proof that the leak started well before the expiry of the warranty period.

I am not sure whether BMW will accept this, if not what to do, I must admit they are nice people with a good service.

Any advice is appreciated

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