Here in Australia, the temperature has significantly increased (it's summer). When the air conditioner is on the third setting, with an outside temperature of 38C, there are moments, when instead of cold air, hot air from outside the cabin is blowing through the vents (for around 20-30 seconds).
I assume this would indicate a need for a re-gas. The air conditioning system is around 8 years old, with no alterations.
Is this the only solution, or could there be another reason for the loss in cooling capacity?

Regards,
OTK