air condition

i just bought an audi a4 2.8 1999, i live in canada and it is freaking cold ... but i was wondering if it is possible to check if the air conditioning works. when i push the button the light just flashes on for a second and then off ... if anyone can help i would appreciate it

..not sure how low the temperature in the climate control goes...but put it down as low as it'll go and see if it comes on...