my bmw 325i 1992 m50 a/c unable or shut off switch can not be found on my car

What is your question?

I been searching all over for this a/c unable, or cut-off switch on my BMW 325i 1992 m50 and can not located on my car nowhere, please help me. My ac does not work, it only blown hot air, and I did everything to locate the problem and it goes back to this switch. no noise or leaked

What makes this problem better or worse?

it just blow hot air.

How long has your 1992 BMW 325i had this problem?

2 months