HOw to tell if ac blower motor or compressor bad on 1998 Mercedes-Benz CLK320

My air was working fine yesterday I turned ac off and a few minutes later went to turn on nothing ck all settings (defrost er etc.) nothing blows so I tend to think the blower motor how can I tell which is bad I chfuses unfortunately they were all good

Asked by for the 1998 Mercedes-Benz CLK320
if blower motor is bad would have no air volume, if compressor is bad would have either leaks, noise, or no cold air
1 more answer , 1 more comment
The blower motor supplies the air volume into the cabin. The compressor only activates the Freon within the system. Keep in mind there is a blower motor resistor that also provides power (at different levels) to the blower motor.
there is no change in air at different levels So Id say the blower motor it is
Is this a difficult job to replace
the blower motor?
Thank you very much