Air con pulley

[Alahind]

My drive belt just snapped on my seat exeo. And the air con pulley looks rough should I get the air con unit replaced

 

[nd-photo.nl]

You can usually only replace the pulley. I did just that on my Mercedes CLS55. The pulley costs a fraction from the complete compressor. Its a bit of a hassle to get it replaced and usually involves a special tool to get it off.

If you replace the compressor, the system needs to be drained & refilled off course

 

[nd-photo.nl]

Old vs new pulley on my W219 Mercedes CLS

And the special 3-prong tool