Denso CM5594 A/C Compressor Mercedes W211 W220 W203 Vito S280 S350 S430 S500 7/00 - 03 C240 C320 6/00 C215 CL500How do you know if your air condition compressor fails? No cool air: If the compressor fails, the air conditioning unit will no longer produce cool air. This is one of the most obvious signs that the compressor is not working properly. Strange noises: If you hear strange noises coming from the compressor, such as clicking, grinding or buzzing, this could be a sign of a failure. Leakage: A failing compressor may also leak refrigerant or oil, which can