http://www.compressor-express.com/ac-compressor/renault/Renault-56-CVC-PV6
Some Renault Megane are built with
the same air conditioning compressor. The Original Equipment Manufacturer
Numbers (OEM numbers) are Renault 8200421255, 8200688814, 8200892677.
The air-conditioning system of these
vehicles was assembled with a Delphi-Harrison CVC compressor. Manufacturer numbers: Delphi-Harrison 1140092.
These ac units seem to be interchangeable.