Where is the low side airconditioning of c 230 kompressor?

The low side air conditioning service port on a Mercedes-Benz C230 Kompressor is typically located on the larger diameter refrigerant line, which runs from the evaporator to the compressor. It is usually found near the driver's side of the engine bay, close to the firewall. To ensure you are servicing the correct port, refer to the vehicle's service manual or look for a blue cap marking the low side port.