Mercedes-Benz C250 AC not functioning on Mercedes-Benz C250

Some Mercedes-Benz C250 owners report experiencing issues with their AC system, including refrigerant leaks, compressor failures, and clogged cabin air filters. Many have identified low or overcharged refrigerant, compressor malfunctions, and dirty condenser or evaporator coils as common reasons for inadequate cooling. Additionally, some owners have encountered compressor lockup, where the compressor may become stuck in either the on or off position. If cold air is not blowing from the unit, it is recommended to seek professional repair, especially if the problem seems to resolve temporarily but recurs later. Some owners have also noted that they can troubleshoot the system, but complications may arise, such as the heat failing to operate correctly during colder conditions, potentially linked to the changeover valve affecting coolant flow. For a thorough diagnosis and repair, consulting a professional or visiting a Mercedes-Benz dealership is advisable.