Mercedes-Benz E450 air conditioner blowing warm air on passenger side after repair on Mercedes-Benz E450

Some Mercedes-Benz E450 owners report experiencing warm air blowing on the passenger side of their vehicle's air conditioning system after repairs. This issue may stem from low or overcharged refrigerant, which can lead to inconsistent temperature output. Additionally, a faulty blend door actuator is often cited as a cause for the temperature discrepancy between the driver's and passenger's sides. Some owners also find that a dirty or clogged condenser contributes to the warm air problem. To resolve these issues, it is recommended that owners check the refrigerant level, have a certified technician inspect the blend door actuator, and ensure the condenser is clean and unobstructed. If the problem persists, consulting with a professional at a Mercedes-Benz dealership is advisable for a comprehensive inspection and solution.