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Marty
Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 53161
Experience:  Bosch Certified Master Tech. Over 35 years experience.
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E320: dual control a/c 2005 e320 right side is cold. left side

Customer Question

dual control a/c 2005 e320 right side is cold. left side is not cold, same with the rear outlet.
Submitted: 1 year ago.
Category: Mercedes
Expert:  Marty replied 1 year ago.
Hi, the most common cause of poor cooling on the left side of the car is a low refrigerant charge. The first thing that you should do for this problem is have the a/c system evacuated and recharged. If the system is low on refrigerant the left side will be the first side to blow warm due to the design of the a/c evaporator. Other possibilities is a fault with the temperature blend door but low refrigerant is the more common problem.
Let me know if you have any questions. Please be sure to rate my service so I can receive credit for helping you.
Marty

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