Why is the Mercedes-Benz air conditioning not cooling?

2 Answers
DiValentina
07/28/25 5:27pm
Due to poor heat dissipation from the condenser. Below is relevant information about Mercedes-Benz: 1. Introduction: Mercedes-Benz is a world-renowned luxury automobile brand. 2. Brand History: The brand is admired for its perfect technical level, rigorous quality standards, innovative capabilities, and a series of classic coupe models. Internationally, the brand is commonly referred to as Mercedes, while in mainland China it is called "Benz", in Taiwan it is translated as "Benz", and in Hong Kong as "Ping Zhi". For over 100 years, the Mercedes-Benz brand has been a pioneer in automotive technological innovation.
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LaMaggie
08/11/25 11:42pm
My old Mercedes also had an issue with the air conditioning not cooling last summer, and it turned out to be a refrigerant leak in the condenser. Actually, there are several common reasons why a Mercedes' AC might not cool: the most common is refrigerant leakage, which can happen due to aging pipes or the condenser being punctured by stones. Compressor failure is another major cause, such as a burnt electromagnetic clutch or a broken belt. If the AC blows cold air initially but quickly turns to hot air, it might be due to a blocked expansion valve or a failed dryer. Electronic systems are also prone to issues, especially if the temperature sensor is faulty, causing the control module to misjudge. Also, don’t forget to check the cabin air filter—if it’s too dirty, reduced airflow can make it seem like the AC isn’t cooling. If the cooling fan isn’t working, the cooling efficiency drops by half. It’s best to take it to a professional shop for a pressure test as soon as possible; trying to fix it yourself might make the problem worse.
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