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What are the reasons for the non-rotation of the air conditioning fan in the Mercedes-Benz Viano?

1 Answers

KevinDella

07/29/25 11:21pm

Mercedes-Benz Viano air conditioning fan not rotating is caused by dryer damage or compressor failure. Coolant temperature not reaching requirements: First, check whether the coolant temperature has reached the required level. If the temperature cannot rise, the car engine needs to be inspected. Relay malfunction: If the relay is faulty, replacing the damaged relay can solve the problem. Thermostat switch failure: Some faults in the thermostat switch can also affect the operation of the car radiator fan. Replacing the damaged thermostat switch can resolve the issue. Impact of air conditioning temperature on fuel consumption: When it is too hot or too cold and the air conditioning must be turned on, do not set it to the coldest or hottest. A moderate setting is sufficient. Extremely low or high temperatures are very wasteful in terms of fuel consumption.

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