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    4. : Why doesn't the air conditioning of the Smart 451 work?

Why doesn't the air conditioning of the Smart 451 work?
Years 2007-2015

Answer

Normally the problem is due to the need to recharge the air conditioning system, an intervention that must necessarily be done in a workshop with specific equipment. Refrigerant gas leaks from the system may also be present, also in this case the defect can be detected in the workshop by means of an ultraviolet lamp and specific glasses through which it is possible to see the areas where the refrigerant gas leaks are illuminated. Also check whether it is the air conditioning control unit, which is part of the air conditioning temperature adjustment control. The replacement cost in this case can reach € 300, much less for a remanufactured or used component.
Posted on: 9 June 2021 by ScegliAuto

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