Smart Air Conditioning
9 models in database based on 26 documented fault patterns based on 122,100 real-world repairs.
Models Smart
Fortwo (451)
5 faults2003-2014
No cold air from ventsVibrations or humming after turning on A/CWeak cabin cooling
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Cabrio (450)
3 faults1998-2007
No blowing from ventsBlower works only on highest speedWeak cabin cooling
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City-Coupe (450)
3 faults1998-2007
No blowing from ventsBlower works only on highest speedWeak cabin cooling
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Forfour (453)
3 faults2014-2024
No blowing from ventsNo cold air from ventsMusty mold odor from vents
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Fortwo (450)
3 faults1998-2007
No blowing from ventsBlower works only on highest speedWeak cabin cooling
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Fortwo (453)
3 faults2014-2024
No blowing from ventsNo cold air from ventsMusty mold odor from vents
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Forfour EQ (453)
1 fault2017-2024
No cold air from ventsFrost or ice on pipes under the hood
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Fortwo EQ (453)
1 fault2017-2024
No cold air from ventsFrost or ice on pipes under the hood
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Roadster (452)
1 fault2003-2014
No cold air from ventsVibrations or humming after turning on A/C
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Common symptoms and faults Smart
- A/C does not react to control panel settings
- Air blows from incorrect vents
- Air conditioning does not turn on
- Blower works only on highest speed
- Frost or ice on pipes under the hood
- Irregular A/C operation
- Musty mold odor from vents
- No blowing from vents
- No cold air from vents
- Slow loss of refrigerant
- Vibrations or humming after turning on A/C
- Weak cabin cooling
- Weak or no heating in winter
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Parts & specifications
Need to check how many grams of refrigerant go into your vehicle? Check specifications for each model.
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