Smart Fortwo (451)
Technical specifications of air conditioning and 5 documented fault patterns from real workshop repairs.
Most Common A/C Problems
Slow loss of refrigerant or A/C system leakage
High Priority96%
No cold air from ventsVibrations or humming after turning on A/C
Details
A/C cooling is weak and gradually loses performance
High Priority98%
No cold air from ventsWeak cabin cooling
Details
Blower vents emit warm air when A/C is turned on
High Priority97%
No cold air from vents
Details
No heating and burning smell
High Priority97%
Weak or no heating in winter
Details
Air conditioning stopped cooling / no response to AC button
High Priority94%
No blowing from ventsA/C does not react to control panel settingsVibrations or humming after turning on A/C
Details
A/C Technical Specifications
| Variant | Refrigerant | Amount (g) | Oil | Oil (ml) |
|---|---|---|---|---|
| Bez pompy ciepła | R1234yf | 500g | - | - ml |
| Z pompą ciepła | R1234yf | 950g | - | - ml |
| Bez pompy ciepła | R134a | 500g | - | - ml |
| Z pompą ciepła | R134a | 950g | - | - ml |
| (453) Electric Drive | R1234yf | 430g | PAO 68 AA1 | 100ml |
| III - (C453) | R1234yf | 280-330g | PAG YF ISO 46 | 70 - 100ml |
| (453) | R134a | 475g | PAG PAO 68 AA1 lub PAG ISO 100 | 100ml |
| (451.391/491) Electric Drive | R134a | 550g | PAO 68 AA1 b.d. | b.d.ml |
| (451) | R134a | 420g | PAG PAO 68 lub PAG ISO 46 | 180ml |
| Fortwo (451) - | R134a | 420g | - | - ml |
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Summary
- Documented faults
- 5
- Engine variants
- 10
- Average confidence
- 96%