Smart Fortwo (450)

Technical specifications of air conditioning and 3 documented fault patterns from real workshop repairs.

Most Common A/C Problems

Cabin blower does not work or works only on maximum speed

High Priority99%
No blowing from ventsBlower works only on highest speed
Details

Slow loss of refrigerant or A/C system leakage

High Priority96%
Weak cabin coolingVibrations or humming after turning on A/C
Details

Air conditioning stopped cooling / no response to AC button

High Priority97%
No blowing from ventsAir conditioning does not turn onSlow loss of refrigerant
Details

A/C Technical Specifications

VariantRefrigerantAmount (g)OilOil (ml)
(453) Electric DriveR1234yf430gPAO 68 AA1100ml
III - (C453)R1234yf280-330gPAG YF ISO 4670 - 100ml
(453)R134a475gPAG PAO 68 AA1 lub PAG ISO 100100ml
(451.391/491) Electric DriveR134a550gPAO 68 AA1 b.d.b.d.ml
(451)R134a420gPAG PAO 68 lub PAG ISO 46180ml
Fortwo (451) -R134a420g- - ml
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Summary

Documented faults
3
Engine variants
6
Average confidence
97%