Toyota Corolla
Technical specifications of air conditioning and 13 documented fault patterns from real workshop repairs.
Most Common A/C Problems
A/C works intermittently or cuts out during driving
85%
Air conditioning works intermittentlyDark sludge or metal shavings in system
Details
A/C cooling is weak and gradually loses performance
High Priority100%
Weak cabin cooling
Details
Air conditioning stopped cooling / no response to AC button
High Priority100%
Air conditioning does not turn onProblem after collision or accident
Details
Slow loss of refrigerant or A/C system leakage
High Priority96%
Air conditioning works intermittentlyFrost or ice on pipes under the hoodProblem after collision or accident
Details
A/C works intermittently or cuts out during driving
80%
Air conditioning works intermittentlyA/C does not react to control panel settings
Details
Hissing from vents and slow loss of refrigerant
High Priority97%
Slow loss of refrigerant
Details
Air conditioning stopped cooling / no response to AC button
High Priority95%
A/C does not react to control panel settings
Details
Intermittent operation (air conditioning turns off and comes back on)
80%
Problem visible at standstill or in trafficAir conditioning works intermittentlyFrost or ice on pipes under the hoodSlow loss of refrigerant
Details
Air conditioning stopped cooling / no response to AC button
High Priority99%
No cold air from ventsAir conditioning works intermittentlyA/C does not react to control panel settings
Details
Air conditioning stopped cooling / no response to AC button
High Priority98%
No cold air from vents
Details
Blower vents emit warm air when A/C is turned on
80%
Problem appears while drivingFrost or ice on pipes under the hoodProblem after collision or accidentSlow loss of refrigerant
Details
Air conditioning stopped cooling / no response to AC button
High Priority98%
No cold air from ventsWarning light on dashboard
Details
A/C works intermittently or cuts out during driving
High Priority98%
No cold air from ventsAir conditioning works intermittentlyA/C does not react to control panel settings
Details
A/C Technical Specifications
| Variant | Refrigerant | Amount (g) | Oil | Oil (ml) |
|---|---|---|---|---|
| (E21) | R1234yf | 475g | PAG YF PAO 68 AA1 lub PAG ISO 46 YF | 80ml |
| (E21) Hybrid | R1234yf | 475g | ND11 POE 120 GT | 86ml |
| XII - (E210) | R1234yf | 400-450g | PAG YF ISO 46 | 100 - 130ml |
| (E18) 1,3 i + 1,4 D | R1234yf | 420g | ND12 PAO 68 AA1 lub PAG ISO 46 YF | 90ml |
| (E18) 1,6 i | R1234yf | 420g | ND12 PAO 68 AA1 lub PAG ISO 46 YF b.d. | b.d.ml |
| (E18) 1,3 i + 1,4 D | R134a | 450g | ND8 PAO 68 AA1 lub PAG ISO 46 | 90ml |
| (E18) 1,6 i | R134a | 450g | ND8 PAO 68 AA1 lub PAG ISO 46 b.d. | b.d.ml |
| Standard | R134a | 440g | ND8 PAO 68 lub PAG ISO 46 b.d. | b.d.ml |
| (E12U) | R134a | 425 – 475g | ND8 PAO 68 lub PAG ISO 46 b.d. | b.d.ml |
| 1,9 D – produkowana w Japonii | R134a | 600 –700g | ND9 PAO 68 lub PAG ISO 100 b.d. | b.d.ml |
| 1,9 D – produkowana w Wielkiej Brytanii | R134a | 450 – 490g | ND9 PAO 68 lub PAG ISO 100 b.d. | b.d.ml |
| Standard | R134a | 600 –700g | ND9 PAO 68 lub PAG ISO 100 b.d. | b.d.ml |
| Standard | R134a | 650 –750g | ND9 PAO 68 lub PAG ISO 100 b.d. | b.d.ml |
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Summary
- Documented faults
- 13
- Engine variants
- 13
- Average confidence
- 93%