BMW Seria 3
Technical specifications of air conditioning and 8 documented fault patterns from real workshop repairs.
Most Common A/C Problems
A/C cooling is weak and gradually loses performance
High Priority90%
Frost or ice on pipes under the hood
Details
Air conditioning stopped cooling / no response to AC button
High Priority95%
Air conditioning does not turn on
Details
No airflow/cabin fan not working and irregular airflow strength
High Priority100%
Irregular A/C operationNo blowing from vents
Details
Air conditioning stopped cooling / no response to AC button
High Priority98%
Problem visible at standstill or in trafficProblem appears while drivingAir conditioning does not turn on
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)
High Priority100%
Air conditioning works intermittently
Details
Cabin blower does not work or works only on maximum speed
High Priority100%
Irregular A/C operationNo blowing from ventsBlower works only on highest speedFrost or ice on pipes under the hood
Details
Cabin blower does not work or works only on maximum speed
High Priority100%
Problem appears while drivingIrregular A/C operationNo blowing from ventsBlower works only on highest speed
Details
A/C Technical Specifications
| Variant | Refrigerant | Amount (g) | Oil | Oil (ml) |
|---|---|---|---|---|
| (G20) | R1234yf | 480-530g | PAG YF ISO 46 | 120 - 150ml |
| (F30) | R134a | 520-570g | PAG 46 | 120 - 150ml |
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Summary
- Documented faults
- 8
- Engine variants
- 2
- Average confidence
- 97%