Porsche 911 (991)
Technical specifications of air conditioning and 3 documented fault patterns from real workshop repairs.
Most Common A/C Problems
Water on the passenger floor and damp/musty smell
High Priority98%
Musty mold odor from vents
Details
Hissing from vents and slow loss of refrigerant
High Priority95%
No cold air from ventsWeak cabin cooling
Details
A/C cooling is weak and gradually loses performance
High Priority100%
No cold air from ventsWeak cabin cooling
Details
A/C Technical Specifications
| Variant | Refrigerant | Amount (g) | Oil | Oil (ml) |
|---|---|---|---|---|
| (997) | R134a | 850g | ND8 PAO 68 lub PAG ISO 46 | 195ml |
| (996) | R134a | 900g | PAG 46 PAO 68 lub PAG ISO 46 | 180 – 210ml |
| (993) | R134a | 840g | ND8 PAO 68 lub PAG ISO 46 | 80 – 120ml |
Trouble with 911 (991)?
Our AI will analyze symptoms and generate a personalized diagnostic report.
Summary
- Documented faults
- 3
- Engine variants
- 3
- Average confidence
- 98%