Car AC Grinding Noise
A grinding or metal-on-metal sound from the compressor area when AC is on. Usually indicates a serious mechanical problem.
Possible Causes
Severely Worn Compressor Bearing
High likelihoodThe bearing is severely worn, causing dangerous metal-on-metal grinding.
Internal Compressor Damage
Medium likelihoodInternal compressor parts have broken and are causing grinding sounds.
How to Diagnose?
- 1 Turn off AC immediately to prevent further damage
- 2 Visually inspect compressor for damage signs
- 3 Hand-spin compressor pulley to check for grinding
- 4 Check for metal shavings in the refrigerant
Repair Cost
Depends on cause and vehicle type
| Service | Price | Notes |
|---|---|---|
| Estimated Repair Cost | 200–3500SAR | Depends on cause and vehicle type |
* Prices are estimates and may vary depending on vehicle type and condition. Contact us for an accurate quote.
Frequently Asked Questions
Grinding noise from AC, should I keep using it?
No, turn off the AC immediately. Continued use may completely destroy the compressor and contaminate the system with metal debris, doubling repair costs.
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