B2518
Compressor Overtemp Fault
B2518 is an OBD-II diagnostic trouble code meaning: Compressor Overtemp Fault. Common causes: low refrigerant level, cooling fan malfunction. Estimated repair cost: $56–167.
Symptoms
- Reduced air conditioner efficiency
- Noise when the compressor is running
- Turning off the air conditioner when overheating
Causes
- Low refrigerant level
- Cooling fan malfunction
- Problems with the compressor electrical circuit
- Air conditioner radiator dirty
How to Fix
- Check refrigerant level
- Diagnose the operation of the cooling fan
- Check the compressor electrical circuit
- Clean the air conditioner radiator
Related codes
FAQ
What does the B2518 code mean?
B2518 is an OBD-II diagnostic trouble code that indicates: Compressor Overtemp Fault
What causes a B2518 error code?
The most common causes of B2518 include: Low refrigerant level; Cooling fan malfunction; Problems with the compressor electrical circuit; Air conditioner radiator dirty.
How do I fix a B2518 diagnostic trouble code?
To fix B2518: Check refrigerant level. Diagnose the operation of the cooling fan. Check the compressor electrical circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B2518?
Limited driving only, diagnose soon
How much does it cost to fix B2518?
The estimated repair cost for B2518 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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