Expansion Valve for Nissan Gravite — Price, Symptoms & Replacement Guide
Category: AC | Failure Severity: High | Replacement Cost in India: ₹3,000–₹9,000
What is the Expansion Valve?
The expansion valve regulates refrigerant flow into the evaporator.
How the Expansion Valve Works
It reduces refrigerant pressure and controls flow based on cooling demand.
Why the Expansion Valve is Important
Ensures proper cooling and prevents evaporator freezing.
Common Problems with the Expansion Valve
- Blockage
- Sticking
- Leakage
Warning Symptoms of a Failing Expansion Valve
- Uneven cooling
- Evaporator freezing
- Poor performance
Common Causes of Expansion Valve Failure
- Contamination
- Moisture
- Wear
Impact on Car Performance
Leads to inefficient cooling and system imbalance.
DIY Fix Guide — Step by Step
- Check refrigerant pressure
- Inspect cooling performance
- Avoid contaminated refrigerant
- Replace if faulty
Maintenance Tips
- Use clean refrigerant
- Replace filter regularly
Expansion Valve Replacement Cost in India
Expect to pay between ₹3,000 and ₹9,000 for genuine parts plus labour at an authorised Nissan workshop. Local garages and aftermarket parts can be 20–40% cheaper but may compromise warranty.
Where to Buy Expansion Valve Online
Search trusted Indian car-parts retailers like Boodmo, Amazon India and Flipkart for genuine and OEM-grade Expansion Valve listings.
When to Replace the Expansion Valve
Replace when cooling becomes inconsistent.