Coolant Expansion Tank for Renault Duster — Price, Symptoms & Replacement Guide
Category: Cooling | Failure Severity: Medium | Replacement Cost in India: ₹1,500–₹4,000
What is the Coolant Expansion Tank?
Stores excess coolant and maintains pressure balance.
How the Coolant Expansion Tank Works
Expands coolant volume during heating and returns it when cooled.
Why the Coolant Expansion Tank is Important
Prevents coolant overflow and air entry.
Common Problems with the Coolant Expansion Tank
- Cracks
- Cap failure
- Leakage
Warning Symptoms of a Failing Coolant Expansion Tank
- Low coolant warning
- Visible leak
Common Causes of Coolant Expansion Tank Failure
- Heat stress
- Plastic aging
Impact on Car Performance
Coolant loss and overheating risk.
DIY Fix Guide — Step by Step
- Check level
- Inspect cracks
- Replace tank
Maintenance Tips
- Maintain coolant level
- Inspect cap
Coolant Expansion Tank Replacement Cost in India
Expect to pay between ₹1,500 and ₹4,000 for genuine parts plus labour at an authorised Renault workshop. Local garages and aftermarket parts can be 20–40% cheaper but may compromise warranty.
Where to Buy Coolant Expansion Tank Online
Search trusted Indian car-parts retailers like Boodmo, Amazon India and Flipkart for genuine and OEM-grade Coolant Expansion Tank listings.
When to Replace the Coolant Expansion Tank
Replace if cracked or leaking.