Thermostat — Renault Duster

Category: Engine | Severity: medium | Cost: ₹800–₹4,000

What is Thermostat?

Thermostat regulates coolant flow based on engine temperature.

How Thermostat Works

It opens and closes to maintain optimal temperature.

Why is Thermostat Important?

Ensures engine warms up and cools efficiently.

Common Problems

Stuck open
Stuck closed

Symptoms

Overheating
Poor fuel efficiency

Causes of Failure

Wear
Coolant contamination

Impact on Car Performance

Improper temperature affects engine efficiency.

DIY Fix Guide — Step by Step

Monitor temperature gauge

Maintenance Tips

Replace during coolant service

Replacement Cost in India

Estimated range: ₹800 – ₹4,000

Where to Buy Online

When to Replace Thermostat

Every 50,000–70,000 km or when faulty.