Common Rail — Renault Duster

Category: Fuel System | Severity: high | Cost: ₹8,000–₹25,000

What is Common Rail?

Stores and distributes high-pressure fuel in diesel engines.

How Common Rail Works

Receives fuel from high-pressure pump and feeds injectors.

Why is Common Rail Important?

Ensures efficient combustion in diesel engines.

Common Problems

Pressure leak
Sensor issues

Symptoms

Engine knocking
Power loss

Causes of Failure

Wear
Contamination

Impact on Car Performance

Reduces fuel efficiency and power.

DIY Fix Guide — Step by Step

Check pressure
Inspect leaks

Maintenance Tips

Use clean diesel

Replacement Cost in India

Estimated range: ₹8,000 – ₹25,000

Where to Buy Online

When to Replace Common Rail

Replace if pressure inconsistency occurs.