Valves — Audi A4

Category: Engine | Severity: high | Cost: ₹10,000–₹40,000

What is Valves?

Valves regulate intake of air-fuel mixture and exhaust gases.

How Valves Works

They open and close in sync with camshaft rotation.

Why is Valves Important?

Essential for proper combustion and engine breathing.

Common Problems

Carbon buildup
Burnt valves

Symptoms

Power loss
Misfire
Rough idle

Causes of Failure

Poor fuel quality
Overheating

Impact on Car Performance

Damaged valves reduce engine efficiency.

DIY Fix Guide — Step by Step

Use fuel additives
Check engine performance
Perform engine cleaning

Maintenance Tips

Use good fuel
Regular servicing

Replacement Cost in India

Estimated range: ₹10,000 – ₹40,000

Where to Buy Online

When to Replace Valves

Replace if burnt or leaking.