Valves — Audi Q3
Category: Engine | Severity: high | Cost: ₹12,000–₹40,000
What is Valves?
Engine valves regulate the flow of air-fuel mixture into the combustion chamber and exhaust gases out.
How Valves Works
They open and close at precise intervals controlled by the camshaft.
Why is Valves Important?
Critical for proper combustion and engine efficiency.
Common Problems
- Valve burning
- Carbon buildup
- Bent valves
Symptoms
- Misfire
- Power loss
- Rough idle
Causes of Failure
- Overheating
- Poor fuel quality
- Timing issues
Impact on Car Performance
Leads to inefficient combustion and reduced engine power.
DIY Fix Guide — Step by Step
- Use high-quality fuel
- Check for misfire codes
- Perform compression test
- Clean intake system
Maintenance Tips
- Regular servicing
- Use fuel additives if needed
- Avoid overheating
Replacement Cost in India
Estimated range: ₹12,000 – ₹40,000
Where to Buy Online
When to Replace Valves
Replace when valves are bent, burnt, or leaking.