Spark Plugs — Audi Q5
Category: Engine | Severity: medium | Cost: ₹2,000–₹8,000
What is Spark Plugs?
Spark plugs ignite the air-fuel mixture in petrol engines.
How Spark Plugs Works
They generate an electric spark at precise timing to initiate combustion.
Why is Spark Plugs Important?
Essential for engine starting and smooth combustion in petrol engines.
Common Problems
- Fouling
- Wear
- Carbon deposits
Symptoms
- Misfire
- Hard start
- Poor mileage
Causes of Failure
- Old age
- Poor fuel quality
- Carbon buildup
Impact on Car Performance
Leads to incomplete combustion and reduced efficiency.
DIY Fix Guide — Step by Step
- Inspect spark plug condition
- Clean minor carbon deposits
- Replace if worn
Maintenance Tips
- Replace every 20,000–40,000 km
- Use recommended type
Replacement Cost in India
Estimated range: ₹2,000 – ₹8,000
Where to Buy Online
When to Replace Spark Plugs
Every 20,000–40,000 km or if misfiring.