Pistons — Audi Q7
Category: Engine | Severity: high | Cost: ₹20,000–₹80,000
What is Pistons?
Pistons move up and down inside cylinders to transfer combustion force to the crankshaft.
How Pistons Works
Fuel combustion pushes the piston downward, rotating the crankshaft via connecting rods.
Why is Pistons Important?
They are essential for generating engine power.
Common Problems
- Wear
- Cracks
- Carbon buildup
Symptoms
- Blue smoke
- Loss of power
- Engine knocking
Causes of Failure
- Overheating
- Poor lubrication
- Detonation
Impact on Car Performance
Damaged pistons reduce power and increase oil consumption.
DIY Fix Guide — Step by Step
- Use good quality fuel
- Maintain proper oil levels
- Avoid engine overheating
- Regular servicing
- Inspect for smoke
Maintenance Tips
- Regular oil change
- Use correct fuel grade
Replacement Cost in India
Estimated range: ₹20,000 – ₹80,000
Where to Buy Online
When to Replace Pistons
Replace if cracked, worn, or causing excessive oil consumption.