Crankshaft — Audi A4
Category: Engine | Severity: critical | Cost: ₹50,000–₹1,50,000
What is Crankshaft?
Crankshaft converts linear piston motion into rotational movement.
How Crankshaft Works
Connected to pistons via connecting rods, it rotates as pistons move up and down.
Why is Crankshaft Important?
Critical for transmitting engine power to drivetrain.
Common Problems
- Bearing wear
- Cracks
- Imbalance
Symptoms
- Engine vibration
- Knocking
- Low oil pressure
Causes of Failure
- Oil starvation
- Excess load
- Poor maintenance
Impact on Car Performance
Failure leads to complete engine breakdown.
DIY Fix Guide — Step by Step
- Check engine oil pressure
- Listen for unusual noises
- Inspect for vibration
- Get professional inspection
Maintenance Tips
- Regular oil changes
- Avoid engine overloading
Replacement Cost in India
Estimated range: ₹50,000 – ₹1,50,000
Where to Buy Online
When to Replace Crankshaft
Replace if cracks or severe wear detected.