Crankshaft for BMW Z4 — Price, Symptoms & Replacement Guide
Category: Engine | Failure Severity: High | Replacement Cost in India: ₹50,000–₹1,50,000
What is the Crankshaft?
Crankshaft converts reciprocating motion of pistons into rotational motion.
How the Crankshaft Works
Connected to pistons via rods, it rotates to drive the drivetrain.
Why the Crankshaft is Important
Essential for engine movement and power delivery.
Common Problems with the Crankshaft
- Bearing wear
- Imbalance
- Cracks
Warning Symptoms of a Failing Crankshaft
- Engine vibration
- Knocking
- Oil pressure drop
Common Causes of Crankshaft Failure
- Poor lubrication
- Overload
Impact on Car Performance
Failure leads to engine breakdown.
DIY Fix Guide — Step by Step
- Check oil pressure
- Inspect unusual noise
Maintenance Tips
- Regular oil changes
- Avoid over-revving
Crankshaft Replacement Cost in India
Expect to pay between ₹50,000 and ₹1,50,000 for genuine parts plus labour at an authorised BMW workshop. Local garages and aftermarket parts can be 20–40% cheaper but may compromise warranty.
Where to Buy Crankshaft Online
Search trusted Indian car-parts retailers like Boodmo, Amazon India and Flipkart for genuine and OEM-grade Crankshaft listings.
When to Replace the Crankshaft
If damaged or worn beyond limits.