Crankshaft for BMW 7 Series — Price, Symptoms & Replacement Guide
Category: Engine | Failure Severity: High | Replacement Cost in India: ₹80,000–₹3,00,000
What is the Crankshaft?
The crankshaft converts the linear motion of pistons into rotational motion to drive the vehicle.
How the Crankshaft Works
It rotates as pistons move, transferring power to the transmission.
Why the Crankshaft is Important
Essential for engine power delivery.
Common Problems with the Crankshaft
- Wear
- Cracks
- Imbalance
Warning Symptoms of a Failing Crankshaft
- Engine vibration
- Knocking noise
Common Causes of Crankshaft Failure
- Poor lubrication
- Excessive load
Impact on Car Performance
Failure leads to total engine breakdown.
DIY Fix Guide — Step by Step
- Check oil levels
- Listen for abnormal noise
Maintenance Tips
- Regular oil changes
- Avoid engine overload
Crankshaft Replacement Cost in India
Expect to pay between ₹80,000 and ₹3,00,000 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
Replace when severely worn or damaged.