Crankshaft Position Sensor for BMW 3 Series Long Wheelbase — Price, Symptoms & Replacement Guide
Category: Engine | Failure Severity: High | Replacement Cost in India: ₹5,000–₹20,000
What is the Crankshaft Position Sensor?
This sensor monitors crankshaft position and speed.
How the Crankshaft Position Sensor Works
It sends rotational data to ECU for ignition timing.
Why the Crankshaft Position Sensor is Important
Critical for engine timing and starting.
Common Problems with the Crankshaft Position Sensor
- Sensor failure
- Signal loss
Warning Symptoms of a Failing Crankshaft Position Sensor
- Engine stall
- No start
- Misfire
Common Causes of Crankshaft Position Sensor Failure
- Electrical faults
- Heat damage
Impact on Car Performance
Engine may not start.
DIY Fix Guide — Step by Step
- Scan ECU codes
- Inspect wiring
- Replace sensor
Maintenance Tips
- Avoid overheating
- Regular diagnostics
Crankshaft Position Sensor Replacement Cost in India
Expect to pay between ₹5,000 and ₹20,000 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 Position Sensor Online
Search trusted Indian car-parts retailers like Boodmo, Amazon India and Flipkart for genuine and OEM-grade Crankshaft Position Sensor listings.
When to Replace the Crankshaft Position Sensor
Replace if engine fails to start or stalls.