Motor Controller for BMW i5 — Price, Symptoms & Replacement Guide
Category: Engine | Failure Severity: High | Replacement Cost in India: ₹1,20,000–₹3,50,000
What is the Motor Controller?
Controls speed, torque, and operation of the electric motor.
How the Motor Controller Works
Sends signals to motor based on throttle input and driving conditions.
Why the Motor Controller is Important
Ensures smooth acceleration and performance.
Common Problems with the Motor Controller
- Signal failure
- Control issues
Warning Symptoms of a Failing Motor Controller
- Jerky acceleration
- Power loss
Common Causes of Motor Controller Failure
- Software glitch
- Electrical issue
Impact on Car Performance
Poor driving performance.
DIY Fix Guide — Step by Step
- Update firmware
- Run diagnostics
Maintenance Tips
- Keep system updated
Motor Controller Replacement Cost in India
Expect to pay between ₹1,20,000 and ₹3,50,000 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 Motor Controller Online
Search trusted Indian car-parts retailers like Boodmo, Amazon India and Flipkart for genuine and OEM-grade Motor Controller listings.
When to Replace the Motor Controller
When motor control becomes inconsistent.