Motor Control Unit for BMW i4 — Price, Symptoms & Replacement Guide
Category: Engine | Failure Severity: High | Replacement Cost in India: ₹1,00,000–₹3,00,000
What is the Motor Control Unit?
Controls the operation of the electric motor including torque delivery and speed.
How the Motor Control Unit Works
Receives input from VCU and adjusts motor output via inverter.
Why the Motor Control Unit is Important
Directly impacts driving performance.
Common Problems with the Motor Control Unit
- Signal errors
- Overheating
Warning Symptoms of a Failing Motor Control Unit
- Jerky acceleration
- Power loss
Common Causes of Motor Control Unit Failure
- Electrical faults
- Heat stress
Impact on Car Performance
Reduced efficiency and unstable driving.
DIY Fix Guide — Step by Step
- Check error codes
- Inspect cooling
- Restart system
Maintenance Tips
- Ensure proper cooling
Motor Control Unit Replacement Cost in India
Expect to pay between ₹1,00,000 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 Motor Control Unit Online
Search trusted Indian car-parts retailers like Boodmo, Amazon India and Flipkart for genuine and OEM-grade Motor Control Unit listings.
When to Replace the Motor Control Unit
Replace when motor control becomes inconsistent.