Heat Exchanger for BMW i5 — Price, Symptoms & Replacement Guide
Category: Engine | Failure Severity: Medium | Replacement Cost in India: ₹20,000–₹70,000
What is the Heat Exchanger?
Transfers heat between systems to maintain optimal operating temperature.
How the Heat Exchanger Works
Uses coolant loops to dissipate heat from battery and motor.
Why the Heat Exchanger is Important
Maintains efficiency and protects components.
Common Problems with the Heat Exchanger
- Clogging
- Leakage
Warning Symptoms of a Failing Heat Exchanger
- Overheating
- Coolant loss
Common Causes of Heat Exchanger Failure
- Debris buildup
- Corrosion
Impact on Car Performance
Overheating reduces battery life.
DIY Fix Guide — Step by Step
- Check coolant
- Inspect leaks
Maintenance Tips
- Regular coolant replacement
Heat Exchanger Replacement Cost in India
Expect to pay between ₹20,000 and ₹70,000 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 Heat Exchanger Online
Search trusted Indian car-parts retailers like Boodmo, Amazon India and Flipkart for genuine and OEM-grade Heat Exchanger listings.
When to Replace the Heat Exchanger
On leakage or inefficiency.