Onboard Charger for BMW i5 — Price, Symptoms & Replacement Guide
Category: Engine | Failure Severity: High | Replacement Cost in India: ₹1,00,000–₹3,00,000
What is the Onboard Charger?
The onboard charger converts AC power from charging stations into DC to charge the battery.
How the Onboard Charger Works
Uses rectifiers and converters to transform AC input into battery-compatible DC.
Why the Onboard Charger is Important
Essential for charging the vehicle using standard AC chargers.
Common Problems with the Onboard Charger
- Slow charging
- Charging failure
- Overheating
Warning Symptoms of a Failing Onboard Charger
- Charging stops midway
- Error messages
- Long charging time
Common Causes of Onboard Charger Failure
- Power surge
- Thermal issues
- Component failure
Impact on Car Performance
Charging efficiency drops or stops completely.
DIY Fix Guide — Step by Step
- Check charging cable
- Try different charger
- Scan error codes
Maintenance Tips
- Avoid unstable power sources
Onboard Charger 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 Onboard Charger Online
Search trusted Indian car-parts retailers like Boodmo, Amazon India and Flipkart for genuine and OEM-grade Onboard Charger listings.
When to Replace the Onboard Charger
When charging fails consistently.