Regenerative Braking Controller — Audi Q8 Sportback e-tron
Category: Engine | Severity: medium | Cost: ₹40,000–₹1,20,000
What is Regenerative Braking Controller?
Controls energy recovery during braking.
How Regenerative Braking Controller Works
Converts kinetic energy into electrical energy and stores it in the battery.
Why is Regenerative Braking Controller Important?
Improves efficiency and extends driving range.
Common Problems
- Low regen efficiency
- Control failure
Symptoms
- Reduced range
- Weak braking regeneration
Causes of Failure
- Software issues
- Sensor faults
Impact on Car Performance
Loss of regen reduces efficiency by up to 15%.
DIY Fix Guide — Step by Step
- Check settings
- Reset system
- Scan errors
- Service inspection
Maintenance Tips
- Drive smoothly
- Avoid aggressive braking
Replacement Cost in India
Estimated range: ₹40,000 – ₹1,20,000
Where to Buy Online
When to Replace Regenerative Braking Controller
When regeneration stops working.