Catalytic Converter for BMW 7 Series — Price, Symptoms & Replacement Guide
Category: Engine | Failure Severity: High | Replacement Cost in India: ₹50,000–₹2,50,000
What is the Catalytic Converter?
The catalytic converter reduces harmful emissions by converting toxic gases into less harmful substances.
How the Catalytic Converter Works
Uses chemical catalysts to convert CO, NOx, and hydrocarbons into CO2, nitrogen, and water.
Why the Catalytic Converter is Important
Essential for emission compliance and environmental protection.
Common Problems with the Catalytic Converter
- Clogging
- Overheating
- Failure
Warning Symptoms of a Failing Catalytic Converter
- Power loss
- Check engine light
- Sulfur smell
Common Causes of Catalytic Converter Failure
- Unburnt fuel
- Engine misfire
- Contamination
Impact on Car Performance
A clogged converter can reduce engine power by 30–40%.
DIY Fix Guide — Step by Step
- Scan ECU for codes
- Inspect exhaust flow
Maintenance Tips
- Fix engine misfires early
- Use quality fuel
Catalytic Converter Replacement Cost in India
Expect to pay between ₹50,000 and ₹2,50,000 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 Catalytic Converter Online
Search trusted Indian car-parts retailers like Boodmo, Amazon India and Flipkart for genuine and OEM-grade Catalytic Converter listings.
When to Replace the Catalytic Converter
Replace if clogged or failed.