Ignition Coil for BMW M4 CS — Price, Symptoms & Replacement Guide
Category: Engine | Failure Severity: High | Replacement Cost in India: ₹6,000–₹25,000
What is the Ignition Coil?
The ignition coil converts battery voltage into high voltage for spark plugs.
How the Ignition Coil Works
It amplifies electrical current to generate spark for combustion.
Why the Ignition Coil is Important
Ensures proper ignition and smooth engine running.
Common Problems with the Ignition Coil
- Failure
- Weak spark
Warning Symptoms of a Failing Ignition Coil
- Misfire
- Rough idle
- Poor acceleration
Common Causes of Ignition Coil Failure
- Heat
- Wear
- Electrical faults
Impact on Car Performance
Faulty coils reduce power and efficiency.
DIY Fix Guide — Step by Step
- Check for misfires
- Scan ECU
- Inspect coil packs
- Replace faulty coil
- Test ignition system
Maintenance Tips
- Replace with spark plugs
- Use OEM parts
Ignition Coil Replacement Cost in India
Expect to pay between ₹6,000 and ₹25,000 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 Ignition Coil Online
Search trusted Indian car-parts retailers like Boodmo, Amazon India and Flipkart for genuine and OEM-grade Ignition Coil listings.
When to Replace the Ignition Coil
When misfires occur.