Ignition Coil for BMW 7 Series — Price, Symptoms & Replacement Guide
Category: Engine | Failure Severity: Medium | Replacement Cost in India: ₹8,000–₹40,000
What is the Ignition Coil?
Ignition coils convert battery voltage into high voltage required for spark plugs.
How the Ignition Coil Works
They amplify electrical current and deliver it to spark plugs at precise timing.
Why the Ignition Coil is Important
Ensures strong spark for proper combustion.
Common Problems with the Ignition Coil
- Coil failure
- Weak spark
Warning Symptoms of a Failing Ignition Coil
- Misfire
- Rough idle
- Engine hesitation
Common Causes of Ignition Coil Failure
- Heat damage
- Electrical faults
Impact on Car Performance
Faulty coils cause misfires and poor engine performance.
DIY Fix Guide — Step by Step
- Scan ECU for misfire codes
- Check coil connections
- Swap coils for testing
Maintenance Tips
- Avoid overheating
- Replace faulty coils early
Ignition Coil Replacement Cost in India
Expect to pay between ₹8,000 and ₹40,000 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
Replace when misfire or weak spark is detected.