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P0302 Error Code

Bmw vehicle

🚨 Critical — Act NowBmwvehicle

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Stop using your appliance

This error code indicates a serious issue. Do not continue running the appliance until the problem is resolved to prevent damage or safety hazards.

📋 What Does P0302 Mean?

Cylinder 2 Misfire Detected — cylinder 2 is not firing consistently.

💰Estimated repair cost: $50–$500

🔍 Common Causes

1Failed ignition coil on cylinder 2
2Worn spark plug on cylinder 2
3Clogged or leaking fuel injector on cylinder 2
4Low compression in cylinder 2 (rings, valve)

📞 When to Call a Pro

Compression test and injector diagnosis if coil and plug did not resolve.

Estimated Cost

$50–$500

🔧 DIY Fix Steps

1Swap the coil pack from cylinder 2 to a known good cylinder — if misfire code moves with the coil, coil is bad
2Replace spark plug on cylinder 2
3Inspect for oil in plug well (valve cover gasket leak)
4Add injector cleaner to fuel tank

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How to Reset After Fixing

Replace coil/plug, clear code, test drive.

Frequently Asked Questions

What does P0302 mean on a Bmw vehicle?

Cylinder 2 Misfire Detected — cylinder 2 is not firing consistently.

Can I fix P0302 myself?

Yes, in many cases. Start with: swap the coil pack from cylinder 2 to a known good cylinder — if misfire code moves with the coil, coil is bad If that does not resolve it, compression test and injector diagnosis if coil and plug did not resolve.