✅ Fixed
Replaced all spark plugs with NGK iridium plugs. One coil pack was also weak — replaced. Smooth idle restored immediately.
Land Rover Discovery 2015 P0300 random misfire rough idle
Safe to Drive?
⚠️ Drive with Caution
Urgency Level
🟠 Fix Soon
Land Rover Discovery 2015 P0300 random misfire detected. Engine shaking at idle. Check engine light on. 54671 km. This fault code is stored when the engine control unit detects a specific fault condition. Common causes include sensor failures, wiring faults, and component wear. Always read additional fault codes before replacing parts — multiple codes together provide a clearer diagnosis. Clear the code after repair and test drive to confirm the fault does not return.
🔍 Symptoms
📍 Land Rover Discovery
⚠️ P0300 fault code
⚙️ Possible Causes
Fault code P0300 detected
Land Rover Discovery
Possible: Replaced all spark plugs with NGK iridium plugs. One coil pack was also weak — replaced. Smooth idle restored immediately.
Repair / Solution
Based on 79 driver confirmations
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