BMW 320d Glow Plug Failure — Hard Cold Start
BMW
3 Series
2005
M47/N47 2.0d
Safe to Drive?
🚫 Do NOT Drive
Urgency Level
🟡 Monitor Closely
Failed glow plugs on BMW 320d cause difficult cold starting — extended cranking before the engine fires, white smoke and rough running until warm. P0670-P0677 codes stored for specific plug failure. Replace all four plugs simultaneously as they age at similar rates. Glow plug set: £80-160; fitting adds £80-150.
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