2026-10-08 · 5 min read
Nissan Navara Glow Plugs Malaysia — NP300 YD25 Diesel
Navara NP300 is a diesel engine — it uses glow plugs, not spark plugs. Glow plugs preheat the combustion chamber for cold starts. Faulty glow plugs cause hard starting, white smoke on startup, and rough running in cold conditions. Inspect at 80,000 km, replace as needed. A failed glow plug relay will also prevent starting.
Navara YD25: Glow Plugs (Diesel Engine)
- The YD25DDTi is a diesel engine — it uses glow plugs for cold-start assist, not spark plugs
- Glow plug service: inspect at 80,000 km, replace on failure or slow cold-start symptoms
- Malaysian temperature rarely stresses glow plugs — but Sabah/Sarawak highland routes see more use
- Wait for glow plug light to extinguish (2–5 sec) before cranking — never force-start