Defender TD5 Glow Plug System Testing - Failed Glow Plugs

🔧 Troubleshooting Glow Plugs on a Land Rover Defender TD5 | Full Diagnosis Guide Having trouble starting your TD5? In this video, we’ll walk you through how to diagnose and test the glow plugs on your Land Rover Defender TD5 — step by step. From checking voltages and resistance to identifying wiring faults and ECU issues, this guide covers everything you need to know to get your TD5 starting smoothly again. ✅ What You’ll Learn: How to test TD5 glow plugs with a multimeter Common symptoms of bad glow plugs or relay issues How to access and inspect glow plug wiring and connectors Tips for replacing faulty plugs and preventing future issues 🧰 Tools Used: Multimeter Replacement glow plugs (OEM spec): Defender TD5 glow plugs: ERR6066 https://www.lrdirect.com/err6066-heat... 💡 Pro Tip: Even if your TD5 starts fine in summer, failing glow plugs can cause rough cold starts and white smoke in winter — so early testing can save you trouble later! 📍 Vehicle: Land Rover Defender TD5 (1999–2006) 📸 Filmed in Colorado — part of our Defender build and maintenance series. Defender TD5 glow plugs: ERR6066 https://www.lrdirect.com/err6066-heat... #landrover #landroverdefender #defender #defender110 #defender130 #td5 #automobile #diesel #glowplug #turbodiesel #GlowPlugTest #DieselDiagnostics #LandRoverDIY #OffRoadMechanic