I Tested my Glow Plugs They Melted! How to Test Glow Plugs with Multimeter

How to test the glow plugs on a Land Rover Defender 200tdi. This videos includes how to fault find, test and replace the glow plugs on a 200ti engine. This also applies to the 300tdi and in both Land rover defender and Land rover discovery too. The video shows you how to test the power to your glow plugs to ensure the relay is functioning, and how to test each glow plug resistance comparing the new ones and the old ones. This video was made one a land rover defender 200tdi engine, where I tested and found my glow plugs we not functioning.