How do you replace glow plugs on peugeot 106 L reg?

To replace the glow plugs on a Peugeot 106 L reg, first ensure the engine is cool and disconnect the battery. Remove the engine cover if necessary, then locate the glow plugs, which are typically found on the cylinder head. Use a socket wrench to carefully unscrew each glow plug, taking care not to damage the threads. Install the new glow plugs by hand to avoid cross-threading, then tighten them to the manufacturer's specifications before reconnecting the battery and starting the engine to test.