How easy is it to replace glow plugs on a peugeot 407?

Replacing glow plugs on a Peugeot 407 can be moderately easy for those with basic mechanical skills and tools. The process typically involves removing engine covers and accessing the glow plugs, which are located near the cylinder head. However, care must be taken to avoid damaging surrounding components, and if the glow plugs are seized, additional effort may be required. Overall, while it's manageable for a DIYer, it can be challenging for those without experience.