Where are the plugs on Peugeot 407?

On the Peugeot 407, the spark plugs are located on the engine cylinder head, typically covered by ignition coils or a cover. For accessing them, you may need to remove the ignition coil packs, which are mounted directly above the spark plugs. The exact location can vary slightly depending on the engine type, so consulting the vehicle's manual is advisable for precise instructions.