To replace the rear fog light bulb on a Peugeot 407 SW, first, open the rear hatch and locate the tail light assembly. Remove the screws or clips securing the assembly and gently pull it out. Disconnect the electrical connector, then twist the bulb holder to release it, and replace the old bulb with a new one. Reassemble the tail light, reconnect the electrical connector, and test the fog light to ensure it’s working properly.
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