When do you change the cambelt on a peugeot 407 2.0 hdi?

The cambelt on a Peugeot 407 2.0 HDi should typically be changed every 100,000 miles or every 10 years, whichever comes first. However, it's essential to refer to the owner's manual for specific recommendations, as maintenance schedules can vary based on driving conditions and vehicle usage. Regular inspections are also advised to check for any signs of wear or damage.