Should I change my Peugeot 407 SW's cam belt at 106,000km?

My 2005 Peugeot 407 SW has done 106,000km. I've fitted a Chip Express "chip" which works very well, making the car smoother, more powerful and with better fuel consumption, down from 5.8 to 5.3 l/100km (about 53mpg). Should I change the cam belt and water pump now?
It's a good idea to change it soon. These belts don't normally fail prematurely, but I'd definitely do it before 120,000 kilometres.
Answered by Honest John on

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