Thanks. Pug owner, Scotland

In my experience nothing would be changed other than adding special Eolys fluid to your car.
The fluid is expensive and there are 2 types dependant on your car age.

They will also have to reset your car computer to reflect the top up of your Eolys fluid tank.

This fluid does not have a level gauge, it uses a secser that is linked to you removing your fuel filler cap and this action adds a set amount of fluid to your tank each time.

So putting £10 in every day will deplete your fluid faster then filling up the tank once a fortnight.

there may be a seal that would have to be replaced, other than that this is about it to the best of my knowledge.

Once the fluid has been added Peugeot may do a manual re-gen cycle that burns out the dirt inside the Particulate filter.

This is the idea anyway, this is done again by connecting the car to a computer, you can probably achieve the same result by getting your car on the motorway and doing a constant 70 ish for about 20-30 Min's.

Hope this helps

Regards
Richard.