Yes you will need two long thin nails push them into the holes on the bottom of the unit and pull the unit forward from the bottom to remove unit disconnect the 2 wiring connectors the current mileage will be restored when fitting new unit Warning if you are fitting a used unit if the mileage is higher than yours it will use that mileage and it wont go back down for obvious reasons
Peugeot master technician, September 2008