Rear Parking Sensors

[lightfj]

I have an exclusive se estate and the parking sensors sometimes work ok but mostly they beep continuously! I suspect it is the usual dirty contact problem endemic to Citroen ;BUT How do you get the sensors out. Not a lot of room under the bottom valance and I am sure that the whole thing pops out of hole in the bumper. I just cant figure out how they are held in. Can anyone help please .

lightfj :

[PaulCartwright]

the sensors are held in with a clip around the edge you need to really remove the wires and take the bumper off (see earlier post) to do it properly if you try to do it with the bumper on can be difficult and poss break the clips holding them in