Mine was removed by a workshop and the light on the dash stopped coming on for self test.
I liked it so bought a new one (and a spare), refitted and the light comes on for test again.
I have had no false warnings or any warnings - probably as it gets changed every 10,000 km and hopefully buy good fuel. I have not found any water when I changed the filter.
But happy to have it there JUST IN CASE!!! :)

