Yes same for me first had a hight sensor issue and a leak at centre distribution block front pipe was cross threaded sorted these then a pinprick in the tank then drivers airbag mulled over springs but going to persevere with air maybe new dunlop front air springs as can't find any leaks I suspect the bags become porous will test
plus 1 as also bought Dunlop front struts and compressor
indeed I also thought about coils but so pleased i stayed with air, so handy for me being able to lower it to aid getting in and out , along with of course the sublime ride quality in how it soaks up all the bumps , also very stable around corners
have u tried spraying them at different heights plse as found mine only leaked at off road height , think that was because the rubber bladder comes out of the metal shroud more in the off road setting
got one of these sprayers that had the long lance in order to reach the strut connections on top seeing there hard to reach with the short reach sprayers
failing that could fit a pair of pushfit isolation valves , one on each front strut pipe as it come out of the front valve block
So after fitting them u could raise it to off road height , then if it drops turn one off at a time and monitor
make a large loop so the isolating valves are easy to reach
of course if one strut leaks they should be replaced as a pair
when I replaced mine I couldn’t get over the difference on the ride quality , was like night and day
hope that’s useful to u , of course plse don’t hesitate to give me a shout if u get stuck