range rover p38 air spring wear

My front offside air spring has sprung a leak so another job to be done.
Just interested in the wear that's at the bottom of the spring - cannot see what it would rub against unless it's itself as it inflates and deflates - the rubber is so worn at the bottom it's back to the steel wires inside -
Any ideas please

It rubs agains the lower piston. they have a design life of 7/8 years 80K miles. Never replace one, the minimum is a pair on the same axle but if one is that far gone they all need replacing, your pump is probably also on it's way out through overwork feeding the leaks.

I'll start with the front pair but I know the rears are iffy although not leaking yet. My mot man mentioned that the rears looked very worn -
was thinking of getting the Arnott second generation air bag/spring
unless someone knows better rather than the third generation plus a packet of spring clips -

That only leaves 16 jobs to be done on the car -

Arnot Gen2 seems to be the way to go. The Gen 3's allow greater articulation so unless you're off-roading, and willing to upgrade shocks etc. they seem a waste of money.

Around a £100 a pair more for the Arnot Gen 3's - no off roading as such but a lot of farm type tracks - once the front and rear air springs are done would guess new shocks would not go amiss...