Yes, I purchased my '03 disco 3 months ago complete with full service and MOT from a dealer, after I did the deal they MOTd it and it needed a new steering box. Hard luck on them but not for me, they couldn't MOT without it.
It's a bugger when that happens! (for us!!)
Ah take heart... I'm now about to replace my rear suspension airbags after developing an intermittent O/S deflation! :doh:
Yep, gathered that! Just replace them is the best way. I can forgive my disco for this indiscretion so early in our relationship, she has just towed two big horses in an Ifor trailer to Newmarket and back like a dream...Air suspension makes all the difference with live, moving cargo!