I've managed to get a spanner on to it, but they don't make it easy do they? Ìve got a filter kit that I didn't get around to fiting on the previous Disco, so I think I'll fit that while I'm there and then fill the box up. The litre (if that) of ATF that came out was pretty brown. Might do a few miles on that and then change it again.
@Alpinejim , it came undone at the gearbox end, rather than the cooler. I thought the cooler end was a push on type connection?
I would fit/fill then run, then fit the new filter with more new fluid. You still don't know if the box has suffered, save the filter for the next 1
You may find you need quite a bit more fluid than normal as its been pumped out, and the cooler may have drained a bit.
J