Just a small addition to a post I put on a day or two ago. If you have a fluid leak and are considering a compression fitting repair and are concerned about the condition of the pipe surface where the compression fitting may be attached. The insert pipe can be extended to any length where the old ace pipe has a good surface, could be 200mm. 300mm or 1mtr ............. just look for a good surface does not really matter where!

sierrafery said:

In that case the system becomes "floppy" with clear technical reasons, i experienced it myself with loaded vehicle when i lost the fluid due to a massive pipe leak and at higher speed it can be tricky(to not say dangerous) while cornering hard, it wasnt too good for my blood pressure... maybe if you drive it like a grandma mostly on straight(ish) roads it might not be very noticeable... i simply can't understand those who say there's not much difference, IMO it's a kind of cognitive dissonance/self justification not reality. If you want to get rid of the ACE do it properly by fitting classic ARBs to be on the safe side you want to drive fast in the future

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I can only talk on this subject based on my experience. I have driven my D2 with ACE deleted and on the original Rams for at least 10 years. I have noticed NO difference in the cars drivability at all. This process was recommended to me by an authorised LR mechanic who worked for LR and now owns and runs an independent LR garage. I am in no way doubting your own experience, but the above is mine.

Based upon everything I have read here, and believe you me I do thank you all for your inputs, this is where my ACE system is now

Land Rover never designed this system to be maintained and even getting it out was difficult. It fought all the way. All fixings had to be cut off and in true LR tradition I spent two hours at the local Minor Injuries department putting my finger back together after a cutting disc shattered.
I have sourced alternative parts and will rebuild the system one handed using inert ARBs as soon as they have been shipped in.
More later.

After two weeks the LR is back on the road, the final bits having arrived this morning. To be honest I was not expecting to have to do this job, even though the ACE light had been illuminating on several occasions over the last year. This was the first time there was any loss of fluid whatsoever, so I was surprised how major it was. The inability to remove the rear pipes from the actuator block and general price of replacement pipes was the driver to rip the system out and replace it with inert ARBs. I doubt whether I will be able to notice any difference even though the ACE system is actually very good.
If anyone needs any ACE parts I have quite a few including actuator bellows, pump, dual reservoir and actuator block.
I am just waiting now for the air suspension pump to fail before I replace the rear system with springs.