Disco 2 Please educate me on Disco 2 air suspension

So here we have it, my first post, cherry about to be popped.
Please will someone point me to an article or thread that will describe the main components of the Disco 2 air suspension, and the way they work to achieve self-levelling. This question prompted by seeing a friend's Disco rear suspension (offside only, he says) droop overnight 1 in 3 nights (not every night).

Thanks in advance, MM

Most probably leaking bag, they used to be intermittent, after you have RAVE which i linked you in your other thread you can read about the SLS operation too.

Thank you @sierrafery
I managed to obtain a pdf copy of a manual which seems quite comprehensive, if that's RAVE then hallelieuja. Looking at a copy of theSelf Levelling System (SLS - still getting used to those pesky mnemonics) I am ready to advise V8 friend to find and block off the pipe between the SLS unit and the exhaust silencer. In this way he can diagnose whether it's a failed bag or something else. He's quite skilled mechanically.
Having never even seen the SLS unit I assume the silencer will be accessible, and the pipe blockable...but that's only from reading the manual; I'll get to see another Disco today for another reason, and have a look as to the best way to seal the air into the airbags.
MM

...not forgetting to have him support the chassis first, in case he disconnects the wrong pipe and exhausts all the air from the bags!

You can't just disconnect or clamp pipes, to rule out the bags unplug the connectors in the compressor housing then the valves will be closed but if the bags are more than 6 years old just replace them and that's all cos 99% it's a bag leak, other leaks are not intermittent

For replacements get quality ones. Dunlop or Contitech.

Meldrew's mate said:

So here we have it, my first post, cherry about to be popped.
Please will someone point me to an article or thread that will describe the main components of the Disco 2 air suspension, and the way they work to achieve self-levelling. This question prompted by seeing a friend's Disco rear suspension (offside only, he says) droop overnight 1 in 3 nights (not every night).

Thanks in advance, MM

Click to expand...

Use the dash button to raise the rear up then spray soapy water on the bags to find the leaks it will probably have tiny little holes as said previously replace them after 5/6 years ive done both sets on my disco's in the last year.

Thanks all contributors, I'll advise friend of your recommendations as Disco is 15 years old and on the original air bags.

Meldrew's mate said:

Thanks all contributors, I'll advise friend of your recommendations as Disco is 15 years old and on the original air bags.

Click to expand...

They are well passed their sell by date then = time for new ones

....yep deffo time for a make-over

Did mine a few weeks back - sometimes stayed up for 2-3 days, sometimes just about overnight went down sooner in cold weather too- always just the 1 side. Swapped them & bingobango old Bruce is sitting pretty now!

.....PS MAKE SURE YOU GET A SET OF NEW CLIPS!!!!
A couple of mine disintegrated on removal (yes I mean turned to dust) - they're only pennies & was REALLY glad I remembered to get a set (2 clips per side, so 4 clips needed)