So I've just sorted the 'failing to run' problem (replaced fuel pump), and now I have an eas problem:
Whilst driving today I suddenly had a 'rumble' sound that came from offside front and sounded like loosing traction. It would happen on acceleration (hard) and then again on braking (hard). I had to drive home about 12 miles and ended up with 'inactive suspension'. Checking faults I had both ABS - 0x8a air suspension system CAN error and EAS 0x64 Articulation Validty Fault. Clearing these they would return once driven again.
I then noticed that the front suspension air bag was completely soft whilst the rest were hard (but the corner was not particularly low). Raising it to off-road height it stays inflated. Driving it again at normal height you seem to get a catastrophic deflation for it to only pump up again and remain when parked.
I think I've worked it out but would like opinions before I spend £200 on a new strut:
The bag leaks when a forward or reverse action exposes hole/split. The 'rumble' is tyre slip because of no pressure in bag allowing it to 'bounce' when driven hard (ish). The 2 errors are because of this.

Am I on the right tracks? Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr

Last edited by Lenb on 17th Nov 2015 8:06pm. Edited 1 time in total

Sounds about right, I'd confirm the split before replacing, and as the shock is integral with the strut you should change them in pairs... Delphi are OEM, Dunlops apparently don't last as long.... Pete

__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

It's been standing now for a couple of hours and you can push the bag in with your thumb about half inch (the others are solid). I've tried the soapy water but can't see any bubbles. Is there anywhere else where air can leak out affecting just one air bag?

Len Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr

The struts are not connected to each other usually so it will be somewhere on the bag or in the pipe from the front valve which is at the rear of the drivers wheel arch. The hole could be in the fold of the bag and leaking very slowly so you won't hear it and bubbles could take some time to show themselves, start the engine, take it up to off road height and try the soapy water. Pete

__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

As Haylands says.
The split in the airbag is probably tucked out of sight in the 'roll' so it's pressed against the strut and partially sealed at normal height. As soon as there's any movement in the suspension then it leaks (and gives you the issues you describe). Try leaving it in off road height and squirting a lot of soap and water up under the roll of the bag at the bottom. You could also try jacking that corner up (on the chassis) so the strut droops, I could hear mine leaking before I found it with soap and water.
The only other place it could leak on that one corner would be the pipework back to the cross link valve, worth checking but the air bag is the most likely place for leaks.

One of the cheapest places for OEM replacement struts is Island4x4.

My front O/S bag has a leak, initiallly hard to find, but after a few days got worse. If I raise the car to off-road height, I can hear air hissing out of the centre of the strut. have just bought 2 new Delphi units from Dan @ Duckworths, Island are quoting £249.50 + vat, Dan did them for £225 + vat  2006 (56 Reg) 4.4 V8 Vogue In Bonatti Grey (Gorgeous!!)

Bought two struts from Paddocks, £258 each (Delphis). Turned out near side had been done about 2 years ago (before I bought it) but was a Dunlop (will sell this on the bay of e). Offside was original, so now waiting for the rears to go

Len Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr

Last edited by Lenb on 17th Nov 2015 8:29pm. Edited 1 time in total

Rears last much longer than fronts, mine is still on the originals... (jinxed them now though )

Glad it's sorted

 Pete

__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

That's nice to know, could do with a bit of a rest from repairs - especially as it's now cold and wet

Len Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr

"cold and wet".... aaarrr that'll be new alternator and battery then.....  Pete

__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-