Disco II Sls Issue

[5teve]

Hi Guys

Done a lot of reading but not really come up with anything. We have a 2002 Disco 2 with ORIGINAL airbags :) - Yes I know they probably need changing. Heres the issue tho..

The back end of the car sags when stationary and off - equally both sides - and intermittently - sometimes it can go a week without doing it - then can start doing it nearly every time its turned off. Then stop again! Seems to me like a dicky valve rather than the bags but can the valves be bought separately - or whole compressor job?

Thoughts and opinions welcome!

Steve

[sierrafery]

Hi,my money is on the bags(or only one of them), that's classic bag leak behaviour.... replace them both and you'll be OK IMO, and do it ASAP cos they'll kill the compressor too as it compensates for the leak while driving and will wear out at a point or will go to exceeded duty cycle default and stop, even in the unlikely case that it's a valve issue such old bags are not to be kept anymore also a valve leak in most cases is not intermittent so replaceing the bags would be the logical move cos it's 99% that will cure it and if not you can find valve block(air supply valves) separately if there's the issue

[bsperka]

X2 for the bags and advice.

[laney]

?3 my air bags done exactly what yours are doing I replaced mine with springs no problems now.

[5teve]

Thanks Guys

Will get the bags on order - Are the conti or dunlop ones the go?

Now for my next issue!

Steve

[jwb]

Definitely go Contitech. I replaced my original Conti's at about 7 years and the Dunlops started leaking after 4 and were very perished on inspection. I had kept the non leaking original Conti as a spare and ran it for a while and it was over 11 years old!

Buy from UK delivered in a week. Also get the compressor overhaul kit and replace the piston ring and o-ring. Don't forget the inlet filter behind the right rear tail light.

[sierrafery]

It was only a "limited edition" of dodgy dunlops around 2012 year and after some inconvenience they were removed from the market... these days dunlops are 100% reliable

...my air bags done exactly what yours are doing I replaced mine with springs no problems now.
please dont do that m8, the fact that you downgraded your vehicle is not some good advice IMO:angrylock:

[5teve]

I wont be changing to springs - I like the airbags.. especially for towing.

Ordered the compressor kit - just trying to get clarification if a local supplier has conti's or cheap chinese copies.. I think they are conti's. and if he has the clips..

Thanks again all...

Steve

[jwb]

Most likely you'll be able to re-use your clips. Mine have always been in good condition. We don't have the same rust issues as those colder climates with salted roads. Unless you've done a lot of beach driving, I guess.

[5teve]

I guess you are right - but murphys law says one will break and i'll delay the job by a week! :)

I have spoken to the airbag supplier and they will throw them in FOC :)

Steve

[LandyAndy]

Steve.
Have you got a Nanycom????
As Sierra says if you have a leak it will throw excess duty cycle faults.
I helped a mate out,exact same problem.
He bought 1 elcheapo bag from Ebay,the problem went for a short time so he replaced the other all was good.
You may just be lucking out with the bag self sealing depending on the angle of the dangle,plus the alignment of the stars and moon when you park it.
One thing you will enjoy,they are one of the easiest repair jobs you will find on that D2;);););););)
Andrew

[5teve]

Hi Andy

Yep got the very original MK1 Nanocom.. so all good - its not throwing any faults - which is weird.. but I think we may be getting lucky - when it goes down it goes quick - but when we generally leave the engine running for 10 secs after stopping its fine.. so assume the crack / hole only leaks when the bags are a bit low... very random though.

I've got the genuine conti's one the way so should be good for another 14 years :)

I'll look forward to the job then :D

Steve

[jwb]

And the compressor refurb is very satisfying as well. Couldn't believe how quickly it pumps up now.


Next project is to install an LED on the dash to show when the compressor is running so can monitor any abnormalities and the kit to manually lower the back. It's been sitting on the bench for a couple of years.

[Mumfy1973]

Steve

Have you plastered the bags with soapy liquid.......A mate had the same issue he found his bag was porous hes replaced them but the previous owner was running it too long with that problem now his compressor is shot