Hiss from rear suspension

I have started getting a hiss from the rear offside suspension (RHD) and now when i try to alter the suspension height will not change - it is showing at the lowest setting

1) Is it safe to drive?
2) Any ideas what the problem is
3) Can I fix it
4) Is it expensive to fix?

Thanks all

Leaking airbag, better not drive it until you have changed it. Best to change all 4. Check for leaks with a spray of soapy water, look for bubbles. Easy DIY fix if you are reasonably handy, I have an idiots guide with photo's and others have also done guides. Personally I reckon Arnott Gen 2 airbags are better than the original, others might disagree. Cost about £260 for parts, don't forget to order new retaining clips if you do decide to do it.

Oh, and welcome to the forum.

Geo1 said:

I have started getting a hiss from the rear offside suspension (RHD) and now when i try to alter the suspension height will not change - it is showing at the lowest setting

1) Is it safe to drive?
2) Any ideas what the problem is
3) Can I fix it
4) Is it expensive to fix?

Thanks all

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if got a hiss from the bac its a very good chance u have a leaking air bag . if the car has gone down this is why ,if its down on the bump stops i wanted drive .could do more damage then thier is all ready mate ..

pandy7203 said:

if got a hiss from the bac its a very good chance u have a leaking air bag . if the car has gone down this is why ,if its down on the bump stops i wanted drive .could do more damage then thier is all ready mate ..

Click to expand...

I've just had exactly the same happen to me, with a hiss from rear o/s, being very slow to come up to level, and the car v quickly settling onto its bumpstops after switching the engine off. For a week beforehand I'd noticed the car was settling overnight at its lowest level and the battery ran flat after 4-5 days, if left parked (I disconnected the rf arial but I'm hoping now that it was to do with the defective air spring waking-up the eas at intervals and flattening the battery).

I've changed the airbags (today) and found it fairly simple - although I had to resort to sheet brute force and a pry bar to get them out of their top mounting.

This site had *all* the information I needed, in the various threads over the past year or two.

The airbags can be sourced online. I got replacement Dunlops from Island 4x4 who were excellent and delivered within 24 hrs. Airbags were £115 for 2 and a full set of clips (inc. front) £12.99 (all excl. VAT)

Good luck.

i have just changed all 4 on mine due to perished bags .I have a full set of clips brand new i ordered when i did mine but my originals were as new will sell at a good price.