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Air Suspension D2

Discussion in 'Land Rover Discovery' started by Graham Allen, Feb 24, 2018.

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  1. slither22

    slither22 Active Member

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    When you use the button to lift the suspension make sure that all the doors are properly closed as when i finished the repair i didn't realise at first the tailgate door wasent closed properly so the suspension wouldn't lift. If replacing airbags and the height sensors are quite old it maybe worth replacing them aswell. There are videos on YouTube for the repair kit for the compressor. I think having someone diagnose the problem saved me alot of time and working blind without really knowing what the issue was.
     
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  2. slither22

    slither22 Active Member

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    I'm looking to upgrade my diagnostics to one that also scans the sls aswell the one i have at the moment does everything apart from suspension on the td5 disco.
     
  3. brianconwy

    brianconwy Well-Known Member

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    I changed the air filter, dessicant and piston ring on my compressor and it ran alright for a while and then the compressor packed in altogether.
     
  4. slither22

    slither22 Active Member

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    Have you connected it direct to a battery as mine kept cutting out and it turned out tobe height sensor failure.
     
  5. brian47

    brian47 Well-Known Member

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    It does rise slowly and will continue to rise while the little light is flashing. Don't expect to press the button and the disco to pop up.
     
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  6. Graham Allen

    Graham Allen Member

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    Question, when I fit new bags tomorrow, could air be leaking back through the pipe, as I can't find leaks on the old bags
     
  7. Alpinejim

    Alpinejim Member

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    Yes, your solenoids valves could be playing up as I mentioned in a previous post.
    They open to let air to each bag but if they don't close, or open by themselves later, the air will come out again.
     
  8. Graham Allen

    Graham Allen Member

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    Thanks for that. anyway I can check? or service them
     
  9. Graham Allen

    Graham Allen Member

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    cool, where are they located?
     
  10. Landmark2

    Landmark2 Active Member

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    In the compressor.
    Griff
     
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  11. brian47

    brian47 Well-Known Member

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    This should give you some idea:-

    Untitled.gif
    Untitled1.gif
     
    Last edited: Mar 7, 2018
  12. Graham Allen

    Graham Allen Member

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    Thanks That's brilliant, another silly question, when fitting new height sensors, do you tighten the bottom arm up tight or leave a bit of movement?
     
  13. Graham Allen

    Graham Allen Member

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    Really appreciate all the help. I have replaced the airbag on the offending offside and all seems good, will replace the nearside this weekend, just one problem, I lost the olive from the valve, doesn't look like I can get another valve, so any ideas, the old bags had the guest push in type but the ones I bought came with the screw in valve, that in itself is a mission trying to get a spanner on it
     
  14. slither22

    slither22 Active Member

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    I did my sensors tight but i think they need abit of movement so when i get a chance i think that i will adjust them so they can move and see what happens.
     
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  15. brian47

    brian47 Well-Known Member

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    According to the w/shop manual, they should be tight:-

    Untitled.gif
     
  16. slither22

    slither22 Active Member

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    In that case i think i will leave them alone then. Thanks for the info. I just thought that they needed to rotate.
     
  17. brianconwy

    brianconwy Well-Known Member

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    It makes you wonder why they use a bush if they are not supposed to pivot.
     
  18. slither22

    slither22 Active Member

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    I had to break the old sensors up abit when i removed them as the female thread on the chassis side of the sensor was broken the bolt was just spinning and the other side of the disco the sensor arm was stuck on the bolt on the radius arm so i did the engineers solution i hit them with a big hammer.
     
  19. brian47

    brian47 Well-Known Member

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    If all else fails, use a bigger 'ammer!
     
  20. Graham Allen

    Graham Allen Member

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    It does say tighten bolt, but to my way of thinking,they fail due to the metal rod going through the rubber by the metal sleeve, if there was a small bit of movement that wouldn't happen
     
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