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TD5 air suspension height sensors

Discussion in 'Land Rover Discovery' started by broadoakboy, Sep 16, 2008.

  1. broadoakboy

    broadoakboy New Member

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    Quick question.

    Can I change the ride height sensors myself or is it a LR job? Do they need calibrating?

    After a week of different tests I have decided my air suspension isn't leaking (as sometimes it stays up all the time over night) so it must be the sensors.

    Comments please!
     
  2. eightinavee

    eightinavee Well-Known Member

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    So what is it doing wrong ?
     
  3. Nige Cowie

    Nige Cowie New Member

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    Hi,
    Sensors are plug and play, but don't cause vehicle to drop when stationery over night, this could be a problem with the left / right solenoids in the compressor box (blue & white connector) only available with a new compressor. First off mix a soapy solution of water and spray total area of air springs and watch for any bubble (will develope to look alike frog spit as seen on plants)
    The system may need calibrating, I'm 26 miles from Chester and can calibrate and check these systems if need be.

    Nige
     
  4. broadoakboy

    broadoakboy New Member

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    if I raise the TD5 up to its highest setting and leave it overnight, it will still be up at the same height in the morning.

    If I leave it at normal height, 50% of the time it will have sunk down to the bottom by morning (or after only 3-4 hours).

    Both sides are even, it isn't leaning one way or the other.

    I thought it might be the sensors as surely if there was a leak, it would leak every time?

    When the engine is running, there is a little intake/out take of air (perhaps the compressor topping up the system) every 10 seconds, is that normal?
     
  5. Nige Cowie

    Nige Cowie New Member

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    Hi,
    Comp running every 10 secs. is too much. The air springs fold inside them selves at the base, this will explain why it doesn't do at high setting. Spray them with soapy solution as I said before.

    Nige
     
  6. broadoakboy

    broadoakboy New Member

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    Ok, i'll give that a go and get back to you.

    Thanks for the advice.
     
  7. eightinavee

    eightinavee Well-Known Member

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    Yes,leaky air springs,and fix it quick or you will need a new comp as well.
     
  8. broadoakboy

    broadoakboy New Member

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    Am I doing something wrong?? When I jack the rear wheels, (at the correct place on the arm) the suspension deflates to match the jack coming up, so when I take the wheel off there isn't much suspension bag to see, to spray the soapy water on!! HELP!!
     
  9. battenberg

    battenberg Well-Known Member

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    does this suggest to you that the ride height sensors are doing their thing??
     
  10. broadoakboy

    broadoakboy New Member

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    aaahhhhhh, I see!! I think i'll stop messing around and just replace the damn air springs!!
     
  11. Andy gee

    Andy gee Member

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    I have a height difference by around 2cm down on the right, I've seen some threads saying use a nanocom to calibrate and it should be ok.

    Try calibrating first if you can get a nanocom, I could do with one myself.

    I'm in Swindon wilts if anyone wants to help
     
  12. biggeeeee

    biggeeeee Retired - Living the dream

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    Doesn't look as if there is anyone near you with the correct Nanocom

    https://www.google.com/maps/d/u/0/v...ll=51.673568673076645,-1.687542015625013&z=10
     
  13. Andy gee

    Andy gee Member

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    I may fund one myself before long!!!
     
  14. biggeeeee

    biggeeeee Retired - Living the dream

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    Well worth the money, pays for itself over and over, if you have the motor for any length of time and doesn't lose that much when sold on.
     
  15. neilly

    neilly Well-Known Member

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    Are you replying to a very old post? Or are you asking for help to fix this issue on yours?

    Yes, very easy to do with a nanocom.

    Cheers
     
  16. Andy gee

    Andy gee Member

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    Replied on an old post without realising but I do need my ride height calibrating if you can help, work in didcot

    Andy
     
  17. neilly

    neilly Well-Known Member

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    If you ever get up to Banbury area , then I can do it.

    Cheers
     
  18. Andy gee

    Andy gee Member

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    Great thanks bud, I'll follow you so I can contact you again when I'm passing through

    Cheers

    Andy
     
  19. biggeeeee

    biggeeeee Retired - Living the dream

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    Have you checked your height sensors, one may be on its way out.
    If the motor is down on one side, is it all the time or does it settle over time?

    Fraid I can' assist you with the calibration, I live in Scotland and no longer have the Disco II or Nanocom, sold it on here just before Christmas.
     
  20. neilly

    neilly Well-Known Member

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    Also,

    Double check your measurements, std height according to the manual is.

    upload_2017-1-17_14-31-40.png

    So you know your target heights.

    Cheers