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Thread: Disco 3 Suspension Issues

  1. #1
    Join Date
    Nov 2020
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    Sydney
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    2

    Disco 3 Suspension Issues

    Ive just purchased a 2007 Land Rover Discovery 3 4.0 Petrol with 185000kms and a full Land Rover service history. After 1,000 kms driving back from Dandenong South to Sydney to bloody suspension fault light came on and now the suspension is lowered.

    ADVICE:

    What are my options and costs to rectify the issues? Is it best to change the suspension from air to "normal" suspension and who would you recommend in Sydney (The Hills area) to work on my vehicle as I need to sort the issues quickly.

    Thanks in advance.

  2. #2
    Join Date
    Jan 1970
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    Canberra
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    16,824
    You need to find out what the issues are first or it is just guesswork - with all things D3/D4 you will need to get the codes read and that will point you in the right direction.

    Not sure why you would want to change over to coils - should have bought a Toyota in that case. The air system is relatively simple once you take the time to learn about it and is easy to maintain and repair - BUT you need to know the ins and outs of it and how it works.

    Garry
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon

  3. #3
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    Location
    Melbourne
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    Chances are that the compressor needs replacing. You can get one from the UK for under $700 delivered, or you can pay at least double that for local stock. But either way, get the codes to confirm the exact issue before spending money.
    D4 HSE. Starting the build.

  4. #4
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    Quote Originally Posted by TuffRR View Post
    Chances are that the compressor needs replacing. You can get one from the UK for under $700 delivered, or you can pay at least double that for local stock. But either way, get the codes to confirm the exact issue before spending money.
    Why would you buy a new compressor when the Hitachi (OEM on a 07) is perfectly rebuildable for a fraction of the price.

    Now if in some time in the past it has been replaced with an AMK (which is not a better compressor that the Hitachi) then things may be different and you will pay more than $700 for a AMK. Never by a knock off or the buyer will be back with issues soon enough.
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon

  5. #5
    Join Date
    Aug 2012
    Location
    Braidwood, NSW
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    I think Davies Performance is out your way. A number of forum members go there and have a good experience.

    As the others have said, get the codes read and diagnosis should be pretty easy. If it is the compressor, replacing it yourself is pretty simple. If a rebuild suits, take it out and put it back in yourself to save the labour costs.

    Good luck
    -------------------------
    Chris Phillips


    Offroader: 1996 Discovery 300TDI (The Green Donkey)
    Missus: 2010 Discovery 4 TDV6 (Fancy thing)
    Just 'cause: 1999 Discovery SE 3.9L V8 (Makes fun noises, sometimes...)
    Spares: 1998 Discovery 300TDI (Only vehicle actually in the garage..........)

    Run around:
    2001 Nissan Pulsar ST 1.8L (Soul crusher)

  6. #6
    Join Date
    May 2014
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    Point Cook, VIC
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    Disco 3 Suspension Issues

    As Garry notes - need to read fault codes first. If it is the compressor then the faults codes will clearly point to this. The Hitachi unit is easy to rebuild.

    But if it is a collection of seemingly unrelated faults then you start the slow process of elimination.

    Also check fuses - when you start the car the compressor should start up.

    And check the electrical plugs for corrosion at the Transmission Control Module (TCM) located behind the battery.

    And no - do not convert from air to coil springs. You will regret this. The air suspension is what makes these cars brilliant.

  7. #7
    Join Date
    Jan 1970
    Location
    NSW South West Slopes
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    10,290
    A failing compressor will run for a few minutes but if the suspension doesn't get to the selected height within the allowed time then the suspension will drop to the bump-stops. Often the compressor will be able to get the vehicle up enough to allow it to be driven, possibly by selecting access height after switching on the ignition but before starting the engine to get the vehicle level then selecting normal height. Once at a useful height switch off the engine, remove the 20A suspension fuse in the engine bay fuse box to prevent the air valves from being opened to lower again. After this, remove the 5A suspension fuse from the passenger fuse panel which is behind the passenger glove-box to prevent the annoying 35kph warning message and chimes.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
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  8. #8
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    437
    Quote Originally Posted by 101RRS View Post
    you will pay more than $700 for a AMK. Never by a knock off or the buyer will be back with issues soon enough.
    Nah mate. Genuine AMK landed from the UK last week for less than $700. That's the going rate with most of the suppliers over there. Makes local prices seem ridiculous.
    D4 HSE. Starting the build.

  9. #9
    Join Date
    Mar 2016
    Location
    Kenthurst, NSW
    Posts
    45
    If you are in The Hills District, Bruce Davis would be your best bet. Davis Performance is out at Windsor but busy.

    I'm in The Hills District (Kenthurst), I can let you use my Gap IID diagnostic tool. That will give you the codes and the more knowledgeable on this forum can then give you options.

    PM me if you are interested.

    I replaced my AMK last year, imported from the UK, cost ~$700 350 delivered from Island 4x4. Replacement was easy, less than an hour.

    Regards
    John
    2014 XXV D4, Traxide, Front Runner rack, APT sliders and protection, Runva winch, ARB bull bar

  10. #10
    Join Date
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    Canberra
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    16,824
    Quote Originally Posted by XXVDisco View Post
    I replaced my AMK last year, imported from the UK, cost ~$700 350 delivered from Island 4x4. Replacement was easy, less than an hour.
    Just looked at their site - at that price it is a knockoff - their price for the genuine landrover AMK is 600 pounds - Air Suspension Compressor Kit (Genuine) *LR072537* LR023964 LR010376 RQG500160 R Island 4x4 - Specialists in Land Rover and Range Rover Parts and accessories for all models. UK and worldwide mail order.

    But is academic as the OP most Likely has a Hitachi.
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon

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