2010 C5 X7 right rear strut pipe leaking
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Thread: 2010 C5 X7 right rear strut pipe leaking

  1. #1
    Tadpole
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    Default 2010 C5 X7 right rear strut pipe leaking

    The dealer failed my car's rego test due to the right rear strut pipe leaking. I've read a few threads and one talks about the front strut misting and not really leaking. I'm not sure where to look, but the manual shows a pipe going from the rear strut to the spheres located on the centre of the rear 'axle'. Is this where they mean?

    I got it rego'd at another mechanic, but because he didn't even look under the car I would like to satisfy my mind about whether it really needs fixing.

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    Here's a pic. The strut goes into the alloy cross member. There are four spheres connected.
    2010 C5 X7 right rear strut pipe leaking-cit-c5-052.jpg

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    Another 2010 C5 X7 right rear strut pipe leaking-fc1a2ad0123abcd21a998a5675d435feo.jpg

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    Fellow Frogger
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    If it's not the cylinder leaking and it is on the RH, then it might be either the pipe or just the bonded metal/rubber seal under it. If it leaking at a swaged joint, then you either buy a new pipe/hose from Citroen or visit Pirtek / Enzed etc.. As I mentioned in another thread yesterday, the seals were not listed with the pipes in the parts book, so it may look like you can't buy it separately to the pipe. You look on the page called something like 'piping brackets' and the ring seals are listed. I'm sure some people will have bought new piping just to get the seal. There are at least two sizes and they were used on earlier C5 and some very late Xantia at least at the pressure regulator.

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    Thanks guys, I'll let you know how I get on.

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    Hi Seasink,
    My friendly mechanic got under the car and reckons the leak is from the seal between pipe and strut. He can't understand why you have to drop the rear subframe and reckons he MIGHT be able to get a new pipe and seal in without the 5 hours of labour quoted by the dealer. Can you shed any light on the possibility of doing the job without dropping the subframe?

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    It doesn't win an accessibility prize. I haven't tried it, presumably via the wheel arch, so good luck.

    The suspension must be at low, on a hoist and hanging. Does this mechanic have a Diagbox/Lexia to depressurise? It takes about 3 minutes to release.

    Battery is then disconnected or the pump disabled.

    You can manually depressurise by attaching a hose and slow bleeding the screw on the centre fitting. 36 in the picture. Discard the LDS that is released. Use new LDS to top up.

    See DavidS post above re seals.
    2010 C5 X7 right rear strut pipe leaking-screenshot-2.jpg

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    Fellow Frogger! JAJEA's Avatar
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    Please excuse.

    I know nothing about the C5 hydraulics but recently I've gone through the process off getting a Xantia (1998) on the Victorian roads. One issue was a hydraulic leak from the RHS strut. The problem was the return line (which is in essence hose clipped to the side of the suspension strut ) was perished and thus "holed". it was a very simple fix. Without original parts that would have had to come from the mother country of the Xantia.

    2010 C5 X7 right rear strut pipe leaking-img_4665.jpg2010 C5 X7 right rear strut pipe leaking-img_4663-1-.jpg 2010 C5 X7 right rear strut pipe leaking-img_4664-1-.jpg2010 C5 X7 right rear strut pipe leaking-img_4666-1-.jpg

    Your mechanic saying it is a leak between the pipe and the strut needs to be more precise - is it from the pressurized side or the non -pressurized side of the hydraulic system?

    Regards JAJEA

    Quote Originally Posted by Gar du Nord View Post
    Hi Seasink,
    My friendly mechanic got under the car and reckons the leak is from the seal between pipe and strut. He can't understand why you have to drop the rear subframe and reckons he MIGHT be able to get a new pipe and seal in without the 5 hours of labour quoted by the dealer. Can you shed any light on the possibility of doing the job without dropping the subframe?

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    1000+ Posts Ken W's Avatar
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    JAJEA,

    C5 X7 and C6 struts don't have return lines which is a bit of a mixed blessing as although there are no return lines to worry about, if the strut starts to leak badly, then its time to replace the whole strut. Sounds like there is a new sort of seal where the pressure pipe joins the strut to deal with as well.

    Cheers, Ken

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    Gaining knowledge on Citroens.

    Thanks Ken, interesting set up - so the pressure is reduced and released into a central "reservoir". It does not have to travel all the way back from each component / sphere.

    John

    Quote Originally Posted by Ken W View Post
    JAJEA,

    C5 X7 and C6 struts don't have return lines which is a bit of a mixed blessing as although there are no return lines to worry about, if the strut starts to leak badly, then its time to replace the whole strut. Sounds like there is a new sort of seal where the pressure pipe joins the strut to deal with as well.

    Cheers, Ken

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    The clever stuff happens at the multi-way valve in the centre.

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    Default 2010 C5 X7 right rear strut pipe leaking

    [QUOTE=seasink;1491559]It doesn't win an accessibility prize. I haven't tried it, presumably via the wheel arch, so good luck.

    The suspension must be at low, on a hoist and hanging. Does this mechanic have a Diagbox/Lexia to depressurise? It takes about 3 minutes to release.

    Battery is then disconnected or the pump disabled.

    You can manually depressurise by attaching a hose and slow bleeding the screw on the centre fitting. 36 in the picture. Discard the LDS that is released. Use new LDS to top up.

    See DavidS post above re seals.
    Click image for larger version. 

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    Hi All,
    Well it turns out that it is not a 5 hour job involving the removal of the entire rear axle / subframe as suggested by the Citroen dealer's workshop manual and the head mechanic at the local dealer.
    My mechanic and I raised the car on blocks, lowered the suspension and drained (only a tiny amount of LDS came out) from the bleed nipple in the centre of the rear spheres.
    Then with a 1/4 inch drive and a torx bit and some manual dexterity due to the tiny amount of space at the top of the rear strut he removed the rear hydraulic pipe in about 5 minutes. We inspected it and it seems to be leaking at the swaged joint between rubber hose and metal pipe. At the end of the pipe that pushes into the top of the strut there is a green O-ring which seemed to be ok and when the pipe was pushed back in you could feel a bit of resistance as the O-ring went in.
    The whole job from start to finish took about 30 minutes.
    I managed to find Genuine parts from a UK Citroen specialist that supplies genuine and he can get the pipe from France in a few days for GBP 144.00 = $AU240 plus $50 shipping which is $80 cheaper tthan Citroen dealers in Australia. However, he can get the same genuine parts, in Citroen packaging, from elsewhere in Europe for GBP75 = $125 plus $50 shipping if I am prepared to wait 3 or 4 months. I can live with a slight drip that only needs topping up with half a litre every 2000kms.
    p.s. Penrite LDA01 is compatible fluid and their RRP is $29.99/litre. Repco sell it for $36, but I asked for a discount and can now get it fo $24.57 / litre! Citroen genuine LDS is about $75 per litre in Australia. Here's a picture of the driver's side rear suspension pipe, sorry about the quality. The part no. is 5270VF,2010 C5 X7 right rear strut pipe leaking-citroen-c5-rear-suspension-.jpg2010 C5 X7 right rear strut pipe leaking-citroen-c5-rear-suspension-x7.jpg No.4 on the diagram.
    2010 C5 X7 right rear strut pipe leaking-img_3976.jpg
    Last edited by Gar du Nord; 1st March 2017 at 11:15 AM.
    seasink and BallinaOB like this.

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    Fellow Frogger! Greg's Avatar
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    Hi Guys,

    Think you will find it is the pipe seal thats the problem, and sorry David your not correct, the seals are in the parts book, just take a private investigator to find them.

    I have some so contact me at [email protected] or send me a private message.

    Best regards,

    Greg
    We Have:
    C5 HDI Exclusive 2.7 '09, Pluriel '09, Berlingo 1.6 HDI '10, C4 VTS coupe. C4 Picasso '08, 2CV Charleston '84 Grey, 2CV, '55 Australian delivered. 15/6 H '55, SM '74 BVM, DS21 EFI BVH, DS21 '67 BVH.
    We Had:
    1930C6F, '73 GS1220 wagon X 2, '75 G special, '75 GS panel van, '74 GS Birotor, '82 GSA panel van with factory AC, '85 CX25GTI BVM, 2002 C5 V6, 2006, C5 S2 HDI, '86 BX19GT, '72 DS21 BVM, '55 15/6H, '54 Lt 15,'73 Dyane, '82 Visa Super X, with Chrono Mecs & factory AC, 1972 SM.

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    Fellow Frogger! Greg's Avatar
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    Attachment 94103Attachment 94104

    BTW,

    For next time, the pipe seals are under Hydraulic Suspension> Piping brackets> There are about 5 seals listed.

    The seal for the rear tubes are a rubber metal type part no 5280P9 See Pics.

    Generally its the seals that leak, but if it is the pipes, they should come with new seals, but if not, should be changed.

    Best regards,

    Greg
    We Have:
    C5 HDI Exclusive 2.7 '09, Pluriel '09, Berlingo 1.6 HDI '10, C4 VTS coupe. C4 Picasso '08, 2CV Charleston '84 Grey, 2CV, '55 Australian delivered. 15/6 H '55, SM '74 BVM, DS21 EFI BVH, DS21 '67 BVH.
    We Had:
    1930C6F, '73 GS1220 wagon X 2, '75 G special, '75 GS panel van, '74 GS Birotor, '82 GSA panel van with factory AC, '85 CX25GTI BVM, 2002 C5 V6, 2006, C5 S2 HDI, '86 BX19GT, '72 DS21 BVM, '55 15/6H, '54 Lt 15,'73 Dyane, '82 Visa Super X, with Chrono Mecs & factory AC, 1972 SM.

  15. #15
    Fellow Frogger
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    Yes, that was what I'd intended to note down for future reference. Thanks for giving that part number. Those special bonded rubber/steel seals are not listed where you might expect them to be. I'd previously found them on the piping brackets diagram rather than in the most logical place with the pipes! Late Xantia used them in a couple of place too, including at the pressure regulator, but they may be a smaller diameter. There were two useful diameters listed from memory.

  16. #16
    Tadpole
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    FYI. The bonded seals above are not part of the suspension pipes on my C5 X7 2010 Exclusive sedan. They must be for a different C5.


    Sent from my iPhone using aussiefrogs

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    Fellow Frogger! Greg's Avatar
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    Hi Guys,

    Yes your right..........

    The seal for that pipe is 5280Y2 I think the other seal is where the rigidity sphere interconnect with the main sphere, at least at the front?

    I don't have any sorry, but have put some on order just in case for our own X7. PM me if you need some and can't get them?

    The rear strut connection is a bit like a modern AC connection?

    Best regards,

    Greg
    We Have:
    C5 HDI Exclusive 2.7 '09, Pluriel '09, Berlingo 1.6 HDI '10, C4 VTS coupe. C4 Picasso '08, 2CV Charleston '84 Grey, 2CV, '55 Australian delivered. 15/6 H '55, SM '74 BVM, DS21 EFI BVH, DS21 '67 BVH.
    We Had:
    1930C6F, '73 GS1220 wagon X 2, '75 G special, '75 GS panel van, '74 GS Birotor, '82 GSA panel van with factory AC, '85 CX25GTI BVM, 2002 C5 V6, 2006, C5 S2 HDI, '86 BX19GT, '72 DS21 BVM, '55 15/6H, '54 Lt 15,'73 Dyane, '82 Visa Super X, with Chrono Mecs & factory AC, 1972 SM.

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