Xantia Ct 98 LHM leak from strut area
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  1. #1
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    Default Xantia Ct 98 LHM leak from strut area

    Hi, Lydia is too shy to ask so it falls upon her father to pose the question.

    She has a 1995 CT Xantia that has done 170k and has recently lost about 1litre of LHM in the last week and now it is low again. There is a leak somewhere around the top of the RHS front suspension mount, but I can't see it leaking while it is idling. It doesn't look like the high pressure line and it doesn't look like the low pressure return from the bottom. Is there some other place near the top that it can leak from?????

    Thanks, Erik

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  2. #2
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    Hi Lydia - hope you enjoy driving your Turbo CT as much as I do!

    First step - check the brake valve boot! This seems to perish and leak more quickly on the Turbo CTs than on other Citroens - perhaps because of the greater heat being produced. I now have two '97 CTs, and this has happened to both. Fluid level drops, but nothing drips on the ground - you can't understand where it's going , but unfortunately the thick spongy underlay can easily soak up a litre of LHM before you notice .

    Just put your hand up under the brake pedal and feel for LHM, or lift driver's side carpet. Eric, no doubt you know the procedure for removing the brake valve to replace this rubber cover? Even if it's not the culprit this time, unless you have already replaced it, you should do it now - the age and number of kilometers demand it! If it has not yet happened then it is not too late to save the carpet; if it has already happened then the driver's side carpet will never be the same again .

    Flexible hoses to top of front suspension weep and look wet/oily on both my Xantias, but the amount lost there is minimal, unless there is an actual split, in which case you will see the LHM oozing while the car is sitting at normal height.

    Cheers

    Alec

  3. #3
    Fellow Frogger! Balki's Avatar
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    the suspentions sphere seal could be leaking if spheres isnt tight

  4. #4
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    OK I have found the leak.

    Xantia Ct 98 LHM leak from strut area-xantia-sphere.jpg
    It is oozing out of this pipe. So what is that one, where does the other end attach and where do I buy one from? Is it high pressure or low pressure?

    The boot under the brake pedal is still fine, but where do i get one of those from Alec?

    Thanks, Erik/Lydia

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    1000+ Posts Ken W's Avatar
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    Hi Erik/Lydia,

    This pipe is the main suspension pressure pipe that comes from the hydractive controller that mounted just below the radiator under the air cleaner box. If you can take it out, I am pretty sure that a hydraulic hose repairer could replace the rubber hose bit.

    Any Citroen parts supplier will have the brake valve boot as they are the same on BX, CX and Xantia. Just a bit of a fiddley job that is easiest done with the engine out. If other drain back hose assemblies have not been replaced, these will be very fragile too and most are not available any more so be really careful.

    Cheers,

    Ken W

    Cheers,

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    Thanks Ken, she will get onto it, but i don't think she wants to remove her engine just at the moment...

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    Eric that engine bay is a credit to you - if it's really a '95 then it must have lead a very easy life. Or have you just found a stock picture of a Xantia - that's not a CT (turbo) - it's a 16 valve! And by the red cap on the fuel isolation switch, I suspect it's a Series II (98 or later).

    I had those pipes replaced when I got my Xantia 7 years ago as they were very 'wet'; originals were rebuilt by a hydraulic hose specialist. Didn't stay dry all that long, but at least they haven't split. My "new" Xantia - like Lydia's - has an actual split in the hose, so will try my local hydraulic shop.

    If Lydia's car is actually a 16-valve, the boot valve seems less likely to split than on the Turbo CT model, but Addo will verify that they can and do split! As Ken says, the brake boot valve is readily available, and a pig to fit. I have paid people to do both Xantias I've owned (after first one failed).

    As for return hoses - the brake valve low pressure return hose leaked after the brake boot was replaced - would drain entire LHM tank overnight. It's a 2-layer hose - looked OK from outside, but internal layer was split. Cutting it off and fitting a joiner didn't work, as the internal layer split wherever we tried it (although I think once I got well away from turbo/exhaust area I was able to fit a little joiner and retain the moulded parts of the hose near the LHM tank).

    Cheers

    Alec

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    Quote Originally Posted by Erikbm View Post
    OK I have found the leak.

    Click image for larger version. 

Name:	Xantia sphere.jpg 
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    It is oozing out of this pipe. So what is that one, where does the other end attach and where do I buy one from? Is it high pressure or low pressure?

    The boot under the brake pedal is still fine, but where do i get one of those from Alec?

    Thanks, Erik/Lydia
    Wow, nice and clean and tidy!

    I can't offer specific advice, but others have already (our Xantia is a normal 2.0i). The return lines (low pressure, rubber, ending up at the reservoir) are all getting old and tired now. Somewhere here there is a thread about replacing them and I've posted photos of new ones with dimensions. There are a few around, and if you are going to keep the car I'd do a bit of searching and get some in a dark place. They will fail and split more and more. Building an alternative system is realistic I reckon.

    Anyway enjoy the car. Xantias are greatly under-rated.

    Best wishes
    JohnW

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    Actually it is a stock photo, but the engine bay is close to that. We have now removed the pipe, wow, what a job. It has about 45 different bends. We eventually removed the radiator to make enough room to wiggle it free. I might ask the repairer to put a join in it to get it back in.

  10. #10
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    Quote Originally Posted by Erikbm View Post
    Actually it is a stock photo, but the engine bay is close to that. We have now removed the pipe, wow, what a job. It has about 45 different bends. We eventually removed the radiator to make enough room to wiggle it free. I might ask the repairer to put a join in it to get it back in.
    Sounds like a very good idea!
    JohnW

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  11. #11
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    I think some people tended to get Pirtek / Enzed etc. to repair these in situ and possibly add a joiner where you can get at it in future.

  12. #12
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    The nagging feeling is that rubber ages with age. If this hose has ruptured, how lucky do you feel with the others? I replaced the complete harness on my Xantia VSX after procuring a collection of different hose diameters, a few hose clamps and some nylon joiners. Although the job can be intimidating at first, once you set the mind to renew the lot and leave plenty of time to do it, it is fairly straightforward. The plus point for staying focussed is that you know you won't have to revisit this for at least another 10 years or more, which usually translates to never.

    A job done in your own time in your garage is ten times easier than one done on the side of the road.

    John

  13. #13
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    Good thought John, But I feel extraordinarily lucky. Besides which the other side is shorter and slightly easier to get at.

    Erik

  14. #14
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    i had a local hydraulic man repair the pipe and put an extra join in it for $120 which seems like quite a good price. I had to take out the radiator and a headlight and loosen the top stay across the front, but then I could get the pipe out. The improved pipe is now back in and I am reassembling the rest of it. The extra join makes a huge difference.

  15. #15
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    Default Is this coincidence? Maybe not.

    Quote Originally Posted by Erikbm View Post
    i had a local hydraulic man repair the pipe and put an extra join in it for $120 which seems like quite a good price. I had to take out the radiator and a headlight and loosen the top stay across the front, but then I could get the pipe out. The improved pipe is now back in and I am reassembling the rest of it. The extra join makes a huge difference.
    Today, discovered a leak in the same right hand top strut high pressure rubber hose ( attached to sphere housing) as Erikbm. The coincidence continues in that we also have a CT turbo (1997) with 165k km. Once again Aussiefrogs has come to the rescue with good advice (and timely) on how to fix. Thank you to all.

  16. #16
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    Glad to be of help. I didn't mention that you also have t take out a few other things n that corner, but you will get the hang of it.

    if it is more than mere coincidence, then I am sad to tell you that in another 2,000km you will develop another leak on the other side, but not the hose this time. Haven't quite got to the bottom of it yet, but it is from the strut somewhere...

    Erik

  17. #17
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    Quote Originally Posted by Erikbm View Post
    i had a local hydraulic man repair the pipe and put an extra join in it for $120 which seems like quite a good price. I had to take out the radiator and a headlight and loosen the top stay across the front, but then I could get the pipe out. The improved pipe is now back in and I am reassembling the rest of it. The extra join makes a huge difference.
    We had a high pressure hose repaired with a flexible section about 8 years ago on the BX and it is still fine.
    JohnW

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  18. #18
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    Quote Originally Posted by moulton2speed View Post
    Today, discovered a leak in the same right hand top strut high pressure rubber hose ( attached to sphere housing) as Erikbm. The coincidence continues in that we also have a CT turbo (1997) with 165k km. Once again Aussiefrogs has come to the rescue with good advice (and timely) on how to fix. Thank you to all.
    Hang on there. A high pressure RUBBER hose? Really?
    JohnW

    Renault 4CV 1950 (R1062)
    Renault R8 1965 (R1130)
    Renault Scenic Series II 2005 (wife's)
    Renault Scenic Series II 2006 (daughter's)
    Renault Scenic Series II 2007 (mine)

    CitroŽn CX Pallas 1980 (moved on to new custodian)

    National Co-ordinator, Renault 4CV Register of Australia

  19. #19
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    Quote Originally Posted by JohnW View Post
    Hang on there. A high pressure RUBBER hose? Really?
    my steel pipe from the pump rubbed through because of a slack dropkick who worked on the auto did not re-clamp it.
    got a hydraulic workshop who dealt in fixing farm-earth moving repairs to join the pipe ends to rubber hose,
    perfect job was done in armidale, got me back on the road and has been perfect, was on a xm

  20. #20
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    Quote Originally Posted by denxm View Post
    my steel pipe from the pump rubbed through because of a slack dropkick who worked on the auto did not re-clamp it.
    got a hydraulic workshop who dealt in fixing farm-earth moving repairs to join the pipe ends to rubber hose,
    perfect job was done in armidale, got me back on the road and has been perfect, was on a xm
    Our BX pipe was exactly the same cause, pinhole leak (a LOT of fluid, all atomised). A flexible, steel-braided hose was attached, and silver soldered for that belt and braces feeling. Surely the rubber is steel reinforced? It's quite a pressure.
    JohnW

    Renault 4CV 1950 (R1062)
    Renault R8 1965 (R1130)
    Renault Scenic Series II 2005 (wife's)
    Renault Scenic Series II 2006 (daughter's)
    Renault Scenic Series II 2007 (mine)

    CitroŽn CX Pallas 1980 (moved on to new custodian)

    National Co-ordinator, Renault 4CV Register of Australia

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