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Thread: c5hydros

  1. #1
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    Default c5hydros

    Cit men,Suspension ride not fancied on C5 09 .Very much top roll and twitchy rear end on rural main roads.UTS. Can it be reprogramed? Tomfrog

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    Never noticed a rear twitch. Use Sport mode and firm it up. A lot of owners use sport mode except on motorway-type surface.

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    seasink/ sports mode little better but not much. still rolls top heavy sidways on undulating road surface . sometimes bloody dangerous. wheel alignment needed or tyres ? Where do I locate suspension specalist? Thanks Tomfrog

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    I wonder if there's a wheel height sensor problem. I'll leave it for someone better informed though. Do you have access to a Lexia (computer reader)?

    C5s normally drive well.

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    They are a little more 'floaty' than the previous model and the Xantia/XM/BX.
    Perhaps, check your tyre pressures to begin with?
    Measure the front and back of the tyres on each axles with a tape measure to roughly check the toe-in is not significantly off zero.
    Are any of the tyres badly worn or scalloped? They can sometimes wear in an odd way, even the rear ones.
    Have you checked for soggy/failed bushes? Check particularly the back of the front lower control arms and the eye bush at the bottom of the front uprights. Is something loose in the rear end / rollbar?
    Wheel alignment OK? I was recently told by a technician that a particular C6, which has virtually the same suspension, needed a full alignment to get it tracking properly. Not sure why it was out in any case.
    What does it's recent history suggest? Dealer serviced? Crashed??? High miles?? Previous alignments?

    Specialist? Sydney? Or is there someone closer? Perhaps, check the ride height is OK? The book may give you measurements. Anyone should be able to check the alignment at normal ride height. You want to make sure you have the toe specs and know which units are given. Sometimes they are in mm and sometimes degrees. If they've been confused, the setting could be wrong. There may be an adjustment for each rear wheel too?
    Last edited by David S; 25th June 2014 at 11:34 PM.
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    Steering angle sensor? If so, you will need a new com2000.

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    DavidS Thanks for the information. Not many Ks on car 72000. so I will start with tyres and full wheel alignment. Off to Wagga next week

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    You'll find the geometry discussed from p441 at the handbook pdf sitting in http://service.citroen.com/dtt/CDP/d...II/2008_c5.zip. It's the 2008 edition.

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    Hi Seasink,

    A link to the English version of the 2008 C5 handbook pdf would be really handy for us French illiterates.

    Cheers,

    Ken W

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    I'd love to, but haven't found an online source. service.citroen stopped English in 2005, the previous model.

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    seasink. Thanks for info . Now back to Temora High for french revison.Tomfrog.

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    It can be a bit awkward, but there's always https://translate.google.com.au/. Nothing like owning une voiture franÁaise to revive schoolday memories.

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    Obviously you must have the correct tyres at the correct pressure and the wheel alignment to the book. After that you can check the mechanical components for wear or damage. Beyond that you need specialised knowledge and equipment. I would strongly advise against a non-CitroŽn suspension specialist. Best to go to someone like Continental in Sydney who have the computer gear and the experience. I can always translate an odd half page for you but the manual generally assumes that you have the test gear for anything beyond mechanical measurements.
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    Thanks Gerry for your .information.Wheel alignment first then tyres , thanks also to ADDO.TOMFROG.

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    Quote Originally Posted by tomfrog View Post
    Cit men,Suspension ride not fancied on C5 09 .Very much top roll and twitchy rear end on rural main roads.UTS. Can it be reprogramed? Tomfrog
    Tom,

    Here's a couple of articles which may point you in the right direction:

    Forums / The Garage / Adjusting C6 suspension height - C6owners

    Forums / The Garage / "Suspension Faulty"! - C6owners



    Good luck

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    Thanks C0n .I did get a wheel alignment and drop the tyre pressure by 3-4psi . made a vast difference but still a little twitcheyat the rear.Iwill keep looking. Tomfrog . 75 on thursday. O GOD?

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    Tom,

    The suspension on these does not track as well as the trailing arm suspension of old. I also do notice a twitch from the rear especially when the car crosses unbroken tarmac. It is especially noticeable if this occurs during cornering. I have just accepted this as a mild disappointment in the march of 'development'.

    Cheers,

    Ken W

    PS I am doing pretty well using google translate on the C5 mechanics handbook.

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    Thanks Ken.Tomfrog

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    Quote Originally Posted by Ken W View Post
    Tom,

    The suspension on these does not track as well as the trailing arm suspension of old. I also do notice a twitch from the rear especially when the car crosses unbroken tarmac. It is especially noticeable if this occurs during cornering. I have just accepted this as a mild disappointment in the march of 'development'.

    Cheers,

    Ken W

    PS I am doing pretty well using google translate on the C5 mechanics handbook.
    Where did you find the C5 mechanics handbook Ken and does it cover the 2.1 diesel? (2002)

    SF

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    Tom, it's the French link I gave earlier for the 2008 on car. The 2002 earlier C5 (in English) is at CARNETS DE POCHE. Use the letters in your VIN to determine the engine code used tn the manual.

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