Strut knock on compression C5 X7 2009 Diesel 4 cyl
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Thread: Strut knock on compression C5 X7 2009 Diesel 4 cyl

  1. #1
    jya
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    Default Strut knock on compression C5 X7 2009 Diesel 4 cyl

    Hi All. Recently changed front lower suspension arm mounting bushes x 3 per side, on both front sides as well as perished boots either front side as well.
    All 6 bushes delivered were about $200. Combination of local on line suppliers and flea bay UK. The front boots were about $50 for the pair.
    Local mechanics charged well; $110 per hour x 5.5 hours. So $605... Should have shopped that one around more.
    Anyhow soon after I am now getting a knocking noise from the front RHS strut, on strut compression which is definitely getting worse. Around 95,000 km on clock.
    The same local mechanics have no idea where exactly it is coming from. They looked in the hydraulic reservoir and noticed the fluid level was below the third level on the plastic grille inside the plastic tank. No obvious hydraulic oil leaks so I doubt I am loosing fluid.
    They couldn't see anything obvious either around the top spheres.
    Time for a new strut/whole assembly perhaps? Strut tower mount? Not sure there is a conventional tower mount?
    Any feedback would be much appreciated.
    These mechanics are reasonably set up and did a reasonable job of replacing the boots, and all the lower perished bushes. They lower bushes were worse on the RHS.
    Some other prices on parts I have ordered. Not sure how sharp the pricing is but all local supplied including postage:
    Timing belt $95
    Oil filter $10
    Front brake kit (rotors/pads) $217
    Fuel filter $36
    Rear brake kit $136
    All European sourced parts.

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    Finally for the Melbourne based; has anyone used the specialists on Grange Road Fairfield?

    Cheers,
    2009 Citroen C5 HDI
    Triumph Stag
    Triumph 2500S
    Jaguar S Type R

  2. #2
    Fellow Frogger
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    You should definitely change the timing belt on age if never changed before.

    To check the LDS level, put the car to low and make sure it's approx. at the seam of the reservoir. The level indicator in the reservoir is for when you have depressurised the system via the diagnostic tool, so it's not that useful. You don't check any C5/C6 at max height as was always the case with the earlier models using LHM (and red fluid before that)

    For the knock, re-check the bottom eye bush on the front upright, which I assume you have just replaced. It's more like a rubber pivot than a bush and some versions of this part don't seem to last long. Sasic seems to be both cheap and OK there. There have also been some aftermarket vendors selling the wrong bush for that application and it changes the geometry a little. Check carefully.

    Which boots? Front struts?

  3. #3
    jya
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    C5bushAngled.jpgC5bushBlack.jpgC5bushSilver.jpg

    Thanks very much David for the reply.

    Any advice on labour time to replace belt? Degree of difficulty?
    Not sure where the fluid level I need to check when you say 'at the seam of the reservoir'? Do I ignore the level indicators?
    I have attached photos of the 3 bushes I replaced. The 'angled' one was a 'Borg and Beck' brand. I assume it is this one that needs more attention?

    By boots I mean the front drive shaft boots, they were ripped on both ends.

    Cheers
    Last edited by jya; 3rd April 2019 at 07:57 PM. Reason: Forgot to mention about boots
    2009 Citroen C5 HDI
    Triumph Stag
    Triumph 2500S
    Jaguar S Type R

  4. #4
    Tadpole
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    Make sure sway bar link bolts are tight. Front struts on these donít usually make a knock ever. Check ball joints too. Common problem.
    antonio likes this.

  5. #5
    jya
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    Thanks for all your comments Gents.
    I realised that it was not the strut at all.
    Ended up being 180674 the engine RH 'Anti-Torque Link' bush and the bush below attached to it 184493 "Engine Elastic Mounting Bracket'. The vertical stud encased in the rubber of this bush broke away from the rest of that large rubber bush.
    This knock developed soon after the 3 lower bottom arm bushes were replaced, which may have had something to do with it.
    The torque link was pricey at $70 and the large (mostly rubber) mounting bracket at $86.
    The car now drives like a dream and the knocking is gone.
    It would have to be the crazy amount of speed humps we deal with here in inner Melbourne..
    antonio likes this.
    2009 Citroen C5 HDI
    Triumph Stag
    Triumph 2500S
    Jaguar S Type R

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