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Fluttering or rattling noise on poor road surfaces |
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seasix |
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Joined: Jul 17 2010
Member No: #184
Location: FLIMWELL |
Having really enjoyed 3 years of trouble free 'wafting around', my 56000 mile C6 has been in 3 times to cure a mystery rattling apparently coming from the front end. It has had new pivot supports, front lower swivel bearings (all worn out) but still the rattling over bumps. Any ideas please as my Citroen specialist now suggests turning up the radio - not why I bought a C6 ! | ||
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cruiserphil |
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Joined: Jan 24 2010 Member No: #38
Location: Celbridge |
Have they checked the anti roll bar links? I had to replace one recently following the symptoms you describe. Also while doing it, found play in an inner track rod and replaced that as well!! Regards, Phil C. |
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Stealth |
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Joined: Aug 11 2012 Member No: #986
Location: Sydney |
Does the rattle tend to only happen when you're turning corners? Say, for example, turning into a street with an upward slope? |
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seasix |
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Joined: Jul 17 2010
Member No: #184
Location: FLIMWELL |
No, the rattle is there whenever the road is not absolutely smooth. | ||
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Dave Mc |
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No Longer Active
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When I had my 6 I experience the same problem and it turned out to be the under tray was loose. Easy enough to check. | ||
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rogerandoutman |
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Joined: May 10 2011
Member No: #466
Location: London |
have you replaced the anti rollbar linkages if the ball joint has worn you will get a loud knocking over any uneven surface. have replaced my rears twice and only just 50000 miles. they are inexpensive, but get european manufacture not china copies. try rockauto.com US site but supply from UK | ||
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seasix |
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Joined: Jul 17 2010
Member No: #184
Location: FLIMWELL |
Ball joints have been replaced, will check anti roll bar links, track rod ends and under tray after Christmas. Many thanks for all your suggestions - I will post the result. | ||
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ChrisHunter |
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Joined: Jul 20 2010
Member No: #188
Location: Lancashire |
we sometimes get what we think must be the under-tray fluttering when we come over a small rise as we're approaching a T-junction - not looked, but suspect it must be made of some sort of textile fabric, at least in-part ... | ||
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ChrisW |
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Joined: Jun 18 2013
Member No: #1335
Location: Surrey |
I know this is an old thread, but I think I have the same problem, but the noise appears to come from the rear and not the front. It's as if the vibration of the car from a bad road causes something in or under to move or vibrate in sympathy. It happens at lowish speeds. No rattling on motorways. I know it's a long shot, but I would be grateful for any suggestions. This is what I have done so far, without success: - Emptied the car of anything that moves, incl the spare wheel, tool kit, etc. - Checked the boot and roof lining, under the seats, etc for anything loose. - Put it on ramps and checked and fixed anything underneath capable of movement - Removed the tray underneath the engine and checked and fixed everything that moves. It rattles even with the tray removed, so it's not that. - Checked bushes for play (it does not sound like a bad bush, which in my experience cause clunking noises) - Jacked the wheels up and checked for any play in the wheel bearings, bushes etc. Tiny play in OSF wheel bearing but not enough to cause vibration or trouble MOT inspector. The front suspension was overhauled a couple of years ago. - Taken the wheels off and checked for damaged or loose wheel arch linings and anything loose. - Taken the car to my local garage (which knows it well). Took the mechanic for a drive, and he identified the sound and put it on the lift. The only thing he found was some play in the rear drop links. Replaced, but no change. - It just passed MOT with no advisories. The only possible clue is that rattle appeared shortly after driving through a shallow flood that caused a bow-wave under the car. But I could not find any evidence of possible damage from this. Lost power steering in the flood, so the aux belt must have got wet and was slipping. All OK once out of the flood. As you can imagine, it's doing my head in! Not so much the rattle itself, but that I can't fix it! Any help much appreciated. |
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C6Dave |
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Joined: Oct 01 2009 Member No: #1
Location: Northumberland |
ChrisW wrote ... Going to throw a curve ball here if you cannot find a physically loose part. Could it be something in the fuel additive or return systemI know this is an old thread, but I think I have the same problem, but the noise appears to come from the rear and not the front. It's as if the vibration of the car from a bad road causes something in or under to move or vibrate in sympathy. It happens at lowish speeds. No rattling on motorways. I know it's a long shot, but I would be grateful for any suggestions. Is the vibration causing the additive suction device to 'flutter'? |
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cit-rotti |
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Joined: Dec 03 2018
Member No: #3753
Location: Bayern |
If there are rattles/pops when the suspension is compressed, the front wheel arch liners may come into contact with the suspension mountings. Did these wheel arch liners have to be removed for repair work? Greetings Wolfgang |
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cruiserphil |
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Joined: Jan 24 2010 Member No: #38
Location: Celbridge |
Hello ChrisW, Check the handbrake support brackets! I posted this on the C6 owners facebook page. |
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ChrisW |
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Joined: Jun 18 2013
Member No: #1335
Location: Surrey |
Thank you so much for your quick and helpful replies. Dave - you may be onto something. My low Elyos warning has just come on (several weeks after the rattle started). I will book it in to top-up Wolfgang - these linings were top of my checklist because the flood might have loosened them. Took the wheels off - they were all tight. Phil - I will get under the car (yet again!) and check these. Here's hoping! |
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ChrisW |
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Joined: Jun 18 2013
Member No: #1335
Location: Surrey |
I got under the car yesterday after reading your replies. Yes! The right-hand handbrake cable was loose. It goes through a circular metal clip with a thick rubber bush. The bush had worked its way out of the clip and the cable was free to rattle. Got it! I thought. Worked the bush back into position. Went for test drive. Aargh - no change. Next stop the eloys. Thanks again for you suggestions. |
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