15 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHClunk from rear end!
Leading reported evidence
Check anti-roll bar
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Leading evidence: 'Check anti-roll bar' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check anti-roll bar' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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Suggestion
When you looked at the sway bar, did you carefully check the bushings?
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
Have checked tailpipes and they are very firmly attached :?
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
15 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T003124Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I seem to have acquired a clunk from the rear of my C4 and, as I don't have a garage (or anywhere clean and dry to have a good look underneath), can anyone tell me if there is a common issue that it's likely to be?
Doesn't seem to have a noticeable effect on handling, not audible at higher speeds - just low speed bumps. Have checked tailpipes and they are very firmly attached :?
Are anti-roll bar bushes prone to failure? Or shocks? MOT passed 2,000 miles ago with no advisory items.
Failing that it's a trip to the local Indy I guess - more time and money lost!
First thought was a broken exhaust bracket - that sort of noise, but as I say, no significant movement apparent in tailpipes.
The other similar noise I have had in previous car ownership was a broken spring leaf on my Mk2 Cortina!!! :lol: Hope it's not that again... :shock:
I thought that, but surprised it doesn't seem to have affected handling? May be just a worn bush or something...
Will have a quick look tomorrow if it stops raining long enough.
Is it more of a rattly clunk over speed humps, potholes etc that you can hear with the window open?
If so, I've been advised that a similar noise on mine is the handbrake mechanism needing adustment.
It does sound a bit like that... I've had a quick look underneath (couldn't see much without a ramp), and anti-roll bar is in one piece and seems attached OK, ride height the same both sides (so that would rule out a broken spring).
I'll see if it gets any worse today!
Hi David, can you elaborate on this? I'm not aware of them being a point of failure, although many add Motorsport control rods to minimise deflection and movements in geo.
dont call me stupid but just have a quick lookie at the spare wheel compartment just to see if anything is floating around in there? it had me going for ages especially going over speed humps.
call me stupid if you want!
When you looked at the sway bar, did you carefully check the bushings? It may be worth taking out the 4 bolts that hold the sway bar brackets and making sure the rubber bushings are not worn or partially missing. Very simple, don't even need to jack up the car.
