911uk

Clattering from back end

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7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHClattering from back end

Reported or suspected cause

elongated hole where the strut is bolted

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

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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 suspect a cause: 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.

Suspected cause
Could be suspension bushes, but I had something similar and it turned out to be an elongated hole where the strut is bolted to the lower suspension link.
Original post Read captured discussion
Clattering from back end

Frequently discussed work

Replace after some time

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
They corrode and start rattling around the PU area if they have not been replaced after some time.
Original post Read captured discussion
Clattering from back end

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Leading evidence: 'elongated hole where the strut is bolted' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'elongated hole where the strut is bolted' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Replace after some time' (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.

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1 matching discussions · 7 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Replace after some time

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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
They corrode and start rattling around the PU area if they have not been replaced after some time.
Original post Read captured discussion
Clattering from back end

Test slightly pull the handbrake, and if the rattle lessens

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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
I can hear mine with the window open over rough ground- easy test- slightly pull the handbrake, and if the rattle lessens, then thats what it is.
Original post Read captured discussion
Clattering from back end

Frequently discussed actions (2)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace after some time

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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
They corrode and start rattling around the PU area if they have not been replaced after some time.
Original post Read captured discussion
Clattering from back end

Test slightly pull the handbrake, and if the rattle lessens

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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
I can hear mine with the window open over rough ground- easy test- slightly pull the handbrake, and if the rattle lessens, then thats what it is.
Original post Read captured discussion
Clattering from back end

Reported and suspected causes (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

elongated hole where the strut is bolted

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that suspect a cause: 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.

Suspected cause
Could be suspension bushes, but I had something similar and it turned out to be an elongated hole where the strut is bolted to the lower suspension link.
Original post Read captured discussion
Clattering from back end

Coverage and how to read this overview

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.

7 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: 20261026T213932Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Purchased C4s (2003) a month ago and love it but am noticing a slight clattering noise that is almost certainly related to the suspension. You only get it on rippled roads or roads where there is bump after bump. For eg - speed bump; no problem but rippled road and its there. Problem is in Sheffield a good third of the roads are like this. My previous car 993 C4 was a harder ride but did not knock or clatter. Any ideas?

POST 2Original post

I have something similar, but from the front end (mine is a C2 though). Doesn't happen over a speed bump, but does when going down a small hole in the road and back up. Difficult to describe, sounds a bit like a stone is caught (which I don't believe there is) or like there's something slightly lose....bit rattly/clattery. I think it's the bushes and am going to take it to Camtune for their opinion (as I'm sure suspension, bushes, shocks and springs aren't covered under warranty).

POST 3Original post

Could be suspension bushes, but I had something similar and it turned out to be an elongated hole where the strut is bolted to the lower suspension link. I tightened up the bolt and it stopped (and hasn't recurred in 10,000 miles since) - worth a look at least.

POST 4Original post

What about the clamps holding the exhaust? Mine kind of does the same but only on severe bumpy roads or cobble stones...

POST 5Original post

Maybe heat shields? They corrode and start rattling around the PU area if they have not been replaced after some time.

POST 6Original post

Handbrake linkages a little loose? I can hear mine with the window open over rough ground- easy test- slightly pull the handbrake, and if the rattle lessens, then thats what it is.

POST 7 / ORIGINAL POSTEROriginal post

Car booked in... and will mention your suggestions. Thanks - will report back with a solution when one is found!

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