Porsche Club GB

Slight knocking noise from rear suspension

Add to repair workspace

New repair projectOpen repair workspace

Original source

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHSlight knocking noise from rear suspension

Leading reported evidence

Replace before i owned the car

Performed · outcome unconfirmed

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 performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
This was my first item to check as I have receipts for the front drop links being changed before I owned the car but no history of the rear ones being changed.
Original post Read captured discussion
Slight knocking noise from rear suspension

Frequently discussed work

Check tonight

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 · Original poster
I would check tonight but its freezing outside in the garage.
Original post Read captured discussion
Slight knocking noise from rear suspension

Read full discussion summary

Leading evidence: 'Replace before i owned the car' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check tonight' (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.

Read captured replies

1 matching discussions · 6 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Check tonight

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 · Original poster
I would check tonight but its freezing outside in the garage.
Original post Read captured discussion
Slight knocking noise from rear suspension

Check without actually removing them

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
Not so easy to check without actually removing them but they should firm (ie.
Original post Read captured discussion
Slight knocking noise from rear suspension

Replace once the car is in the air

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
Easy & cheap to change once the car is in the air.
Original post Read captured discussion
Slight knocking noise from rear suspension

Frequently discussed actions (4)

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

Check tonight

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 · Original poster
I would check tonight but its freezing outside in the garage.
Original post Read captured discussion
Slight knocking noise from rear suspension

Check without actually removing them

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
Not so easy to check without actually removing them but they should firm (ie.
Original post Read captured discussion
Slight knocking noise from rear suspension

Replace before i owned the car

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
This was my first item to check as I have receipts for the front drop links being changed before I owned the car but no history of the rear ones being changed.
Original post Read captured discussion
Slight knocking noise from rear suspension

Replace once the car is in the air

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
Easy & cheap to change once the car is in the air.
Original post Read captured discussion
Slight knocking noise from rear suspension

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.

6 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Porsche Club GB: 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: 20261027T044418Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Any ideas of common problems? Noticeable at slow speed over rough roads not very noisy but does not sound normal?? Thanks

POST 2Original post

Most likely culprit is one of the anti-roll bar drop links, which is a very common cause of knocking on rough surfaces. They are easy enough to check if you can get the car up in the air. Just undo the lower end, and you can feel if it has any play.

POST 3 / ORIGINAL POSTEROriginal post

Thanks Richard. This was my first item to check as I have receipts for the front drop links being changed before I owned the car but no history of the rear ones being changed. Any other likely culprits? I would check tonight but its freezing outside in the garage. thanks

POST 4Original post

Rear ARB bushes can produce a knocking noise when they get worn. Not so easy to check without actually removing them but they should firm (ie. not perished) & not look deformed. Easy & cheap to change once the car is in the air.

POST 5 / ORIGINAL POSTEROriginal post

The drop links are fine, no play but the ARB bushes look old and not a very tight fit in the housing. Difficult to judge really but think I will just order some new ones and see if they make any difference.

POST 6Original post

other thing to look at is the forked control arms

This is a source reference. Confirm exact model applicability in the original material.