fullymatted.
Back to search
Rennlist

Stiff suspension, clonk over bumps/potholes

Add to repair workspace
Open repair workspace
Original source
11 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHStiff suspension, clonk over bumps/potholes

Leading reported evidence

Replace lower control arms

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

I solved it by replacing the lower control arms.

Original post Read captured discussion
Stiff suspension, clonk over bumps/potholes

Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.

Frequently discussed work

Recommend by schnauzer

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 used the same parts recommended by Schnauzer - fixed.

Original post Read captured discussion
Stiff suspension, clonk over bumps/potholes
Read full discussion summary

Leading evidence: 'Replace lower control arms' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'diagonal lower control arms' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Recommend by schnauzer' (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 · 11 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Use same parts

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

I used the same parts recommended by Schnauzer - fixed.

Original post Read captured discussion
Stiff suspension, clonk over bumps/potholes

diagonal lower control arms

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
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 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

For clunks over bumps I suspect the diagonal lower control arms:

Original post Read captured discussion
Stiff suspension, clonk over bumps/potholes

Recommend by schnauzer

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

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 used the same parts recommended by Schnauzer - fixed.

Original post Read captured discussion
Stiff suspension, clonk over bumps/potholes

Tighten top nut

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

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 have PSS10s in my C2, and had a clunk from the top mount, easily fixed by tightening the top nut.

Original post Read captured discussion
Stiff suspension, clonk over bumps/potholes
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.

Recommend by schnauzer

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 used the same parts recommended by Schnauzer - fixed.

Original post Read captured discussion
Stiff suspension, clonk over bumps/potholes

Replace lower control arms

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

I solved it by replacing the lower control arms.

Original post Read captured discussion
Stiff suspension, clonk over bumps/potholes

Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.

Tighten top nut

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 have PSS10s in my C2, and had a clunk from the top mount, easily fixed by tightening the top nut.

Original post Read captured discussion
Stiff suspension, clonk over bumps/potholes

Use same parts

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

I used the same parts recommended by Schnauzer - fixed.

Original post Read captured discussion
Stiff suspension, clonk over bumps/potholes
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.

diagonal lower control arms

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

For clunks over bumps I suspect the diagonal lower control arms:

Original post Read captured discussion
Stiff suspension, clonk over bumps/potholes
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.

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

  • Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 1 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261027T060112Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi I have something similar to PSS10 on my car. When going over bumps and potholes i hear a boink from the front. Curious where this sound is coming from? Sounds like someone is hamering ontl the strut mounting points.

POST 4 / ORIGINAL POSTEROriginal post

Quotes source posts: 14670118, 14670273

I inspected them and they look fine, what should I lool for? hmm. How do i inspect them?

POST 5Original post

I had a front-end clunk going over pavement cracks at slow speed. I solved it by replacing the lower control arms. The telling thing in my case was that the clunk went away when I applied a bit of brake. Since then, the shop that did the work has had other 996 customers with the same problem who they were able to fix in the same way. http://www.epscontrolarms.com/996-lower-control-arm

POST 6 / ORIGINAL POSTEROriginal post

Quotes source post: 14670369

So was it the bushing in the control that was worn out?

POST 7Original post

Quotes source post: 14670541

Yes, but it isn't available separately. I used the same parts recommended by Schnauzer - fixed. Also a very easy DIY. GL

POST 8 / ORIGINAL POSTEROriginal post

Quotes source post: 14670594

Got it. Maybe that what it is, I will inspect and see if I can find something. Hmm....i JUST did an alignment....TWICE (don't ask)...

POST 9Original post

Quotes source post: 14670096

For clunks over bumps I suspect the diagonal lower control arms: https://rennlist.com/forums/996-foru...-arms-wow.html

POST 10Original post

Quotes source post: 14670635

I don't believe a visual inspection will disclose much. Concerning your alignment, replacement of those parts won't affect it. GL

POST 11Original post

Hard to diagnose this from a keyboard across the interweb... I have PSS10s in my C2, and had a clunk from the top mount, easily fixed by tightening the top nut. But that isn't to say yours is this (or any of the other poster's suggestions). In my opinion, the only way to figure this out is to put it up in the air on a lift and inspect all of the suspension parts, push, pull, tug, and pry until you find the culprit. Or take it to a shop and let them do it.

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