fullymatted.
Back to search
Rennlist

Boxster left rear banging sound on sharp ridges

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

Discussion summary

YOUR RESEARCHBoxster left rear banging sound on sharp ridges

Reported or suspected cause

diagonal control arms, sometimes called "tuning forks"

Reported cause

No successful repair reported for this finding.

1
Identified cause
0
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 report identifying 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.

Reported cause

The most common cause is the diagonal control arms, sometimes called "tuning forks"..

Original post Read captured discussion
Boxster left rear banging sound on sharp ridges
Frequently discussed work

Recommend also posting in the boxster forum

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

may I recommend also posting in the BOXSTER forum:

Original post Read captured discussion
Boxster left rear banging sound on sharp ridges
Read full discussion summary

Leading evidence: 'diagonal control arms, sometimes called "tuning forks"' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'diagonal control arms, sometimes called "tuning forks"' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Recommend also posting in the boxster forum' (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 · 5 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Recommend also posting in the boxster forum

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

may I recommend also posting in the BOXSTER forum:

Original post Read captured discussion
Boxster left rear banging sound on sharp ridges

Use on both rear and front

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 · Original poster

Are these used on both rear and front?

Original post Read captured discussion
Boxster left rear banging sound on sharp ridges
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.

Recommend also posting in the boxster forum

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

may I recommend also posting in the BOXSTER forum:

Original post Read captured discussion
Boxster left rear banging sound on sharp ridges

Use on both rear and front

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

Are these used on both rear and front?

Original post Read captured discussion
Boxster left rear banging sound on sharp ridges
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 control arms, sometimes called "tuning forks"

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying 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.

Reported cause

The most common cause is the diagonal control arms, sometimes called "tuning forks"..

Original post Read captured discussion
Boxster left rear banging sound on sharp ridges
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.

5 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 · 0 adjusted by outcome qualification.

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

Generation: 20261026T172408Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I drove a 2k Boxster S a few years ago that had this quite loud banging sound from the rear. I assumed maybe a strut or motor mount. This year, I bought an 03 doing the same thing. They drive just fine. I have a 13' pit in my garage, got under it, looked and probed everywhere and could find nothing loose. Can anyone point me to the problem? I'm thinking it must be a common problem if I hit 2 that did it. I have not pulled the shield under the front motor mount yet though.

POST 2Original post

The most common cause is the diagonal control arms, sometimes called "tuning forks"..

POST 3 / ORIGINAL POSTEROriginal post

Quotes source post: 15036205

Thank you very much for the reply. Are these used on both rear and front? The video I found was for front but my noise is in the rear. Are the rubber inserts available to rebuild them?

POST 4Original post

I have the same problem on my 2002 Boxster S. Please let me know the outcome.

POST 5Original post

may I recommend also posting in the BOXSTER forum: https://rennlist.com/forums/boxster-and-boxster-s-986-forum-67/

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