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Ride Harshness, tyre Pressures and Suspension bush age

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5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHRide Harshness, tyre Pressures and Suspension bush age

Leading reported evidence

Replace few months prior

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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 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

All 4 dampers and top mounts replaced a few months prior to replacing suspension arms.

Ride Harshness, tyre Pressures and Suspension bush age
Frequently discussed work

Adjust tyre pressures and i dropped mine accordingly

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 found the threads related to a TSB to adjust tyre pressures and I dropped mine accordingly.

Ride Harshness, tyre Pressures and Suspension bush age
Read full discussion summary

Leading evidence: 'Replace few months prior' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Adjust tyre pressures and i dropped mine accordingly' (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.

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1 matching discussions · 5 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Adjust tyre pressures and i dropped mine accordingly

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

I found the threads related to a TSB to adjust tyre pressures and I dropped mine accordingly.

Ride Harshness, tyre Pressures and Suspension bush age

Adjust tyre pressures back down

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

It was only today that I realized I hadn't had to adjust the tyre pressures back down.

Ride Harshness, tyre Pressures and Suspension bush age

Replace arms

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

The biggest difference came when I replace all arms on all 4 corners.

Ride Harshness, tyre Pressures and Suspension bush age

Replace suspension arms

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

All 4 dampers and top mounts replaced a few months prior to replacing suspension arms.

Ride Harshness, tyre Pressures and Suspension bush age
Frequently discussed actions (6)

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

Adjust tyre pressures and i dropped mine accordingly

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 found the threads related to a TSB to adjust tyre pressures and I dropped mine accordingly.

Ride Harshness, tyre Pressures and Suspension bush age

Adjust tyre pressures back down

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

It was only today that I realized I hadn't had to adjust the tyre pressures back down.

Ride Harshness, tyre Pressures and Suspension bush age

Replace arms

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

The biggest difference came when I replace all arms on all 4 corners.

Ride Harshness, tyre Pressures and Suspension bush age

Replace few months prior

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

All 4 dampers and top mounts replaced a few months prior to replacing suspension arms.

Ride Harshness, tyre Pressures and Suspension bush age

Replace suspension arms

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

All 4 dampers and top mounts replaced a few months prior to replacing suspension arms.

Ride Harshness, tyre Pressures and Suspension bush age

Replace those as well

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

If your shocks are original try replacing those as well.

Ride Harshness, tyre Pressures and Suspension bush age
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.

  • 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: 20261026T152433Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

This isn't a eureka moment, but... I found the ride on my C4S quite harsh. I found the threads related to a TSB to adjust tyre pressures and I dropped mine accordingly. The ride was greatly improved. I replaced all off the suspension links in November and had the alignment done. The alignment Centre commented that they had to put a few pounds into each tyre. I explained why. It was only today that I realized I hadn't had to adjust the tyre pressures back down. The ride - obviously due to the new rubber bushes - is supple at standard factory pressure and 12 month old PS2s So for those that find the ride in their cars quite harsh, just consider the age of suspension bushes, as while they may not be making any noise or knocks, the younges 996 Bushes are now 14 years old and will have lost their elasticity. Dropping tyre pressures will only mask the real issue. Just food for thought for those unhappy with a harsh ride.

POST 3Original post

If your shocks are original try replacing those as well. My car had a harsh ride. I chased a number of things to improve it, but it was new shocks that made the ride compliant and took the edge off the 'crashiness' of the ride. They were OK to pass the MOT, but MOT does not test the full function of the shocks.

POST 4Original post

:yeah: The diagonal arms in particular made the the biggest difference on mine.

POST 5 / ORIGINAL POSTEROriginal post

All 4 dampers and top mounts replaced a few months prior to replacing suspension arms. The biggest difference came when I replace all arms on all 4 corners.

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