8 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH718 Cayman Rattle - Page 1 - Boxster/Cayman - PistonHeads UK
Leading reported evidence
Adjust handbrake as per the manual made it go away
Suggestion or failed attempt
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 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
Adjusting the handbrake as per the manual made it go away.
Leading evidence: 'Adjust handbrake as per the manual made it go away' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Adjust handbrake as per the manual made it go away' (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.
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.
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.
8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
PistonHeads: 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
PHers I have a bit of a strange issue with my 2018 Cayman S. I have noticed intermittently that when I hit a bump the rear passenger side of the car emits what I can only describe as a jingling sound (think keys or sleigh bells).
Speed, temperature etc don't seem to be a cause - it feels like it emerges randomly and is only audible from the outside (I.e. i can only hear it when the windows are down).
I took a video of the underneath of the car and nothing looks loose - suspension also otherwise seems fine.
Any suggestions?
Might not be applicable, but I had something very similar on a 996 that took me ages to find; it was the handbrake shoes/springs rattling and it went away if you put slight pressure on the handbrake. Adjusting the handbrake as per the manual made it go away. Not sure if a 2018 Caymen will have the same setup though?
SK555 said:
PHers I have a bit of a strange issue with my 2018 Cayman S. I have noticed intermittently that when I hit a bump the rear passenger side of the car emits what I can only describe as a jingling sound (think keys or sleigh bells).
Speed, temperature etc don't seem to be a cause - it feels like it emerges randomly and is only audible from the outside (I.e. i can only hear it when the windows are down).
I took a video of the underneath of the car and nothing looks loose - suspension also otherwise seems fine.
Any suggestions?
Even if everything looks tight visually, try checking:
Heat shields around the exhaust: These are infamous for developing small cracks or loosening at the mounting points, causing a metallic rattle or jingle.
Exhaust hangers: Rubber hangers or metal brackets can wear out or lose tension over time.
Internal baffles inside the muffler**: If one has broken loose, it may create a jingling noise when shaken (this can be intermittent and only under certain vibrations).
Tip: With the car off and cool, lightly tap the exhaust system with a rubber mallet or fist — listen for any rattling that matches your issue.
Even if the suspension seems fine, check:
Drop links (sway bar end links) – if slightly worn, they can produce a metallic rattle over bumps.
Upper shock mounts or bushings – a loose or degraded mount may allow the strut to move slightly, causing a light metal-on-metal sound.
Spring perch or coil binding – rare, but a slight movement of the spring in its seat can sound strange under load changes.
Brake pad anti-rattle clips: If one is missing or installed incorrectly, the pad can shift slightly over bumps.
Backing plates (dust shields) behind the brake rotor: They can get bent slightly and vibrate against the rotor or hub.
Tip: Try driving over a speed bump slowly and then applying light brake pressure during the bump — if the sound disappears, it might be brake-related.
I had a rattle from a 718 Boxster S. The dealer attached some microphones to the chassis and we went for a drive… the iPad device the technician had showed exactly where the rattle was coming from by comparing the data from all the microphones. Clever!
A suspension component was switched out and… fixed!
