fullymatted.
Back to search
911uk

Sticky calliper piston

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 RESEARCHSticky calliper piston

Reported or suspected cause

sticky piston

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 · Original poster

Hi guys I have noticed that my near side calliper is grabing occasionally and suspect a sticky piston.

Sticky calliper piston
Frequently discussed work

Replace disks

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

They need to be able to come off to change disks, so if there is going to be a problem might as well face it now.

Sticky calliper piston
Read full discussion summary

Leading evidence: 'sticky piston' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'sticky piston' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Replace disks' (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 4 other evidence results

Replace disks

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

They need to be able to come off to change disks, so if there is going to be a problem might as well face it now.

Sticky calliper piston

Replace seals as well, is this doable

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

Days gone by I would just pop the Pistons clean and replace with some calliper grease, maybe change the seals as well, is this doable on these callipers or can I put some brake fluid behind the seals and exercise then.

Sticky calliper piston

Replace seals, pistons

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

If you have seen my other threads you will know I'm not one for taking the short route :floor: I would probably take the pair of calipers off the car, clean them, strip them and change seals, pistons changed as required.

Sticky calliper piston

Replace with some calliper grease, maybe

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

Days gone by I would just pop the Pistons clean and replace with some calliper grease, maybe change the seals as well, is this doable on these callipers or can I put some brake fluid behind the seals and exercise then.

Sticky calliper piston
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.

Replace disks

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

They need to be able to come off to change disks, so if there is going to be a problem might as well face it now.

Sticky calliper piston

Replace seals as well, is this doable

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

Days gone by I would just pop the Pistons clean and replace with some calliper grease, maybe change the seals as well, is this doable on these callipers or can I put some brake fluid behind the seals and exercise then.

Sticky calliper piston

Replace seals, pistons

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 you have seen my other threads you will know I'm not one for taking the short route :floor: I would probably take the pair of calipers off the car, clean them, strip them and change seals, pistons changed as required.

Sticky calliper piston

Replace with some calliper grease, maybe

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

Days gone by I would just pop the Pistons clean and replace with some calliper grease, maybe change the seals as well, is this doable on these callipers or can I put some brake fluid behind the seals and exercise then.

Sticky calliper piston
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.

sticky piston

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 · Original poster

Hi guys I have noticed that my near side calliper is grabing occasionally and suspect a sticky piston.

Sticky calliper piston
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: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi guys I have noticed that my near side calliper is grabing occasionally and suspect a sticky piston. Days gone by I would just pop the Pistons clean and replace with some calliper grease, maybe change the seals as well, is this doable on these callipers or can I put some brake fluid behind the seals and exercise then. Opinions appreciated. Steve

POST 2Original post

I would do what you say, not a difficult job Just hope the bolts come out of the upright OK. MC

POST 3 / ORIGINAL POSTEROriginal post

Would you not do them in situe. Rather than chance them bolts stripping

POST 4Original post

If you have seen my other threads you will know I'm not one for taking the short route :floor: I would probably take the pair of calipers off the car, clean them, strip them and change seals, pistons changed as required. They need to be able to come off to change disks, so if there is going to be a problem might as well face it now. MC

POST 5Original post

Might be worth looking at this thread...? http://911uk.com/viewtopic.php?t=135263

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