Porsche Club GB

996T brakes stuck!

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Original source

7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH996T brakes stuck!

Reported or suspected cause

incorrect master cylinder

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 · Original poster
Apparently this was due to an incorrect master cylinder that had been fitted (not PSM compatible).
Original post Read captured discussion
996T brakes stuck!

Frequently discussed work

Fill with water

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
Early Boxsters had a problem with the servos filling with water, but I doubt that it is the problem.
Original post Read captured discussion
996T brakes stuck!

Read full discussion summary

Leading evidence: 'incorrect master cylinder' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'incorrect master cylinder' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Fill with water' (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 · 7 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Install (not psm compatible)

Performed · outcome unconfirmed

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
Apparently this was due to an incorrect master cylinder that had been fitted (not PSM compatible).
Original post Read captured discussion
996T brakes stuck!

Repair by them

Performed · outcome unconfirmed

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 got my golf vr 6 abs ecu repaired by them
Original post Read captured discussion
996T brakes stuck!

Fill with water

Suggestion or failed attempt

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
Early Boxsters had a problem with the servos filling with water, but I doubt that it is the problem.
Original post Read captured discussion
996T brakes stuck!

Frequently discussed actions (3)

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

Fill with water

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
Early Boxsters had a problem with the servos filling with water, but I doubt that it is the problem.
Original post Read captured discussion
996T brakes stuck!

Install (not psm compatible)

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
Apparently this was due to an incorrect master cylinder that had been fitted (not PSM compatible).
Original post Read captured discussion
996T brakes stuck!

Repair by them

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 got my golf vr 6 abs ecu repaired by them
Original post Read captured discussion
996T brakes stuck!

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.

incorrect master cylinder

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 · Original poster
Apparently this was due to an incorrect master cylinder that had been fitted (not PSM compatible).
Original post Read captured discussion
996T brakes stuck!

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.

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

Porsche Club GB: 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: 20261026T220748Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

PSM/ABS warning lights came this morning, and car now won't move as brakes are stuck on. Any suggestions please what can cause this? Car is being collected and will be delivered on Tuesday to see what's wrong.

POST 2Original post

I have heard of this happening before, and found this post on RennTech: http://www.renntech.org/forums/index.php/topic/30546-psm-locked-all-wheels-solid/page__view__findpost__p__161962 Unfortunately he didn't post a conclusion........... Early Boxsters had a problem with the servos filling with water, but I doubt that it is the problem. Maybe worth sending a PM to the poster if you are a member of RennTech.

POST 3 / ORIGINAL POSTEROriginal post

Apparently this was due to an incorrect master cylinder that had been fitted (not PSM compatible). No problem since correct one being fitted. Paul.

POST 4Original post

Did you get that from the original poster (leggedj)? There was a second poster (mattatk) who found it to be a master cylinder problem. Either way, I would think your problem must relate to the ABS pump or master cylinder. Hopefully you will know tomorrow.

POST 5 / ORIGINAL POSTEROriginal post

It was from the OP, and would prefer a problem with the master cylinder than ABS pump!

POST 6 / ORIGINAL POSTEROriginal post

Looks like it could be the hydraulic control pump. A trifle £1900+vat for the part alone:-(

POST 7Original post

I dont know if this is of any help but at those sort of prices i would at least give these guys a ring bba reman basically do all the trade repairs for all modern abs brake units and a whole lot more I got my golf vr 6 abs ecu repaired by them http://www.bba-reman.com/catalogue/Index.aspx?category=20 as I am sure you are aware Porsche do not manufacture the components themselves it is usually Bosch or ATE etc that is what this company does, they also have branches in Germany doing exactly the same thing

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