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Porsche Club GB

Brake Disc Corrosion

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

Discussion summary

YOUR RESEARCHBrake Disc Corrosion

Leading reported evidence

Replace metal

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

Porsche may tell you they have changed the metal to address things like squeal but I don't believe it.

Brake Disc Corrosion
Frequently discussed work

Replace every 6 months

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

But I would be gutted if they need replacing every 6 months.

Brake Disc Corrosion
Read full discussion summary

Leading evidence: 'Replace metal' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace every 6 months' (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 · 8 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Replace soon, never been

Performed · outcome unconfirmed

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 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

Front discs will need replaced soon, never been that happy about the brakes.

Brake Disc Corrosion

Replace every 6 months

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

But I would be gutted if they need replacing every 6 months.

Brake Disc Corrosion

Replace then the labour

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

I thought all parts are covered by a 2 year warranty and if they need replacing then the labour to do this would be as well, unless they have not been treated as what they were designed for.

Brake Disc Corrosion

Replace while the fronts are fine

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

My C4 has done the same, the rears need replacing while the fronts are fine.

Brake Disc Corrosion
Frequently discussed actions (7)

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

Replace every 6 months

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

But I would be gutted if they need replacing every 6 months.

Brake Disc Corrosion

Replace metal

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

Porsche may tell you they have changed the metal to address things like squeal but I don't believe it.

Brake Disc Corrosion

Replace soon, never been

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

Front discs will need replaced soon, never been that happy about the brakes.

Brake Disc Corrosion

Replace then the labour

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

I thought all parts are covered by a 2 year warranty and if they need replacing then the labour to do this would be as well, unless they have not been treated as what they were designed for.

Brake Disc Corrosion

Replace while the fronts are fine

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

My C4 has done the same, the rears need replacing while the fronts are fine.

Brake Disc Corrosion

Use different pads

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

I've never heard of brake squeal being an issue on 944, 993's or any pre-996/Boxter model you care to mention - and even then you can usually solve it with a smear of Copperslip or using different pads.

Brake Disc Corrosion

Use garaged etc

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

Did Keith Moon have this sort of problem parking in swimming pools?Usual likely reason, lack of use, garaged etc.

Brake Disc Corrosion
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.

8 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: 20261026T183130Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Bit of an old chestnut this - had new rear discs fitted by OPC in November and during a quick pre warranty renewal inspection this weekend was advised that they had corroded on inside, but could probably be recovered by skimming! Did Keith Moon have this sort of problem parking in swimming pools?Usual likely reason, lack of use, garaged etc. I am very careful about drying it off before garaging, garage is a bit damp in the winter though , I leave a dehumidifier running . This seems a bit extreme though - skimming after 6 months? Trusty 944 used to be parked up for months on end and was on same discs after 7 years of ownership - same garage. Front discs will need replaced soon, never been that happy about the brakes. Thoughts/advice appreciated - I know they don't make them like they used to but..... Hugh

POST 2Original post

This is such a common complaint with most modern cars not just Porsche. In this case though it does seem strange that the problem as resurfaced so soon. (sorry, couldn't resist the pun)[ ] Maybe you should check that the calipers are working correctly and applying sufficient force to the pads on both sides of the discs. The rears do tend to get an easy life with most braking effort going to the front wheels.

POST 3Original post

There is the same thread over on the Boxter forum at the moment. I'm convinced that Porsche have cheapened the disks over the years. Porsche may tell you they have changed the metal to address things like squeal but I don't believe it. I've never heard of brake squeal being an issue on 944, 993's or any pre-996/Boxter model you care to mention - and even then you can usually solve it with a smear of Copperslip or using different pads. Porsche are simply are using a cheaper metal in the disc manufacture so I don't think there is much you can do about it. The aftermarket discs are not much better and will probably suffer more from warping than OEM disks. I wonder if you can get 993 discs to fit a 996??

POST 4Original post

Hugh If you have only had them for 6 months then they must be covered under warrany? I know this is not the point but at least you will not have to pay for new ones. I had to have mine replaced and now drive 2-3 miles before putting it away in case the same problem comes back, i must say it is a bit of a hassel Phil

POST 5 / ORIGINAL POSTEROriginal post

Phil Good point - will have a go at this. Is any work/parts covered by a one year warranty? Geoff - thanks - had calipers freed up approx one year ago. I think its time for front discs sooner rather than later and get rears sorted out. Hugh

POST 6Original post

I doubt very much if this is covered under warranty.

POST 7Original post

New disks are only 60 quid each, so not to much of a financial drama to replace. But I would be gutted if they need replacing every 6 months. My C4 has done the same, the rears need replacing while the fronts are fine. Mav

POST 8Original post

Hugh I thought all parts are covered by a 2 year warranty and if they need replacing then the labour to do this would be as well, unless they have not been treated as what they were designed for. I may be wrong? Phil

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