12 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHRotors - Hairline Cracks
Leading reported evidence
Replace rear rotors recently
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.
Leading evidence: 'Replace rear rotors recently' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Recommend by porsche' (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.
Suggestion
I've run my rotors on the track much longer than recommended by Porsche...
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
Lastly, see the Porsche recommended guideline below - which shows that cracks are OK.
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
Also, you don't need to change the rotors when you change pads either.
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
Also, you don't need to change the rotors when you change pads either.
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.
12 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 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: 20261027T070717Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
If the brakes need to be changed, the rotors should be as well if they have hairline cracks and/or they do not meet the required thickness of the rotor itself. Even little cracks are of concern.
No offense, but Stout is way off. Cracks are a natural part of rotors. And hairline cracks are fine, especially little ones. Also, you don't need to change the rotors when you change pads either.
For example, the rotors below are still very usable.
Lastly, see the Porsche recommended guideline below - which shows that cracks are OK. I've run my rotors on the track much longer than recommended by Porsche...
-td
I just had my front brakes done I had to pay my Indy to get the work done this included new rotors, pads, and sensors. I was told they should last 35-40k miles if you cruise around town. If driving hard might want to upgrade.
If it is highway miles the rotors may last 100k miles. track miles, depending on track, car weight and how aggressive the pads are, might be only 2-4k miles.
If the cracks extend to the edge or link up across three or four holes pieces can break out. Then when you step on the brakes the rotor can act like a wood plane on the pads. That significantly shortens pad life, also producing some very noticeable brake pulsing, tire hopping and flat spotting.
While you may be using those rotors near as I can tell based on what you posted Porsche doesn't consider them to be in servicable condition.
The cracks are quite long and many holes have more than one crack radiating from it.
Sincerely,
Macster.
+1.... My OEM (Zimmerman cross-drilled) front rotors last a full year and that's racing twice a month on Pagid yellows. I finally changed my rear rotors recently. They went almost 2 years and still weren't cracked to the edge just getting thin....
You have not been here long, but as my signature indicates I also had a standard 996 C2. Besides, I'm not sure how a GT3 affects rotor wear. The guideline is the same. Oh, I should add that (IIRC) the rear brakes on the GT3 are the same as the front on the C2.
-td
This is a source reference. Confirm exact model applicability in the original material.
