Planet-9

Rotor Replacement Question

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YOUR RESEARCHRotor Replacement Question

Leading reported evidence

Replace pads

Suggestion or failed attempt

No successful repair reported for this finding.

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Unsuccessful attempts: 1
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Suggestion
My brake pad sensor came on indicating that I need to replace the pads.
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Rotor Replacement Question

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Leading evidence: 'Replace pads' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace pads' (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.

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Replace sensors at the same time i

Suggestion or failed attempt

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Reported fixes: 0
Unsuccessful attempts: 1
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Suggestion
Also, is it necessary to replace the sensors at the same time I replace the pads?
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Rotor Replacement Question

Use minimum thickness method

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion
I'll be using the minimum thickness method.
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Rotor Replacement Question

Frequently discussed actions (3)

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Replace pads

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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 brake pad sensor came on indicating that I need to replace the pads.
Original post Read captured discussion
Rotor Replacement Question

Replace sensors at the same time i

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
Also, is it necessary to replace the sensors at the same time I replace the pads?
Original post Read captured discussion
Rotor Replacement Question

Use minimum thickness method

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'll be using the minimum thickness method.
Original post Read captured discussion
Rotor Replacement Question

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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.

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

Planet-9: 1 discussions

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Generation: 20261027T000231Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

I'm new to this forum, and I haven't been able to find in looking through the forums an answer to my question so I'm hoping you guys can help. I have a 2007 Base model Cayman with 24k miles on it, and 2 track days. My brake pad sensor came on indicating that I need to replace the pads. I'm uncertain if the rotors are in bad shape and in need of replacing or not. Does anyone know what the minimum thickness is for them, from what I understand its supposed to be stamped on the rotor itself, but I cannot locate it. Also, is it necessary to replace the sensors at the same time I replace the pads?

POST 2Original post

Here is the info for minimum thickness; courtesy of webbie I've also heard members here say if there are not little cracks in between the holes in the rotors, they have life left. I'll be using the minimum thickness method. As for the sensors, I believe when the light goes on, they are toast and need to be replaced. Check out Suncoast for replacement parts.

POST 3Original post

Rotor thickness is 28mm front/24mm rear. The specs allow for 2mm of wear before replacement is necessary. You should also look to see if there are cracks forming around the cross-drilled holes - a few small cracks around the holes are ok, but if there are any cracks that connect the holes, the rotors are finished. The new thickness of the rotors should be stamped on them, not the minimum thickness. You can also measure the wear on a rotor by measuring the "lip" that's left on the outside circumference from the wear from the pads. If the senors have come on, then you need new ones - the way they work is they come into contact with the rotor, so if that happens, they're finished and you need new ones. brad

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