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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHReplace brake pads and rotors together?
Leading reported evidence
Replace except they have an aluminum-zinc coating
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
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0
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1
Discussions
Read evidence and context
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Performed · outcome unconfirmed
For pure street use, these seem fine & look exactly like the originals I replaced, except they have an aluminum-zinc coating that is supposed to protect the hat & non-wear surfaces.
Leading evidence: 'Replace except they have an aluminum-zinc coating' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace don't even have' (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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Performed · outcome unconfirmed · Original poster
The rotors were replaced at 22K miles in April 2015.
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Performed · outcome unconfirmed
On the other hand, I have replaced rotors and pads at the same time but generally when I wanted to go w/a different type of rotor (ventilated).
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Suggestion
Beyond that, the pads are a breeze to change - don't even have to molest the calipers - super simple.
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Suggestion · Original poster
The Porsche tech today recommends replacing the pads and rotors at the same time to get more life out of the new pads.
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Performed · outcome unconfirmed
For pure street use, these seem fine & look exactly like the originals I replaced, except they have an aluminum-zinc coating that is supposed to protect the hat & non-wear surfaces.
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Suggestion
I run the pads till the grooving in the rotors gets too much ,, but its amazing how long brake rotors can last if you change the pads at about 75% wear.
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12 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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I have a 2003 Carrera with 33K miles. The rotors were replaced at 22K miles in April 2015. I bought the car in Nov 2018 with 28K miles. I did 3 track events this summer. Now at 33K miles. My front pads are at 20% and rear pads are at 50%. I know that I need new pads. The Porsche tech today recommends replacing the pads and rotors at the same time to get more life out of the new pads. Does the Rennlist community agree with this? I'd rather not have the expense of replacing the rotors if it isn't necessary. I plan to do about 3 track events per year in the future.
If your rotors are not out of spec (too thin) and not cracked, there is no good reason to waste them.
New pads will bed in just fine with your existing rotors - unless there's something wrong with 'em.
I would agree with the tech if he explained WHY the rotors were in need of replacing - but "while you're in there" is not adequate. Was any other information provided?
Even if you get 20% more life out of the new pads (not sure why you would, but calling Porsche techs out is above my pay grade), how many more sets of pads can you afford if you're not constantly swapping rotors?
Exactly! Beyond that, the pads are a breeze to change - don't even have to molest the calipers - super simple. It's hard to imagine (absent some extreme driving) that you'd need to change rotors due to wear alone.
I run the pads till the grooving in the rotors gets too much ,, but its amazing how long brake rotors can last if you change the pads at about 75% wear.
My Jeep Wrangler 94 has 250K miles ,, and the rotors on it now were put on at 75K..
On race cars I bed the pads on a set of rotors just for that purpose.
I also keep a set of used pads to bed the rotors with if they need replaced..
Not everyone will agree but its how I found I can get the best life out of race pads at the track.
Learned it from a Winston Cup Crew chief. YMMV (Literally
)
There's no reason for turning rotors; it's an outdated procedure. All that does is remove useful rotor material. If they are cracked, worn too thin, or vibrate, replace them. If none of the above, keep using them as-is.
Drilled rotors aren't conducive to being turned. Look at the chamher,
Most cutter tooling doesn't like a intermediate cut , these would work best ground, but even then,
Just buy some new ones.
For me it eliminates one variable in the repair. It doesn't eliminate the other Porsche variable, that being not a cheap car to run.
But man, these things stop when it works right.
For pure street use, these seem fine & look exactly like the originals I replaced, except they have an aluminum-zinc coating that is supposed to protect the hat & non-wear surfaces. I added some pre-scorched ceramic pads and more than satisfied with the results (emphasizing I'm street use only). No affiliation.
Perhaps but I turned the plain OEM rotors on my 335i when I installed Akebono ceramics on them around 5 years ago and they have served me well.
On the other hand, I have replaced rotors and pads at the same time but generally when I wanted to go w/a different type of rotor (ventilated). Of course, I wouldn't try to turn ventilated rotors.
