15 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH23 month old 996 and Corroded Brakes?
Leading reported evidence
Replace two sets of fronts in just over 18 months
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
I ended up replacing two sets of fronts in just over 18 months.
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
Check the minimum thickness is adhered to as this will cause loss of braking power as the disc has reduced dissipation properties and not designed to be used safely below the recommended thickness.
Leading evidence: 'Replace two sets of fronts in just over 18 months' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check minimum thickness is adhered' (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 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
Check the minimum thickness is adhered to as this will cause loss of braking power as the disc has reduced dissipation properties and not designed to be used safely below the recommended thickness.
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
Check the minimum thickness is adhered to as this will cause loss of braking power as the disc has reduced dissipation properties and not designed to be used safely below the recommended thickness.
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
A usefull tool is a electronic temperature gauge that can check the temperature of the discs through the wheel after a hard run, if the disc temperatures vary then time to investigate.Generally the less the car is used the more chance of corrosion has a chance to get hold.Pete, take a picture and post them here for an opinion.
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
Check the minimum thickness is adhered to as this will cause loss of braking power as the disc has reduced dissipation properties and not designed to be used safely below the recommended thickness.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Check minimum thickness is adhered
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
Check the minimum thickness is adhered to as this will cause loss of braking power as the disc has reduced dissipation properties and not designed to be used safely below the recommended thickness.
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
A usefull tool is a electronic temperature gauge that can check the temperature of the discs through the wheel after a hard run, if the disc temperatures vary then time to investigate.Generally the less the car is used the more chance of corrosion has a chance to get hold.Pete, take a picture and post them here for an opinion.
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
Check the minimum thickness is adhered to as this will cause loss of braking power as the disc has reduced dissipation properties and not designed to be used safely below the recommended thickness.
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
A usefull tool is a electronic temperature gauge that can check the temperature of the discs through the wheel after a hard run, if the disc temperatures vary then time to investigate.Generally the less the car is used the more chance of corrosion has a chance to get hold.Pete, take a picture and post them here for an opinion.
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
Check the minimum thickness is adhered to as this will cause loss of braking power as the disc has reduced dissipation properties and not designed to be used safely below the recommended thickness.
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.
15 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 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
I've just been given the good news from Porsche servicing about a number of items on my 24 month service which sum the total of £2k + VAT. Not happy.
One of the bigger items is that my front discs are reportedly corroded and need replacing. I find this rather hard to believe given that the car is only 23 months old and garaged every night and I rarely take it out in the rain. Isn't there some kind of warranty on corrosion?
What are my options? Should I be looking into skimming? Do I need a second opinion?
any advice much appreciated.
Migration info. Legacy thread was 34216
Peter
I would tell them to leave it. It's only rust.
Then take it to a Specialist and have them look at it.
Cheers Sean
Migration info. Legacy thread was 34217
I think that's a foolhardy reply! If the inner faces of the disks are pitted then they are an MOT failure and the car is not roadworthy! Generally skimming will not do the trick and new rotors (about £150 each fitted) are needed. Mine lasted 12 months and 3000 miles. You need to dry them off thoroughly after washing- a couple of really sharp pull-ups otherwise the next set will go the same way. I ended up replacing two sets of fronts in just over 18 months. Warranty = jack $hit as well.
PS after changing them and running them in you will notice the difference!!
Migration info. Legacy thread was 34218
You can't leave your car sitting around after washing it! Good advice from Peter B. I had no problems on my 2003 996 and my 997 is fine so far......however, my mate who bought a Boxster last year is not so fortunate!!
Migration info. Legacy thread was 34220
The discs on Porsches are especially prone to corrosion: rust resistance = les stopping power. Make sure the discs are dry/hot before garaging and give the car a decent run with some long, firm stops after washing (as above).
I too know from experience...
Migration info. Legacy thread was 34222
If you wash the car then garage it the discs will corrode that quickly
I've just done the front discs on a GT3- £400 a disc, £300 for pads, plus fitting & vat
depends on the mileage, but i've often had discs & pads on a 2 yearold 13,000 mile car
Nature of the beast I'm afraid
just be gratefull the cars not out of warranty and you've needed an RMS as well
Migration info. Legacy thread was 34223
Just had the same experience with rusty rear brakes "inner" faces on both - rust for half an inch round the outer edge of the disc - plus distortion causing extreme vibration at high speeds. The visible faces were fine.
Dealer said boxters need changing every 15km.
The car has done 43k miles of which I have done 23k - first time the disks have been touched.
Cost 1084 quid though at the Porsche dealer in Antibes. (who did a great job with only a few days wait for the parts which included the end of August)
Migration info. Legacy thread was 34225
Slight surface rusting is pretty normal on all cars and 'rust' will appear after a light shower if the wind is in the right direction to wet the disc.After a few hundred yards this will be wiped off. The thing to identify if corrosion has eaten into the surface of the disc and caused damage deeper that normal braking cannot clean off and therefore impairs the braking efficiency, possible cure is to have the discs lightly skimmed and deglaze pads and refit. Check the minimum thickness is adhered to as this will cause loss of braking power as the disc has reduced dissipation properties and not designed to be used safely below the recommended thickness. The other thing to watch for is the brake pad is operating correctly, the calipers have thrust pads either side of the pad these protect the softer material of the caliper and are made from stainless steel and screwed into the caliper. Careful maintenance is required to remove these and clear any build up of brake dust which we all know is very corrosive, if left the build up forces the stainless plate up and reduces the tolerances required for the pad to work freely, this then leads to the pads not getting discs cleaned or up to correct temperatures and surface corrosion builds up without you realising and the discs are scrap. Cure: have the wheels off every 6-7k miles and clean out the brake dust with a proprietory brake dust cleaner. A usefull tool is a electronic temperature gauge that can check the temperature of the discs through the wheel after a hard run, if the disc temperatures vary then time to investigate.Generally the less the car is used the more chance of corrosion has a chance to get hold.Pete, take a picture and post them here for an opinion.
Migration info. Legacy thread was 34239
more sports car porsche/ferrari/lambo/ect discs are ruined by washing the car and putting it away you should always do about 5 miles after washing the car
Migration info. Legacy thread was 34486
So what do you do after a drive on a rainy day?
You cant just go for another 5 miles on wet roads can you?
Doesn't it rain in Germany where they make these things?
Migration info. Legacy thread was 34498
you can always put the car away but DO NOT close the door for a few hours. With a through-draft the main wetness should dry off only to leave minor surface corrosion
Migration info. Legacy thread was 34505
Buy a dehumidifier for the garage and it will end all those rusty disc woes. Its a good idea to take the car for a run and use the the brakes after washing if its going to be stood a few days.
Discs have lasted a few years on my cars with that sort of care.
993tt
993C2
Migration info. Legacy thread was 34513
I employ a few little Japanese girls with lovely little fans with '911' written on them to
'gently'
dry the brakes - doesn't everyone?????
Migration info. Legacy thread was 34546
