7 month old GT4, needs new front discs and pads after 1K? - Page 5 - Boxster/Cayman - PistonHeads UK

Evening all Just putting this out there in case anyone else has had a similar experience Vehicle was parked outside in recent storm and following morning, noise from LHS of the vehicle and significant pulsing through the brake pedal. I assumed that potential debris/damage from storm and vehicle recovered on low loader to OPC. There was no flooding, just wind and heavy rain OPC diagnosis is that car needs new front discs and pads as vehicle has been parked outside and pads have effectively mated/damaged front discs due to moisture and corrosion-Not covered under Porsche warranty Car is used daily and does live outside at the moment (before anyone says… the garage is full of road bikes, which can’t live outside 😀), but is only 7 months old and has just passed 1K miles. No tracking or anything testing as still running-in I’m happy to pay for wear and tear etc, but doesn’t feel right that car needs to be locked up in a garage or the brakes will fail in such a short period of time if lives outside Never had this problem with the 55 or so other vehicles I’ve owned in the past! Any thoughts? Cheers

Did you buy it new? Not that it should matter. Daily use, I wouldn’t be accepting that

Assuming steels not PCCBs sounds like the car could well have been parked up with salt on the brakes. Continued wetting and drying from lack of use and standing outside it won't take long for salt to eat into the discs.

Sorry should have said on steels and yes, purchased new Cheers!

This appears to be a new phenomenon. Mine did it with 425 miles on the clock but luckily it was parked at the OPC at the time in their dealer stock. Basically according to them it had been valeted and then left wet for quite a while, like a good few days, when they came to move it low and behold the pads were stuck to the discs, when they broke away they left lots of pad residue on the discs and quite a big hole in the pads. I would have just taken it for a thorough blast to try to clean it off. However the dealer was having none of it. The pads were changed and the discs mechanically cleaned, (ie sandpapered ). I kept the old pads as they weren’t too bad and I thought they might be handy as spares. Yes I am a tightarse. I should have some pictures somewhere. Steel brakes incidentally not PCCBs. This is clearly a new thing because I am ancient and had literally hundreds of cars, it’s never ever happened on any of them.

JerseyRS said: Evening all Just putting this out there in case anyone else has had a similar experience Vehicle was parked outside in recent storm and following morning, noise from LHS of the vehicle and significant pulsing through the brake pedal. I assumed that potential debris/damage from storm and vehicle recovered on low loader to OPC. There was no flooding, just wind and heavy rain OPC diagnosis is that car needs new front discs and pads as vehicle has been parked outside and pads have effectively mated/damaged front discs due to moisture and corrosion-Not covered under Porsche warranty Car is used daily and does live outside at the moment (before anyone says… the garage is full of road bikes, which can’t live outside ??), but is only 7 months old and has just passed 1K miles. No tracking or anything testing as still running-in I’m happy to pay for wear and tear etc, but doesn’t feel right that car needs to be locked up in a garage or the brakes will fail in such a short period of time if lives outside Never had this problem with the 55 or so other vehicles I’ve owned in the past! Any thoughts? Cheers Sounds like an OPC leg lift. I'd send it to a specialist, corrosion can be cleaned off from the rotor and the pads cleaned up.

Yep there was a similar thread recently someone with a GT4 had the same brake issue. Nothing new and not a problem exclusive to the GT4 as any steel braked car will suffer the same fate under the same conditions. Washing a car wetting the brakes then garaging it for a couple of weeks will result in a similar problem with wet pads corroding the discs.

I always drive my car up and down my road when I've washed it to remove the horrible surface rust (my neighbours must think I'm barmy). I really do wish that the Porsche coated brakes were available for the 718 as I'd probably pay for that. As a side note, my wife's Tesla brake discs never rust after I wash the car so they must have some form of coating on them.

A Spyder owner had this recently , new car , couple of months old. After some "discussion " OPC replaced under warranty.

av185 said: Yep there was a similar thread recently someone with a GT4 had the same brake issue. Nothing new and not a problem exclusive to the GT4 as any steel braked car will suffer the same fate under the same conditions. Washing a car wetting the brakes then garaging it for a couple of weeks will result in a similar problem with wet pads corroding the discs. I fully agree with this. However the part of the OPs experience and mine, both new GT4s, that is different to the norm is the amount of pad material that is left on the discs. It’s is a hell of a lot! Now that is not normal. I have a few cars in the current fleet which sit outside and don’t get used for a few days. Two of them in particular sometimes let out an almighty crack sound as I start to move as the pads let go of the discs, ML420, and Renault Megane 275CupS being the worst offenders. However they don’t give any trouble and drive fine afterwards. This is deffo a new trait to me and probably down to pad material changes I would guess.

Thanks everyone for the speedy responses…. I should have ticked the box for the PCCB’s!

^^^^ largely a waste of money on the GT4 furthermore the huge cost largely not recouped on resale.

av185 said: ^^^^ largely a waste of money on the GT4 furthermore the huge cost largely not recouped on resale. In your opinion. Not everyone is obsessed with the resale value. There are numerous advantages of PCCB, most notably the reduction in unsprung mass.

scrounger73 said: I always drive my car up and down my road when I've washed it to remove the horrible surface rust (my neighbours must think I'm barmy). Yep, do the exact same but for more than rust. Always wash my cars with Bilt Hamber which removes the rust, drive to end of street and back with hard braking, park up and then wipe down the inside rims with a dry cloth to remove the liquid splashes from the braking. Dries pads, removes excess liquid and keeps rims clean. I know, OCD....

Sorry to read you have had this issue. Personally I'd push back but worst case and you end up picking up the bill, you could have the discs skimmed rather than replaced. That would save a big chunk. I have read that legislation has changed and the materials have had to change in brake pads. Perhaps this has made the situation worst. From your handle I presume we live in the same place and I've only seen one GT4 in the dealers showroom whilst I've been waiting for mine. Lovely spec!!

How can a car be used daily for 7 months and only have a 1000 miles on it? I'm guessing it's been stood a long time between uses, still a poor show really. Guessing at a quid a mile just in brakes. Can't you take the wheels off yourself and clean up the discs and pads, might not be perfect but it seems unlikely the discs will be actually warped.

Could salt water have accelerated the corrosion / sticking pads ?

I wouldn’t mind a quid a mile so much, but quote is 2K. Imminent retirement present to myself, so haven’t had a chance to stretch it’s legs yet….

JerseyRS said: I wouldn’t mind a quid a mile so much, but quote is 2K. Imminent retirement present to myself, so haven’t had a chance to stretch it’s legs yet…. Haha, they are having your pants down. It makes me laugh how much OPCs abuse their customers who seemingly keep coming back for more time and time again.

JerseyRS said: I wouldn’t mind a quid a mile so much, but quote is 2K. Imminent retirement present to myself, so haven’t had a chance to stretch it’s legs yet…. Absolutely no need for new discs that is dealer BS. Mine cleaned up very easily with a bit of sandpaper. There was a lot of pad material ripped out of the face of the pads so maybe a 10% reduction in effective pad area. On balance worth changing. My OPC just fitted new pads, cleaned up the discs and the car was good to go. I was allowed into the workshop to have a look at them doing the job and I kept the old pads so I know what was involved. Incidentally I would just not pay that much for the problem to potentially happed again. I would fit an aftermarket pad which I feel would be much less likely to suffer the problem. Its potentially becoming a bit of a joke now. Fit PCCB's and you have to change the pads before you track the car as the standard pads just melt all over the discs. Fit steels and you have the pads welded to the disc if you use the car in the rain. I assume this is Engineering progress at its finest

Will be cleaning mine tomorrow morning then after having to put it away like this, after lunchtime runout today!….

Sticky pads photograph. 425 mile old GT4.

TDT said: Will be cleaning mine tomorrow morning then after having to put it away like this, after lunchtime runout today!…. I think mines dirtier than yours

Oh my word. Haha

OPC tried this on me in 2017. A long story, in which ended in having them skimmed. Just about to renew this year.

I have a 3yr old GT4 on steels, it's done 12k miles and lives outside. I get the usual noisy braking for half a mile or so if I haven't used it for a bit and it's been wet but nothing major. I'm also not a polishing freak, my car is dirty most of the time. Something major must be wrong if you genuinely need new discs and pads - are you using a proper car shampoo? The OPC may be trying it on if you didn't drive it enough to clean the discs before sending it to them too.

Twinfan said: I have a 3yr old GT4 on steels, it's done 12k miles and lives outside. I get the usual noisy braking for half a mile or so if I haven't used it for a bit and it's been wet but nothing major. I'm also not a polishing freak, my car is dirty most of the time. Something major must be wrong if you genuinely need new discs and pads - are you using a proper car shampoo? The OPC may be trying it on if you didn't drive it enough to clean the discs before sending it to them too. Agree with you in general, similar experience here over the years. However this particular pick up is very different. The amount of detached pad material stuck to the discs has a profound impact to the driving experience it is not just a bit of noise and vibration. The brake pedal pulses like mad and the vibration is severe. I suspect that it would clean up with a spirited effort but it might take a while and need some big plums to get it done.

JerseyRS said: Sorry should have said on steels and yes, purchased new Cheers! Push back hard on Jacksons. They are getting a bit of a reputation. . .

If you have access to an angle grinder (they're about £20 from Screwfix) you can easily remove the pad material using an abrasive disc (as in, not a cutting or grinding disc but one made for removing paint and rust). I occasionally do it on my race car and have done it previously on my Cayman when I used it for track days (DS2500 pads melted onto the discs). It's not a difficult job and it'll save you about £1980! I think OPC pricing is hilarious (I thought Jaguar used to take the p1ss but OPC are on a whole new level)

Hi JerseyRS, are you in Jersey? Just wondering as my old Cayman seemed to suffer when i lived by the sea and corroded in all sorts of places.

bigmowley said: Sticky pads photograph. 425 mile old GT4. If you were being really tight you could face then off. Only looks to be a mm or two deep. In reality I certainly wouldn't be going back for more of the same. Those pads look tiny, rears?

bigmowley said: Agree with you in general, similar experience here over the years. However this particular pick up is very different. The amount of detached pad material stuck to the discs has a profound impact to the driving experience it is not just a bit of noise and vibration. The brake pedal pulses like mad and the vibration is severe. I suspect that it would clean up with a spirited effort but it might take a while and need some big plums to get it done. I'd be amazed if it didn't come off with 30 seconds of a wire wheel on an angle grinder.

Not just unique to steels,had all 4 wheels on my mclaren stuck solid and my gt3rs. I have a blower now if i am not going to use the car for a while.

Skimming? not done anymore? Doubt pitting is more than .2mm which is fine for a skim (obviously not CC Edited by Aventador 700 on Friday 3rd February 10:36

Yellow491 said: Not just unique to steels,had all 4 wheels on my mclaren stuck solid and my gt3rs. I have a blower now if i am not going to use the car for a while. I use my battery leaf blower its great for getting water out of bonnet vents and bumper crevices to, a truly great blow

Off topic kind of but jeez the dirty black cars look stunning!

Joscal said: Off topic kind of but jeez the dirty black cars look stunning! My thoughts exactly. Nice to see them being used

I learned this lesson many years ago with a 996 that had a fairly cosseted life - resolved with skimming and new pads and a better post-cleaning regime - decent run with airflow and heat through the brakes. It’s the back of the discs that suffer most. OPC technician told me they had more problems with low mileage, cleaned and garaged cars than higher mileage, left outside and dirty ones. Not an issue with the lovely pccbs - but still wise to dry them before garaging.

_Rodders_ said: I'd be amazed if it didn't come off with 30 seconds of a wire wheel on an angle grinder. These are from my car but from before I owned it. Basically it sat in the dealers for a while and when they came to prep it for me to collect having bought it second hand the pads were stuck to the discs. They fitted new pads FOC obvs and cleaned up the discs. I watched the lad do it in the workshop. It's been perfect since. Mind you it rarely stops moving OPC were spot on and the issue was dealt with quickly and professionally. I kept the old pads for spares.

cuprabob said: Joscal said: Off topic kind of but jeez the dirty black cars look stunning! My thoughts exactly. Nice to see them being used I love dirty Black RS Porsches. My RS WP was Black and I rarely washed it, only after returning home from a track day. My upcoming Black 4RS will be treated in the same way as I hate squeaky clean cars. Dirty cars especially Black ones always look like they're being properly used and always ready for action.

Taffy66 said: cuprabob said: Joscal said: Off topic kind of but jeez the dirty black cars look stunning! My thoughts exactly. Nice to see them being used I love dirty Black RS Porsches. My RS WP was Black and I rarely washed it, only after returning home from a track day. My upcoming Black 4RS will be treated in the same way as I hate squeaky clean cars. Dirty cars especially Black ones always look like they're being properly used and always ready for action. I vehemently disagree

Close the thread

It's not just Porsche's you know.

Two excellent examples of what well used Pork should like gentlemen. I salute you Many years ago after a high speed, sub-zero run to Brum and back (to N.Wales) four days before Christmas in 2006 ... And after a long day thrashing around N.Wales mid-winter Feb 2012 And an honourable mention to our own ATM on here for an excellent effort :

This thread has become downright filthy, I love it. Puts some Landrovers to shame.

Mine from 2 days ago

Impressive commitment from a 996 GT3 RS owner A solid 8.5/10 (points deducted because you can still see the GT3 RS script on the car's flanks)

Right, something new I've learned today then. I'm doing a good clean on mine tomorrow all being well with weather and things. So I'll make sure I take it around the block before I park it back up in the garage. Bit worrying to be honest!

scrounger73 said: Mine from 2 days ago 5/10. Winter report : Scrounger lacks focus, needs to apply himself, improve his concentration and try harder. 5.5/10

[Image-only or quote-only post; no author-written text.] https://www.pistonheads.com/inc/images/biglaugh.gif

Slippydiff said: Two excellent examples of what well used Pork should like gentlemen. I salute you Many years ago after a high speed, sub-zero run to Brum and back (to N.Wales) four days before Christmas in 2006 ... And after a long day thrashing around N.Wales mid-winter Feb 2012 And an honourable mention to our own ATM on here for an excellent effort : How can you lot treat your cars with such disrespect ,look at the state of them ffs.These cars should be coveted,put in carcoons and not used until a sunny day.It will totally devalue them and no one will ever want to buy it off you because of your disrespect.I see some have no ceramic brakes,even a plastic dash and no deviated stitching in orange,its a real shame. What would Doctor porsche think of you,and to put a dog in it,come on,really!

This thread has become absolute filth and we've not reached the watershed. Please keep it up

993rsr said: In your opinion. Not everyone is obsessed with the resale value. There are numerous advantages of PCCB, most notably the reduction in unsprung mass. No reduction in unstrung at all, we have tested many cars and brakes at you are talking Bo++ocks

That’s not true - I have picked up a ceramic hub assembly and a matching steel assembly and the weight difference is clearly noticeable.

993rsr said: av185 said: ^^^^ largely a waste of money on the GT4 furthermore the huge cost largely not recouped on resale. In your opinion. Not everyone is obsessed with the resale value. There are numerous advantages of PCCB, most notably the reduction in unsprung mass. I saw a Cayenne with PCCBs the other day (unless my eyes deceived me).

JerseyRS said: Car is used daily but is only 7 months old and has just passed 1K miles. That means it is only doing between 4 and 7 miles a day, if the journeys are to and from work then each trip is only 2 - 4 miles, the engine is never have been properly warm. I'm sorry to tell you but that sort of usage is the very worst thing that you could do to a new engine. The running in instructions on page 12 of the manual do say: Preferably take longer trips. If possible avoid frequent cold starts with short distances. Drive at low speeds when the engine is cold.

Agree - ‘low mileage’ always sounds attractive, but comes with its own issues. Guess you are in Jersey, so no easy solution - unless you move to the Isle of Man and go to/from work over the mountain Although, the whole of the UK is categorised as a high corrosion environment. WRT the brakes, this product will provide significant protection - just spray on and leave - no effect on frictional properties. https://bilthamber.com/product/atom-mac/ I also use it on rotor blades and exposed vulnerable components when left out overnight.

gordon1955 said: 993rsr said: In your opinion. Not everyone is obsessed with the resale value. There are numerous advantages of PCCB, most notably the reduction in unsprung mass. No reduction in unstrung at all, we have tested many cars and brakes at you are talking Bo++ocks Whats unstrung,and what testing have you done to determine your highly scientific summary of b ks

Yellow491 said: Whats unstrung,and what testing have you done to determine your highly scientific summary of b ks

Geneve said: Yellow491 said: Whats unstrung,and what testing have you done to determine your highly scientific summary of b ks Is that the late and great Vic Elford foot I clearly understand what unstrung is now;)

gordon1955 said: 993rsr said: In your opinion. Not everyone is obsessed with the resale value. There are numerous advantages of PCCB, most notably the reduction in unsprung mass. No reduction in unstrung at all, we have tested many cars and brakes at you are talking Bo++ocks WTF are you on about Gordie?

993rsr said: gordon1955 said: 993rsr said: In your opinion. Not everyone is obsessed with the resale value. There are numerous advantages of PCCB, most notably the reduction in unsprung mass. No reduction in unstrung at all, we have tested many cars and brakes at you are talking Bo++ocks WTF are you on about Gordie? Think he was on the sauce

This is not a new phenomenon, it happened in 2004 to my 6 week old Mitsu Evo VIII. I drove, gently with kids in the car, to Heathrow and parked up for a week. On return the brakes released with a bang and then vibrated badly on use. Two pads had broken off partly and were stuck to the discs. The Ralliart dealer made out I had done something, wouldn’t look at it for a week, then wouldn’t entertain skimming the discs and had to order pads which would take a further week. So your treatment isn’t new either! Off topic but I walked into the nearest Subaru dealer who had a lovely looking new 5 dr WRX in stock. He rang the Mitsu dealer in my presence to ask what he would give for the VIII. I clearly heard the reply that he would rather bite his own arm off than buy it back, eventually offering 60% of what I just paid for it.

Bringing this back up to the top, because I think there’s certainly an issue that needs to be addressed/resolved. My MY22 lives outside, and thanks to this thread I was pre-warned to the point I don’t leave the car straight after being washed, using a work-around I have found instead… which is to go outside every 4-6hrs after the wash, over a 24hr period, to release and reapply the parking brake, but obviously that’s not practical. If that’s not done then they begin to stick and I have to rock the car very gently on the throttle for them to release. I have no doubt that if I didn’t do anything they would bind to the discs and I’d suffer the same issues being reported here. I’ve tried taking the car around the block after washing, tried using a water blower/dryer, but the same phenomenon occurs. The other two cars (different brands) in the household get treated the same, but they don’t suffer at all. I’m convinced this a brake pad compound issue so I’m going to raise it with my dealer and see what Porsche have to say.

kmpowell said: Bringing this back up to the top, because I think there’s certainly an issue that needs to be addressed/resolved. My MY22 lives outside, and thanks to this thread I was pre-warned to the point I don’t leave the car straight after being washed, using a work-around I have found instead… which is to go outside every 4-6hrs after the wash, over a 24hr period, to release and reapply the parking brake, but obviously that’s not practical. If that’s not done then they begin to stick and I have to rock the car very gently on the throttle for them to release. I have no doubt that if I didn’t do anything they would bind to the discs and I’d suffer the same issues being reported here. I’ve tried taking the car around the block after washing, tried using a water blower/dryer, but the same phenomenon occurs. The other two cars (different brands) in the household get treated the same, but they don’t suffer at all. I’m convinced this a brake pad compound issue so I’m going to raise it with my dealer and see what Porsche have to say. I had 3 brakes that constantly locked up on my GT4 (bought new) I never used the handbrake when it was in the garage, and after 8 months they were very badly scored. The 4th brake NEVER locked up and was perfect, so ergo there was a manufacturing fault on the other 3. No joy from Porsche!

Hi everyone…Thanks for all of the responses, I’d forgotten I hadn’t followed up! Eventually, got the dealer to clean up the discs and just replace the front pads Have now learnt to just drive around the block using the brakes a lot after washing and that seems to do the trick so far…. The secret is to not wash it too often 😂👍

Mines not done it since the first time either but then it’s only been washed once since December and 4000 odd miles

Still chuckling at any car that does only 1k miles in 7 months !! Must be easier to walk, or get a bike......

kmpowell said: Bringing this back up to the top, because I think there’s certainly an issue that needs to be addressed/resolved. My MY22 lives outside, and thanks to this thread I was pre-warned to the point I don’t leave the car straight after being washed, using a work-around I have found instead… which is to go outside every 4-6hrs after the wash, over a 24hr period, to release and reapply the parking brake, but obviously that’s not practical. If that’s not done then they begin to stick and I have to rock the car very gently on the throttle for them to release. I have no doubt that if I didn’t do anything they would bind to the discs and I’d suffer the same issues being reported here. I’ve tried taking the car around the block after washing, tried using a water blower/dryer, but the same phenomenon occurs. The other two cars (different brands) in the household get treated the same, but they don’t suffer at all. I’m convinced this a brake pad compound issue so I’m going to raise it with my dealer and see what Porsche have to say. Parking brake doesn’t operate on the caliper on a 718, it has shoes on a drum inside the disc. But discs do corrode very quickly when left wet on these cars, I have the same issue on my 987 when it isn’t used enough.

There is definitely an issue. I picked up my new GT4 about 4 weeks ago and I had to take it back to the dealer the very next day. It's being sorted but it's frustrating

wow, those look really bad... asking, are you who experiencing such using some sort of wheels spray to wash of brake dust? maybe that spray also comes on the brake pads and 'eats' them up and so binding to the discs, like eating/cleaning the brake dust from the wheels... also, some brake installations are pushing the brake pads a bit to the discs in say rainy weather, to keep the brakes in top vorm when needed braking... maybe it binds them incl the water/spray (wheel cleaner stuf) to the discs...

I wonder if this stuff works after you've washed the car or put it in the final rinse? https://www.ebay.co.uk/itm/253238809645

You can use Atom-Mac or use Hydes Rust Stopper

bigmowley said: I fully agree with this. However the part of the OPs experience and mine, both new GT4s, that is different to the norm is the amount of pad material that is left on the discs. It’s is a hell of a lot! Now that is not normal. I have a few cars in the current fleet which sit outside and don’t get used for a few days. Two of them in particular sometimes let out an almighty crack sound as I start to move as the pads let go of the discs, ML420, and Renault Megane 275CupS being the worst offenders. However they don’t give any trouble and drive fine afterwards. This is deffo a new trait to me and probably down to pad material changes I would guess. I get this (reluctant breakaway of the pads from the discs ) when emerging from the garage after a wash (993). Never noticed it with any other car, but then I probably wash this more than all the previous ones... Looking to do a full replacement of discs and pads soon as I've been getting some vibration through the pedal (and the rears def need changing). I wonder if the brake shudder is related to the repeated uncomfortable garage exits?

scrounger73 said: You can use Atom-Mac or use Hydes Rust Stopper A brake disc is bare metal, so unless you liberally spray that all over the disc/pad area (on all 4 corners, on each side, i.e. a PITA) it's probably still going to rust. Even if it worked the first few stops when you do drive it might be interesting.

kmpowell said: Bringing this back up to the top, because I think there’s certainly an issue that needs to be addressed/resolved. My MY22 lives outside, and thanks to this thread I was pre-warned to the point I don’t leave the car straight after being washed, using a work-around I have found instead… which is to go outside every 4-6hrs after the wash, over a 24hr period, to release and reapply the parking brake, but obviously that’s not practical. If that’s not done then they begin to stick and I have to rock the car very gently on the throttle for them to release. I have no doubt that if I didn’t do anything they would bind to the discs and I’d suffer the same issues being reported here. I’ve tried taking the car around the block after washing, tried using a water blower/dryer, but the same phenomenon occurs. The other two cars (different brands) in the household get treated the same, but they don’t suffer at all. I’m convinced this a brake pad compound issue so I’m going to raise it with my dealer and see what Porsche have to say. Since posting the above I've performed tests to see if I can nail down a possible cause. On the 2x most recent washes, I've not used my regular wheel cleaner: https://amzn.to/3qQCyeJ .... and low & behold the sticking hasn't happened. So this appears to be the possible culprit. So in short I've stopped using it on the GT4, and I'll report back if I get any sticking again. Strange, because the cleaner works without issue on my other 2 cars.

kmpowell said: Since posting the above I've performed tests to see if I can nail down a possible cause. On the 2x most recent washes, I've not used my regular wheel cleaner: https://amzn.to/3qQCyeJ .... and low & behold the sticking hasn't happened. So this appears to be the possible culprit. So in short I've stopped using it on the GT4, and I'll report back if I get any sticking again. Strange, because the cleaner works without issue on my other 2 cars. I think part of the issue is BiltHamber not making it clear this is also a fallout remover which means it’ll react with a lot of the iron particles left on the discs naturally. That in itself shouldn’t be an issue to be fair but may be contributing to it. I’d normally only use fallout remover once in every 10 or so washes. Glad you e found a possible solution either way though!

MrChips said: kmpowell said: Since posting the above I've performed tests to see if I can nail down a possible cause. On the 2x most recent washes, I've not used my regular wheel cleaner: https://amzn.to/3qQCyeJ .... and low & behold the sticking hasn't happened. So this appears to be the possible culprit. So in short I've stopped using it on the GT4, and I'll report back if I get any sticking again. Strange, because the cleaner works without issue on my other 2 cars. I think part of the issue is BiltHamber not making it clear this is also a fallout remover which means it’ll react with a lot of the iron particles left on the discs naturally. That in itself shouldn’t be an issue to be fair but may be contributing to it. I’d normally only use fallout remover once in every 10 or so washes. Glad you e found a possible solution either way though! Never used wheel cleaner on my (new) 718 GT4, and still three the disk's were shot as I posted above, sold it after 10 month's, pi**ed off with the car!

Seems like a cure would be after market disks and Pagid pads. Alcon disks and Pagid pads lasted for 30,000 miles on the front of my GT3RS.

The dirty white/red GT3RS a few posts ago was mine parked at a countryside hotel in france. Thanks for the picture!

This is where it was taken!