Binding brakes?
- Thread starter mikfinch
- Start date
I have exactly the same problem with my 987S. My brakes were jammed solid this weekend, after garaging the car for the week. I try and dry them before storing the car for any length of time by hard braking to heat up the discs etc, but still noticed quite a bit of rust migrating around the holes on the ventilated discs. It took quite a bit of effort to break contact between pad and disc. Even this morning, I noticed the rear brakes appeared to by binding to the rear discs and again took a bit of force to release. I did wondered if it was due to the handbrake being applied overnight Anyhow, would be good to hear thoughts on this and whether anything needs adjusting by my OPC ?
Jon
Jon
It's a common characteristic with Boxsters and 996/997s, particularly in winter.
However, it is always best if the brakes are hot and dry when the car is parked as the discs are prone to corrosion on the inside. There should be something in the handbook about drying the discs after cleaning.
However, it is always best if the brakes are hot and dry when the car is parked as the discs are prone to corrosion on the inside. There should be something in the handbook about drying the discs after cleaning.
Hmmm, not sure this is entirely down to garaging when wet. I think there is another factor involved as well.
I say this because it has never happened to me, even when garaged wet and left for days................until last week. Now I have exactly this problem after leaving the car for 24 hours, even when garaged dry. Bit of a bang as the front brakes release themselves, followed by the sound of binding for the first hundred yards. Then all is well again.
I say this because it has never happened to me, even when garaged wet and left for days................until last week. Now I have exactly this problem after leaving the car for 24 hours, even when garaged dry. Bit of a bang as the front brakes release themselves, followed by the sound of binding for the first hundred yards. Then all is well again.
carrera4boy
Ex Club Member
Just happened to me. Left the 996 at the airport for 6 days, started her up, handbrake off and BANG. A real wrenching sound. Brakes were really binded to the disc and then proceeded to make a scraping sound until i was on the motorway. I then applied the brakes for a a few seconds and the top layer of rust/water and brake dust was cleared.
I don't think this is a major problem though.
Si
I don't think this is a major problem though.
Si
John Ware
New member
Part of the problem comes from asbestos no longer being permitted in brake pads. This had the benefit of making the pads last longer. However, they were also significantly harder which meant the discs used to have chromium added so they'd last. The chromium also prevented rusting. Unfortunately, now asbestos has been banned, they've had to take the chromium out of the discs so they won't wreck the pads. Hence, they rust. Does anyone know of any alternatives other than ceramics....?
Guest
New member
In the winter, especially when it is damp, then I have it after 1 day, and after leaving for a weekend, they stick quite a lot.
Normally at the airport they are OK, not sure why it is not so bad - maybe just lucky.
In the summer it can also happen if there is a thunderstorm and water splashes onto the discs.
As long as you drive it regularly, then it is not really a problem. A couple of good hard brakes from speed will clean them off.
The only way to stop it would be to coat them with something, e.g. WD40 or oil, which might be OK if you are laying the car up to the winter, but when you come to use it again you will have no braking at all to start with. Not sure how you would clean them up again.
I just take it as a sign that I am supposed to use it every day.
Normally at the airport they are OK, not sure why it is not so bad - maybe just lucky.
In the summer it can also happen if there is a thunderstorm and water splashes onto the discs.
As long as you drive it regularly, then it is not really a problem. A couple of good hard brakes from speed will clean them off.
The only way to stop it would be to coat them with something, e.g. WD40 or oil, which might be OK if you are laying the car up to the winter, but when you come to use it again you will have no braking at all to start with. Not sure how you would clean them up again.
I just take it as a sign that I am supposed to use it every day.
Carcoon (the, um, Carcoon people...[
]) do a very useful Aerosol Spray designed for use as Stuart suggests. It is designed for when laying up a car (for winter for example), and you spray on the discs to stop corrosion.
It does NOT make them slippery as WD40 would !
A bit expensive if you use every day (it is £5 a can) but I have used it if washing the car and I will not be able to take for a dry after. 38K miles on the original discs so far - including a few trackdays...[]
]) do a very useful Aerosol Spray designed for use as Stuart suggests. It is designed for when laying up a car (for winter for example), and you spray on the discs to stop corrosion.It does NOT make them slippery as WD40 would !
A bit expensive if you use every day (it is £5 a can) but I have used it if washing the car and I will not be able to take for a dry after. 38K miles on the original discs so far - including a few trackdays...[
]Here's a curious thing. My brakes always rusted up after a few weeks garaged during the winter, requiring a bootful of throttle to release, with accompanying big bang. After having them skimmed, new pads etc this no longer happens. The discs stay shiny and free.
How come?
JohnC
993turbo
How come?
JohnC
993turbo
This is probably because the car has been parked after a longish drive when the brakes are hot and dry, then left in a well ventilated area.
The worst thing anyone can do is to wash the car and then garage it. Water sits in the holes in the discs and dribbles down the back creating the perfect environment for rust. Eventually the pads won't remove this and the discs will need to be skimmed or replaced.
Guest
New member
When I park in the morning at work they are hot, but sometimes they are sticking when I leave to go home.
Also when I drive home they are hot, but yet are also sticking by the following morning.
In both cases they are warm and dry when I stop, and in both cases the car is outside.
It depends on the weather conditions I think - how humid it is and whether it gets cold enough for the water in the air to condense on the discs. Why the airport carpark is better, I'm not sure. Possibly the area is slightly warmer and less prone to mist/fog, but more likely I have just been a bit more lucky with the weather.
Also when I drive home they are hot, but yet are also sticking by the following morning.
In both cases they are warm and dry when I stop, and in both cases the car is outside.
It depends on the weather conditions I think - how humid it is and whether it gets cold enough for the water in the air to condense on the discs. Why the airport carpark is better, I'm not sure. Possibly the area is slightly warmer and less prone to mist/fog, but more likely I have just been a bit more lucky with the weather.
hothatch2002
New member
I will tell why it happens to cars that have been garaged, even when the brakes are hot when you store it.
We have recently had some very changable temperatures - very cold and then unusually warm, and so on. What happens during a prolonged cold spell is a drop in temperature of the garage and the car - which can take some time. Then the temperature outside increases again, but your garage and car are now several degrees below the current outside temperature and the result is water condensating on the cold surfaces of your car and garage. The only way to stop this is to have ( as I do ) an integral garage to your house, so the temperature inside the garage is always warmer than outside. I store my car for most of the winter and never have any problems.
If you store your car outdoors, then it will possibly happen every time is rains. I'm afraid that Porsches just don't like being left out for a period of time.
We have recently had some very changable temperatures - very cold and then unusually warm, and so on. What happens during a prolonged cold spell is a drop in temperature of the garage and the car - which can take some time. Then the temperature outside increases again, but your garage and car are now several degrees below the current outside temperature and the result is water condensating on the cold surfaces of your car and garage. The only way to stop this is to have ( as I do ) an integral garage to your house, so the temperature inside the garage is always warmer than outside. I store my car for most of the winter and never have any problems.
If you store your car outdoors, then it will possibly happen every time is rains. I'm afraid that Porsches just don't like being left out for a period of time.
Michael996
New member
I am having the same problem with my 996 even when parked in a heated garage, what I do find odd is my Jag and my Range Rover do NOT have this problem.
I do worry what stresses it puts on the drive train of my car but what can we do? is it possible the calipers are not returning home fully when we all park up? just a vague thought.[8|]
I do worry what stresses it puts on the drive train of my car but what can we do? is it possible the calipers are not returning home fully when we all park up? just a vague thought.[8|]
dereksharpuk
New member
I have this problem on both my Caymans and now on the 997 Gen 2. I have no problem with the Mini Cooper driven in exactly the same way, eventhough I dry the Porsche before I put it away and don't bother with the Mini Cooper. Given the significant problems I have been having with brake squeal (see 997 Forum), I am less than impressed with Porsche brakes.
dereksharpuk
New member
Given that other cars do not do this, is this fault (for that is what it is) acceptable? It certainly brings revenue to Porsche.
Michael996
New member
Has anyone asked there OPC to comment on this problem which is clearly widespread on Porsche but not other makes that many of us own and use in the same way?
Hi I have the same problem on my Aston Vanquish she is 2 years old and has done it from new
I have tried everything to stop it I think it has something to do with the size of the pad and the fact there drilled
My Jag has EBC grooved and spotted she is parked up outside and never has a problem
[8|]
I have tried everything to stop it I think it has something to do with the size of the pad and the fact there drilled
My Jag has EBC grooved and spotted she is parked up outside and never has a problem
[8|]
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