rusty brake discs

[byron]

hi there can any one tell me why the discs on my boxster keep rusting when its been raining or when i wash my car i always take it round the block to dry the discs of but the next morning thay are red rusty so when i take the car out the noise from the brakes drives me mad is any one having the same problem thanks

 

[garyw]

[link=http://wiki.answers.com/Q/What_is_rust_and_how_does_it_occur]http://wiki.answers.com/Q/What_is_rust_and_how_does_it_occur[/link] [] The whole Porsche range suffers from it.[] It may have something to do with possibly a higher Iron content or something within the discs..[&:] I see your doing the right thing though to try and limit the build up by driving the car after cleaning etc... garyw

 

[Geoff_Fields]

It may have something to do with possibly a higher Iron content or something within the discs

It's the lack of chromium in modern discs that's the problem.

 

[oliver]

Water holds in the holes then trickles down the back of the discs. It takes a decent run to get heat into the discs to remove this. It tends to affect cars that aren't used much, especially if they are cleaned then put away. Inside rears are the most vulnerable Spec the lovely ceramics next time []

 

[kenparker]

My car sits in the garage for weeks on end. I always worried about it causing a long term problem, but it never has. Once I run up the road and back it's all gone. I remember the first time I used the brakes after long term store you could hear the brakes make a noise. I took a look and the disc's all look new again but you can see the rusty dust as it's been taken off by the pads. I guess it's just one of those things.

 

[ianmac]

mine does the same, its not a problem, dont worry ..........

 

[T200]

It is a problem not just with Porsche, most if not all cars with disc brakes will show a slight film of rust if wet and allowed to stand. It's called oxidisation you only need to look along the line of cars sitting out on car lots and you will see them all nice and red []

 

[Harrington]

I've just had to have all my discs and pads replaced as they had excessive corrosion on the discs, especially the inside edges which are difficult to inspect other than crawling underneath or on a lift. I was told my the dealer that the corrosion was normal due to the fact that a high proportion of the disc was iron. Asbestos used to be used but this was removed for obvious reasons. I was also told that washing my wheels and leaving the water to sit in the discs hadn't helped so I clean them very carefully now and just use damps clothes rather than a wheel brush. I've only had my Boxster for a year so wasn't too happy being presented with a bill for over a grand for just the brakes! Never had to do that before with any of my other cars (non Porsches) so perhaps they have a higher iron content than other manufacturers. Just waiting to see how long these last now that I'm being more careful what I'm doing! Who'd have thought that cleaning your car was a bad thing! Ro

 

[ChrisW]

The rules .... 1. Wash it before you go out, not afterwards ... 2. Make those brakes work for their living ... or 3. Choose PCCB's .... yes they are fab for all but the most extreme track work ...

 

[byron]

thanks for all your replies it looks like i am going to have to put up with its a good job i dident go and have all new discs and pads fitted

 

[kitchens]

How many times have we heard this story ...your brakes are corroded sir we advise you replace them now!! thank you will get them attended to but not today and not at a grand thank you ...replaced my rears for £300 using porsche genuine parts from the opc inc fitting Most owners complain about the brakes and rust nothing new

 

[tobesetc]

If the brakes are "50% worn" then there's another 50% of life left in them, or maybe 30-40, but you get the idea.