DAFUQ is growing on my discs?!

N

ncrossy1980

Active member
 Newcastle Upon Tyne
This was my disc 2 weeks ago:


This is the same disc, today:


All four of them look like they've just p*ssed themselves. Being a newbie to the enthusiast arena, I can't say I've ever really studied my discs but this doesn't look right! My 320d has discs all round and doesn't look like it's been shot blasted with lung butter, does this surface crap just come off naturally? Is there a solution to preventing it?
 
Well there's a good excuse to take my 'weekend/summer car' out more often! :thumbsup:
I've also dropped a clanger with my 320d, I had the wheels off the other day and whilst I was at it I used a coarse drill bit piece to blast all the rust and much off the hub cover things... they're now beginning to rust as I guess I've exposed the metal and treated it with nowt... wups
 
stick it in the garage if you can, i see you have one.

Otherwise thats normal rotor oxidisation tbh, cars looking REALLY clean btw. Your giving it the love it deserves after all, you've got an appreciating car it seems.... Enjoy enjoy and enjoy.
 
It all depends on the make up of the discs. Many years ago it was normal to use cast Iron discs, they are in fact a lot better in many ways to steel but they rust very quickly so look unsightly and if not used regularly become unusable due to the heavy rust coating.
 
Thanks man :thumbsup: unfortunately the house in a rental, I'm self employed and need a year or so more of accounts before I can mortgage so the garage is packed full of the landlords crap. I'm in the market for a decent full cover until I can garage it. Which I need before the end of march as it's in for a 7 day detailing makeover, to get rid of, amongst many other things, that shady patch you can see at the corner of the arch.
 
ncrossy1980 said:
Thanks man :thumbsup: unfortunately the house in a rental, I'm self employed and need a year or so more of accounts before I can mortgage so the garage is packed full of the landlords crap. I'm in the market for a decent full cover until I can garage it. Which I need before the end of march as it's in for a 7 day detailing makeover, to get rid of, amongst many other things, that shady patch you can see at the corner of the arch.
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id be asking the landlord to remove all his s**t, the garage is space in a rented house that your paying for and unable to use unless you have a decreased rental due to this...
 
The issue is caused by the high cast iron percentage used in the manufacturing process, it gives a higher friction coefficient but a higher degree of surface rust.
Because motorbike brakes are more exposed rust is more unsightly & most discs have a higher proportion of stainless to combat the corrosion.
It shouldn't matter if your car is used regularly as it just sweeps off with a few brake applications, it only becomes more of a problem if it's left when it can cause deeper pitting.
Regards
 
Beedub said:
ncrossy1980 said:
Thanks man :thumbsup: unfortunately the house in a rental, I'm self employed and need a year or so more of accounts before I can mortgage so the garage is packed full of the landlords crap. I'm in the market for a decent full cover until I can garage it. Which I need before the end of march as it's in for a 7 day detailing makeover, to get rid of, amongst many other things, that shady patch you can see at the corner of the arch.
Click to expand...


id be asking the landlord to remove all his s**t, the garage is space in a rented house that your paying for and unable to use unless you have a decreased rental due to this...
Click to expand...
Yaha it's kinda my fault though, we rented this place fully furnished and his sofas where ugly like Dot Cotton... so we bought our own sofa suite and chucked his in the garage. Then I later decided to buy a second car. So it's my own fault really, we'll be out of here in October so as the car has likely been stored outside for 9 years I don't suppose it'll do any harm leaving it a few more months...

I assume a full cover would be almost as effective as garaging it to prevent this kind of thing from happening?
 
Smartbear said:
I would get a breathable cover or you could find you have damp issues.
Regards
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Do these covers sufficiently repel water? I've taken a look around and there seems to be a whole range of different types. I just want one that won't chafe the paintwork, won't let the car get wet, and isn't a chew on to take on and off.
 
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