Dirty water retained in Disc's

4.2 V8 32v FSI - 444 bhp
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RossDagley
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Re: Dirty water retained in Disc's

Post by RossDagley » Sat Jul 18, 2015 6:29 pm

ImageUploadedByTapatalk1437240529.101669.jpg
Hate it hate it hate it!

Wash car, wash wheels. Dry car. Drive car, re-wash wheels, dry wheels. Grrr
Believe only the man who has nothing to gain from what he says.

2017 BMW M4 Competition Pack - Mineral Grey - 530ps by bootmod3, JCWeldfab exhaust.
Previously:
Renault Megane R26 - Liquid Yellow - 275ps.
2015 Audi Exclusive RS4 B8 - Merlin Purple - JCWF Exhaust
2009 Audi RS6 C6 - Phantom Black - 730ps MRC Tuned
2008 Audi RS4 B7 - Phantom Black - 449ps MRC Tuned
2002 Peugeot 106 Gti - Mauritius blue - 430ps Home built.

johnnydog
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Re: Dirty water retained in Disc's

Post by johnnydog » Sat Jul 18, 2015 10:03 pm

Is it coming from the vented area of the disc, or is actually coming off the back plate, 'cos there is a dirty water mark on the back plate? Maybe power washing is loosening brake dust that has accumulated on the back plate, and then rotational air movement when driven shortly after is causing the excess to spin onto the inside of the rim? Just a thought?

birdiemachine
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Re: Dirty water retained in Disc's

Post by birdiemachine » Sat Jul 18, 2015 11:32 pm

how about just drive it and stop worrying about brake dust

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RossDagley
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Re: Dirty water retained in Disc's

Post by RossDagley » Sun Jul 19, 2015 1:28 am

birdiemachine wrote:how about just drive it and stop worrying about brake dust ImageImageImageImage
Unfortunately I care about how it looks. Not to mention the long term damage brake dust does to wheels...
Believe only the man who has nothing to gain from what he says.

2017 BMW M4 Competition Pack - Mineral Grey - 530ps by bootmod3, JCWeldfab exhaust.
Previously:
Renault Megane R26 - Liquid Yellow - 275ps.
2015 Audi Exclusive RS4 B8 - Merlin Purple - JCWF Exhaust
2009 Audi RS6 C6 - Phantom Black - 730ps MRC Tuned
2008 Audi RS4 B7 - Phantom Black - 449ps MRC Tuned
2002 Peugeot 106 Gti - Mauritius blue - 430ps Home built.

johnnydog
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Re: Dirty water retained in Disc's

Post by johnnydog » Sun Jul 19, 2015 8:22 am

Sounds like another plus for ceramics in the steels v ceramics debate.......

kmpowell
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Re: Dirty water retained in Disc's

Post by kmpowell » Sun Jul 19, 2015 9:21 am

RossDagley wrote:
birdiemachine wrote:how about just drive it and stop worrying about brake dust ImageImageImageImage
Unfortunately I care about how it looks. Not to mention the long term damage brake dust does to wheels...
I can't say I get this problem, perhaps it's down to your washing style/procedure. Are you pressure washing or hosing? I pressure wash the retainers etc fully until the water running off them is clear. It takes a bit more time to get rid of all the dust/dirt and run clear, but perhaps thats the trick you're missing.
'15 B8 RS4 - SOLD

carsarecool
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Re: Dirty water retained in Disc's

Post by carsarecool » Sun Jul 19, 2015 9:31 am

RossDagley wrote:
birdiemachine wrote:how about just drive it and stop worrying about brake dust ImageImageImageImage
Unfortunately I care about how it looks. Not to mention the long term damage brake dust does to wheels...
You bought a car with steel brakes.....what did you expect?

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