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Thread: Brake Disc Rust

  1. #1
    stoakseya4's Avatar
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    Brake Disc Rust

    I may have found some GMBH (drilled) discs, cheap, but they have some light surface rust.

    How do you remove rust from the discs without damaging them?

    Cheers awfully...


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  3. #2
    quattrojames's Avatar
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    Send them to me in the boot of your car, I will return them a week later fitted and all shiney. And probably glowing
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  4. #3
    stoakseya4's Avatar
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    1998 S4 Widebody Saloon Track Car
    2006 320d SE Touring - Ze Fuhrer's Wagon
    2001 B5 RS4 510bhp & 508ft lbs SOLD
    1.9TDI (130) Sport -Black-Revo - Mrs Stoakseya4's mota - SOLD

  5. #4
    Johnny Bravo's Avatar
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    Quote Originally Posted by quattrojames View Post
    Send them to me in the boot of your car, I will return them a week later fitted and all shiney. And probably glowing
    And thinner...

    stoakseya4 I don't think you should worry about the rust as long as it is only at the surface. It will come off after you break a few times.
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  6. #5
    AndymacA4's Avatar
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    Agreed, the surface rust is normal and will come off with a few brake applications. Look out for any pitting or deeper rust, this would be more of a problem. If it looks like brown dust on the surface your fine!
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  7. #6
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    If you really want to clean the rust before fitting them I think you can use a high granulation sand paper and gently rub it off. I do not advise on using any sort of chemicals, derusting sprays or such because they may leave a thin film on the surface that will affect breaking performances. You may end up in a ditch or rear-end someone.
    DSG | Vienna Leather | Bose Sound | MFSW | Interior Lights Pack | Light & Rain Sensors | Auto Dimming Mirror Mods: LED RNS-e | FL LED Tail Lights | Bi-Xenons | Illuminated Speaker Grilles | Tinted windows | Chrome Switches | Chrome Paddles&Commands | RS4 Start Button | Cruise Control | S3 Pedals | S3 Roof Spoiler | 18" BBS CH | H&R Spacers 10/15 mm | Bilstein B16 PSS10 | H&R 26/24 ARBs | TT Arms | S3 Front Brakes+DS2500+Tarox F2000 | HEL Brake Lines | VNT20 | EGR&Cooler Delete | Custom Remap

  8. #7
    quattrojames's Avatar
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    I would use a fine wet and dry paper with water, 800 or 1200 to clean the parts the brake pads don't touch
    Ingolstance Read about my A6 HERE.

  9. #8
    no_idea's Avatar
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    How about a green or burgundy Scotch Brite pad or even a saucepan scourer.
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