1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Tarnishing, rusting brake discs/rotors.

Nick Moorhouse May 30, 2019

  1. Nick Moorhouse

    Nick Moorhouse Lemski

    51
    50
    18
    So I've noticed on all the A3's I've looked at that they all suffer from the tarnished brake discs....Nice shiny calipers but rusty discs around the hub. Seems a shame that such quality cars suffer from something like this.

    I've been perusing the world wine web and found some EBC discs/rotors that are direct replacements for the OEM versions and are Zinc coated so shouldn't tarnish. I refuse to spend the best part of £300-£400 on new discs from Audi that will just tarnish over time.

    Anyone else replaced the discs for aftermarket versions? Or are any of you considering it?
     
  2. Avatar

    Google AdSense Advertisement


  3. AllanG

    AllanG Q5 TFSI

    586
    419
    63
    Unfortunately, this is a problem with a lot of Audi discs, however, a lot of owners have just cleaned the rust off and painted the hub with Hammerite, or similar, which is a LOT cheaper than replacing the discs.
     
    Nick Moorhouse likes this.
  4. Nick Moorhouse

    Nick Moorhouse Lemski

    51
    50
    18
    That's a good point. However they'll need replacing anyway before the next MOT due to excess wear.
     
  5. Retroman

    Retroman Audi A3 2010 Sportback 2.0 TDI 170 (CBBB engine)

    1,101
    361
    83
    If the discs are otherwise in good condition I would just paint the hubs as stated above. Two coats of Hammerite will last for ages. The coatings (Geomet) put on most discs will wear off eventually - particularly with certain brake dust cleaning solutions. I fitted a set of Pagid discs to my car and they started to rust slightly after two years.

    http://www.nofmetalcoatings.com/corporate/en/home.xhtm
     
    Nick Moorhouse likes this.
  6. AllanG

    AllanG Q5 TFSI

    586
    419
    63
    Aah, if the discs will require renewing before your next MOT, then it makes sense to change them for better quality ones.
     
    Nick Moorhouse likes this.
  7. Retroman

    Retroman Audi A3 2010 Sportback 2.0 TDI 170 (CBBB engine)

    1,101
    361
    83
    The coating on Brembo disc hubs seems tough and long lasting but it is a dark gun metal grey and not silver
     
    Nick Moorhouse likes this.
  8. Nick Moorhouse

    Nick Moorhouse Lemski

    51
    50
    18
    It is Daytona Grey with the 19" gunmetal & polished alloys so they would look fine I think!?
     
  9. Ron240

    Ron240 Breaking the stereotype Team Ara Blue Gold Supporter S3 Saloon Black Edition

    828
    1,001
    93
    Jimbob76 and Nick Moorhouse like this.
  10. AlS3BE

    AlS3BE Well-Known Member

    2,265
    1,220
    113
    No coating is gonna last on brake discs. It’s a bare steel disc that’s heated hundreds of degrees and cooled with potential water and salt hitting it.
    I find the Audi factory discs lasts about a year and look rusty. The rears are normally worse than the fronts. Maybe front gets hotter. Mine is 9 months or so old and the rear hubs look like ****.
    In the past I’ve used trw discs and the coating on the hub seems to last years. Quality is good and they are cheap. Used with their cotec pads there’s very little visible brake dust on the wheels.
     
    Nick Moorhouse likes this.
  11. Ron240

    Ron240 Breaking the stereotype Team Ara Blue Gold Supporter S3 Saloon Black Edition

    828
    1,001
    93
    My hubs were starting to show signs of rust the day I picked my car up! :openmouth: It was just registered that morning but had been in stock for almost 3 months.
    Exactly 1 year later all 4 of my hubs are very rusty and unsightly now. :angry:
     
    Nick Moorhouse likes this.
  12. Avatar

    Google AdSense Advertisement


  13. AlS3BE

    AlS3BE Well-Known Member

    2,265
    1,220
    113
    I would have told them to change the discs on day 1. But I like a good moan:wink:
     
    Nick Moorhouse and Ron240 like this.

Share This Page