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

Do disc heat shields need to be there?

Discussion in 'A3/S3/Sportback (8P Chassis)' started by Newquaygreen, Nov 23, 2013.

  1. Newquaygreen
    Offline

    Newquaygreen New Member

    Joined:
    Sep 15, 2013
    Messages:
    12
    Likes Received:
    0
    [Nov 23, 2013]
    My disc heat shields need replacing but I was wondering if they are really needed at all. If I just removed them would it make any real difference to the cars braking performance?
    #1
  2. Ads

    Ads

    [Oct 21, 2014]

  3. JimmyH
    Offline

    JimmyH Member

    Joined:
    Oct 8, 2013
    Messages:
    244
    Likes Received:
    44
    [Nov 23, 2013]
    Leave it alone, it's there for a reason. it prevents water, debris and general **** from damaging and contaminating the brakes.
    #2
  4. S3Alex
    Offline

    S3Alex Rarely neutral

    Joined:
    Dec 3, 2008
    Messages:
    5,976
    Likes Received:
    1,334
    [Nov 23, 2013]

    The other side of Jimmy's comment is that mine have been removed a long time ago.....no issues at all.
    #3
  5. s3_sid
    Offline

    s3_sid Active Member

    Joined:
    Jul 11, 2013
    Messages:
    353
    Likes Received:
    32
    [Nov 23, 2013]
    its main purpose to my knowledge is a stone guard to stop stones being flicked up and getting wedged between then pad and disk ruining you lovely expensive disks , unlikely to happen but still
    #4
  6. mjr901
    Offline

    mjr901 Parts Manager - (Main Dealer)

    Joined:
    Nov 24, 2011
    Messages:
    2,839
    Likes Received:
    525
    [Nov 23, 2013]
    Infact they are just a stone collecter!!

    Stones wedge behind the disc and this guard and block up the vents of the disc anyway, and cause horrendous noise.

    If you take them off, leave them off I say.
    #5
  7. JimmyH
    Offline

    JimmyH Member

    Joined:
    Oct 8, 2013
    Messages:
    244
    Likes Received:
    44
    [Nov 23, 2013]
    I can safely say I have never had the issue of the disc guard collecting stones on any of my cars!?!
    #6
  8. bmh.01
    Offline

    bmh.01 Member

    Joined:
    Apr 16, 2012
    Messages:
    281
    Likes Received:
    15
    [Nov 23, 2013]
    Not ultimately necessary, remove if you will. A lot of cars don't have them at all.
    #7
  9. desertstorm
    Offline

    desertstorm Well-Known Member

    Joined:
    Nov 21, 2013
    Messages:
    1,168
    Likes Received:
    328
    [Nov 23, 2013]
    On ETKA they are described as splash shields so the manufacturer puts them there to try and keep water from the brakes.
    If they didn't do anything then the manufacturer wouldn't put them there. I did remove them on my Passat when I upgraded the brakes to larger discs and never noticed any real difference except occasionally in the winter when there was a lot of slush around and the brakes were cold there would be a bit of a delay before they started working. Possibly due to the whole braking system being waterlogged.

    karl.
    #8
    Artimus and JimmyH like this.
  10. JohnE
    Offline

    JohnE 2005 A3 Sport 1.6 FSI

    Joined:
    Mar 19, 2012
    Messages:
    415
    Likes Received:
    36
    [Nov 23, 2013]
    My front ones have mostly rusted away anyway
    #9
  11. Sevv
    Offline

    Sevv Pushing the limits..

    Joined:
    Jan 27, 2011
    Messages:
    1,322
    Likes Received:
    116
    [Nov 24, 2013]
    i have taken them off and they are staying off and never had any problems, only thing is your more likely to get more brake dust.. bonus side is one less item bolted to the car and less weight (even though they arent heavy but still)
    #10
  12. JimmyH
    Offline

    JimmyH Member

    Joined:
    Oct 8, 2013
    Messages:
    244
    Likes Received:
    44
    [Nov 24, 2013]
    total weight saving of about 600 grams, personally don't think it's worth it .... Better option that'll save you more weight is go to the toilet before you go for a drive :)
    #11
    CHEZ and Sevv like this.
  13. Sevv
    Offline

    Sevv Pushing the limits..

    Joined:
    Jan 27, 2011
    Messages:
    1,322
    Likes Received:
    116
    [Nov 24, 2013]
    lol, that must be one hell of a visit to the toilet haha, but if you think about it you can go to the toilet and loose the shields and you'll have extra weight of the car :p
    #12
    JimmyH likes this.
  14. JimmyH
    Offline

    JimmyH Member

    Joined:
    Oct 8, 2013
    Messages:
    244
    Likes Received:
    44
    [Nov 24, 2013]
    Haha, mega toilet visit.
    #13
  15. boost-addict
    Offline

    boost-addict Active Member

    Joined:
    Aug 22, 2011
    Messages:
    982
    Likes Received:
    35
    [Dec 5, 2013]
    I had no choice all 3 bolts both sides snapped and haven't had rear guards on for some time. No adverse effects yet
    #14
  16. Artimus
    Offline

    Artimus Short Back

    Joined:
    May 9, 2012
    Messages:
    1,895
    Likes Received:
    368
    [Dec 5, 2013]
    Don't they also minimise heat soak from the disks into the brake lines, helping to avoid boiling brake fluid\brake fade on track days\spirited drives?
    #15
  17. desertstorm
    Offline

    desertstorm Well-Known Member

    Joined:
    Nov 21, 2013
    Messages:
    1,168
    Likes Received:
    328
    [Dec 5, 2013]
    Sometimes they will provide protection to ABS sensors and the like from direct radiated heat. On the Passat , when I removed the front shileds I cut a small piece of aluminium and secured it to one of the bolts to stop any issues.

    Karl.
    #16

Share This Page