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288 to 312mm brake disc upgrade!

Sam Dennis Jul 18, 2020

  1. Sam Dennis

    Sam Dennis Registered User

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    Hi All,

    Firstly, thanks for taking the time to read my post! I'm after a little guidance on what I need. From all the other posts I've read I can see I need the carriers from a car with a PR code of these: 1ZA 1ZC 1ZM 1ZD 1LJ.

    My PR code is 1ZE.
    My car is a 2013 8VA 2.0TDI CRBC 150BHP Mapped to 201bhp

    Ive found 2 sets of OE part numbers:
    8V0615126A and 8V0615125A
    And
    5G0615125 and 5G0615126

    Has anyone here done the upgrade and are you able to confirm the parts you've used? There aren't too many on ebay and no one has mentioned the PR code or OE code and don't want to buy blind.

    If anyone can help me out here I'd be over the moon as I'm itching to get some parts on order!!

    Thanks all,

    Sam!
     
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  3. rcnacura

    rcnacura US Spec 8V

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  4. Sam Dennis

    Sam Dennis Registered User

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    I wish I could afford the BBK! I just wanted to allow for a 312mm disc with the standard setup just to fill out the wheel a little bit as the brakes look lost under my current wheels. Thanks for the info though mate! Really interesting stuff!
     
  5. rcnacura

    rcnacura US Spec 8V

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    I was able to find the bbk used for roughly $1400 USD - it was cheaper than used OEM at the time. The rear upgrade wasn't as cheap as I thought either, but because of the electronic parking brake.

    Sent from my Pixel 3 XL using Tapatalk
     
  6. Peter82

    Peter82 Registered User

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    Why not upgrade to S3 calipers and discs 345mm when you've done map?
     
  7. Sam Dennis

    Sam Dennis Registered User

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    I don't think the 345 would fit under my wheels they're only 17s you see just had a brand new set of tyres too so would be reluctant to change size
     
  8. Peter82

    Peter82 Registered User

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    It will don't worry :) just about..
     
  9. Sam Dennis

    Sam Dennis Registered User

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    Just about? I like it are all the S3 brakes the same?? Does it matter on the year? Don't suppose you've got a link or anything just to help? I'd buy them second hand just want to make sure I buy right!
     
  10. Peter82

    Peter82 Registered User

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  11. dp_motley

    dp_motley 2012 A3 1.6 TDI S line 2019 A3 35TFSI S line

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    Hi Sam. I upgraded the 288mm brake discs to 312mm ones last week. You need two calliper carriers: 8V0615125A, 8V0615126A. And you need some 312mm brake discs, obviously. The best price I've found on ebay here: https://www.ebay.co.uk/itm/143327568974 I chose the whole kit (callipers, carriers and pads) because it was cheaper than if I bought two carriers separately at any other place. I changed the carriers and the pads only, so I have a set of new callipers that I can sell and get some money back, if I want.

    I also bought a set of Zimmermann drilled and coated discs here: https://www.ebay.co.uk/itm/202582403855 Again, it was the best price. Zimmermanns are lighter than brembos of the same size in case if you are concerned about the unsprung/rotational mass. I am.

    There are some pictures I posted in my thread: #30
     
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  13. Henda

    Henda Registered User

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    So you literally just have to replace the carrier and the disc’s, using the original calliper from The 288 disc wont have any negative effect on the braking capabilities?
     
  14. Sam Dennis

    Sam Dennis Registered User

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    Update: I've managed to get hold of the carriers from a guy on Facebook, ordered some brake discs from MTEC and some EBC pads. Heard mixed things about MTEC discs but more good than bad so we'll see. I'll post pictures as I do stuff too! I've ordered some Castrol React DOT 4 too, going to do a full flush too!

    From what I can make out the braking is improved due to the braking point on the disc is further from the center of rotation increasing the braking force for the same pedal input pressure!

    Will keep you up to date!
     
  15. Gazwould

    Gazwould Registered User

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    Can't argue with physics .
     
  16. dp_motley

    dp_motley 2012 A3 1.6 TDI S line 2019 A3 35TFSI S line

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    Yes. Softer braking was the only effect I noticed so far.
     
  17. Peter82

    Peter82 Registered User

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    mtec entry quality for little bit more you could have nice brembo kit ... discs ,pads and calipers
     
  18. Fatbloke

    Fatbloke Registered User

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    Any good deals on rear electronic calipers?

    Ordered the set you posted for the front, just need the 312mm disk now.
     
  19. dp_motley

    dp_motley 2012 A3 1.6 TDI S line 2019 A3 35TFSI S line

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    Is it possible to fit bigger discs to the rear?

    As to the 312mm discs, I like the zimmermanns. They work great with the pads from that set, do not squeal, lighter than brembos and look good.
     
  20. Fatbloke

    Fatbloke Registered User

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    I dont want to fit bigger rear disks, I just wondered if you had a link for replacement rear electronic calipers. The link for the front ones you gave was very good.
     
  21. dp_motley

    dp_motley 2012 A3 1.6 TDI S line 2019 A3 35TFSI S line

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    I don't have such a link, sorry. I had the link for the front ones just because I searched the best price on the calliper carriers and this one was the best deal.
     
    Fatbloke likes this.
  22. Sam Dennis

    Sam Dennis Registered User

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    An update.

    Looks like the guy on Facebook diddled me, got back from my holiday to find MK5 golf brackets and not MK7 as advertised so going to have to order from elsewhere. Seriously thinking about the ones posted above but they're out of stock
     
  23. Peter82

    Peter82 Registered User

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    Attached Files:

    Last edited: Aug 3, 2020

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