Chris NottJMB Retrofits
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  1. #1
    marrick92's Avatar
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    Guide for fitting new brake discs and pads? (A3 1.8t 150bhp)

    Does anyone know of a guide for how to fit new discs and pads all round? and i mean a full guide with pics etc, i've had a good search for the last hour but i cant see anything that makes sence
    I know how to use a spanner, (fitted my front mount, decat and a few other jobs in the past) but the only experience i have with hydraulic brakes was with my old downhill mountain bike, and that was just 2 bolts for the caliper, 6 bolts for the disc.

    If there is'nt any good guides then i'll get one made when i do my brakes tomorrow, so even any hints or tips would be very useful! But also note that i dont have any specialist tools so i may have to improvise.

    Thanks in advance for any help :D

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  3. #2
    jay1601's Avatar
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    you need a rewind tool to do the rear calipers. don't try to squeeze the rear caliper.

    undo bolt take off caliper replace disc and pad. easy job tbh.
    Audi A3 8L 1.8T breaking.
    front bumper, impact bar, slam panel, full engine and loom sold.
    everything else for sale.

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    I'm planning on doing this this weekend, have done it on my previous cars, clip and integra but not sure if anything different here except for this wind back took for the rear piston!!

  5. #4
    marrick92's Avatar
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    Whats this rewind tool? nothing that can be used instead of these ?

  6. #5
    jay1601's Avatar
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    its a tool for rewinding the piston back into the caliper. and no.
    Audi A3 8L 1.8T breaking.
    front bumper, impact bar, slam panel, full engine and loom sold.
    everything else for sale.

  7. #6
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    It is possible to use a pair of pliers to rewind back the rear pistons, bit the tool is much easier as the front require a bit of force to push back in, brought mine from halfrauds for about £25. Also would recommend buying a heynes manual whe you are there! But to be honest it is just a case of unbolting and bolting back on! Good luck!

  8. #7
    marrick92's Avatar
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    Thanks again for all your help! unfortunatly i spent the last of my money on the brakes and a K03s turbo so it might have to wait until my next payday if i need this tool i'll see if one of my mates has one lying around and if not then im going to cry! suppose i could just do the front ones for now?

  9. #8
    jay1601's Avatar
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    you can buy a little square tool from halfords about £15 i think. has 4 different patterns on it (not sure if it will do the audi rears)

    or take a look on ebay might get something cheap on there

    i paid nearly £70 for a 19 pc set
    Audi A3 8L 1.8T breaking.
    front bumper, impact bar, slam panel, full engine and loom sold.
    everything else for sale.

  10. #9
    Metro's Avatar
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    I just used some pliers on the rear. For the fronts I used a piece of wood with a hand vice (can't remember the name of them) was dead easy!

    Audi A3 1.8t AUM
    Forge 007p, Pipercross Panel Filter, Eibach Prokit 35mm drop, EBC Green Stuff Pads
    Groved Disks, HEL Braided Brake Lines with Dot 5.1 fluid.
    Creation Motorsport Silicone TIP,
    N75 hoses, DV Hose & 10mm Rear Wheel Spacers
    Powerflex Rear Beam Bushes & Diesel Dog Bone Bush
    8k HID Kit, 8k LED Side Lights, 8k Number Plate LED




  11. #10
    marrick92's Avatar
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    Thats the sort of thing i like to hear! how were these pliers used? do i need to grab and twist it? if so im guessing clockwise?

    Got the fronts done today, ill get a guide up when i get a chance

  12. #11
    deeman88's Avatar
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    nice work Marrick92, keep us posted
    My Build Thread... Nothing too special


    Mods: ASN Sticker on Rear Driver Window, Forge 006, KO3s Turbo, Silicone TIP, 3inch Downpipe, Decat, FK Coilovers, Bosch Aero Retrofits, NGK 6458 Sparkplugs.

    To do : Front and Rear 25mm ARB, Strut Brace, Adjustable Droplinks, Poly Red DogBone, Remap, FMIC... to be completed


  13. #12
    Metro's Avatar
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    You need snipe nosed pliers and there are two indents in the piston opposite each other, put the ends of the pliers in these push and turn until the piston is level with the boot. Give the boots a good check over before fitting. I needed new calipers on mine in the end.

    Audi A3 1.8t AUM
    Forge 007p, Pipercross Panel Filter, Eibach Prokit 35mm drop, EBC Green Stuff Pads
    Groved Disks, HEL Braided Brake Lines with Dot 5.1 fluid.
    Creation Motorsport Silicone TIP,
    N75 hoses, DV Hose & 10mm Rear Wheel Spacers
    Powerflex Rear Beam Bushes & Diesel Dog Bone Bush
    8k HID Kit, 8k LED Side Lights, 8k Number Plate LED




  14. #13
    marrick92's Avatar
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    Quote Originally Posted by metromaster View Post
    You need snipe nosed pliers and there are two indents in the piston opposite each other, put the ends of the pliers in these push and turn until the piston is level with the boot. Give the boots a good check over before fitting. I needed new calipers on mine in the end.
    Cheers for the advice mate, ill give it a go on my next day off! can you remember which was the piston turns? ive heard that its a different way on different cars :/
    I had a advisory on my MOT that the rear passanger side caliper had a leak.. so that could be a new caliper job

    Thanks Deeman88 <3

  15. #14
    S3featesV9's Avatar
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    Turn clockwise mate watch out you don't pinch the boot.
    MODS - Custom Code phase 1, 007p DV, various powerflex bushes, EBC grooved and drilled - red stuff pads, N249 deletion. Badger5 V2 80mm TIP. Scorpion backbox + custom centre section, LCR front splitter, Jetex Fr-08001, R32 rear ARB, Forged IE rifle drilled rods, 20mm rear & 15mm front spacers.

    TO DO - Coilovers, adjustable tie arms, DP/mani/decat, FMIC and new remap


  16. #15
    superkarl's Avatar
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    I always use a g-clamp to push the piston, with molegrips to twist, works well. Just make sure you only pinch the very end of the piston and try not to catch the bpot.

  17. #16
    "Stick a V8 in it!"

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    If the pistons are free, you can just wind them back in with a pair of pointy pliers as described.

    However if they're sticky you'll almost certainly need the right tool.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
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  18. #17
    jay1601's Avatar
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    Quote Originally Posted by aragorn View Post
    If the pistons are free, you can just wind them back in with a pair of pointy pliers as described.

    However if they're sticky you'll almost certainly need the right tool.
    agreed with this. even with the correct tool mine was hard to wind back in
    Audi A3 8L 1.8T breaking.
    front bumper, impact bar, slam panel, full engine and loom sold.
    everything else for sale.

  19. #18
    Metro's Avatar
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    There's a company called big red on eBay that sell reconned original calipers and give you 30/40 back for your old ones. Works out at about 100 for both new calipers

    Audi A3 1.8t AUM
    Forge 007p, Pipercross Panel Filter, Eibach Prokit 35mm drop, EBC Green Stuff Pads
    Groved Disks, HEL Braided Brake Lines with Dot 5.1 fluid.
    Creation Motorsport Silicone TIP,
    N75 hoses, DV Hose & 10mm Rear Wheel Spacers
    Powerflex Rear Beam Bushes & Diesel Dog Bone Bush
    8k HID Kit, 8k LED Side Lights, 8k Number Plate LED




  20. #19
    A3 T's Avatar
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    I made a guide on doing the front pads a while ago but as usual it didn't get much interest :-(


    http://www.audi-sport.net/vb/a3-s3-forum-8l-chassis/130954-how-change-brake-pads.html#post1371420
    Audi A3 T sport (8l) AUM 2001..... Stage 1 Remap , Bailey DV30 , HID Headlights , LED Sidelights/Footwells , Catch Can , N249 Bypass , Tinted Windows .....

  21. #20
    marrick92's Avatar
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    My front pistons were pretty sticky so im guessing the backs will be the same, however i love superkarl's idea.. Mole grips and a g clamp
    My next day off is friday so i'll try then and see what happens, i'll just make sure i have a bit of cash in my pocket so if i get sick i can go buy a proper tool
    @A3 T, i saw your guide before doing my brakes, it helped me in places but im a more focal kinda guy, need to see things in the flesh to get my head around them

  22. #21
    marrick92's Avatar
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    Got a guide up for fitting the front discs + pads, hope it helps people in the future who are inexperienced (like myself)

    In depth guide for fitting brake discs and pads. (Picture heavy)

 

 

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