Volks AutosEM Tuning
Results 1 to 15 of 15
  1. #1
    olds_kool's Avatar
    5th Gear

    Status
    Offline
    Join Date
    Jul 2007
    Location
    stoke on trent
    Posts
    1,071

    abs brake issue?

    got my new car to a point it should pass mot except for one problem abs seems to kick in too early

    from medium braking at low speed abs kicks in just before it comes to a complete stop

    all disks and pads are good, changed brake fluid for fresh dot 4, cleaned abs rings and sensors whilst it was all stripped

    no fault codes logged on vagcom, all sensors are showing similiar speeds (meas. blocks channel 1)

    tried removing fuse and it takes more effort (i think) to lock them up than for abs to kick in

    anything else i can check with vagcom or am i missing something obvious? whilst typing ive just remembered ive not checked tyre pressures so will try that

    also anyone who uses eezibleed take note of bit where it tells you to pressure test system before starting, i didnt and reservoir burst spraying new fluid everywhere, didnt notice hairline cracks at rear where sunlight gets to it, luckily i had a spare
    kev
    a4 stuff http://shop.ebay.co.uk/merchant/olds_kool_gti
    99 1.8tqs black saloon
    99 1.8tqs grey avant
    90 eunos roadster

  2. # ADS
    ADS
    Join Date
    Always
    Location
    Global
    Posts
    Many
     
  3. #2
    "Stick a V8 in it!"

    Status
    Offline
    Join Date
    Jan 2008
    Location
    Glenrothes, Fife, Scotland
    Posts
    15,350
    i blew my resovoir to pieces too doing the same thing, i was being lazy though, and clipped it onto the osf wheel at 30psi :P

    I would imagine one of your abs sensors is either dodgy, or not fitted correctly, or the reluctor is corroded, causing one of the signals to drop out before you come to a halt and causing the abs to think the wheel is locked up.

    Try driving along very slowly and get someone to watch the reluctor outputs in vagcom and see if any starts to get erratic or low at the approximate speed it kicks in at?

    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
    TD5 Land Rover Defender build


  4. #3
    Geeman's Avatar
    Low Life

    Status
    Offline
    Join Date
    Mar 2009
    Location
    Grimsby
    Posts
    1,318
    Mine does exactly the same thing... it has done since I bought it.

    Didn't do it all the time, but recently it's getting more and more frequent.

    I'm assuming it's one of the ABS sensors that needs replacing. Just need to get my arse into gear and get it looked at.
    NEW 6 cylinder 40mm front springs - £40

    PM me for more info

  5. #4
    olds_kool's Avatar
    5th Gear

    Status
    Offline
    Join Date
    Jul 2007
    Location
    stoke on trent
    Posts
    1,071
    pumped tyres up (2 at 16psi) 10 times better but still not perfect
    booked in for mot tommorrow so will see what they say
    kev
    a4 stuff http://shop.ebay.co.uk/merchant/olds_kool_gti
    99 1.8tqs black saloon
    99 1.8tqs grey avant
    90 eunos roadster

  6. #5
    Geeman's Avatar
    Low Life

    Status
    Offline
    Join Date
    Mar 2009
    Location
    Grimsby
    Posts
    1,318
    Mine's booked in on Wednesday now to get it sorted. He reckons it could be the ABS ring that's corroded.

    He's also going to check out my over-fueling/stalling problem... hopefully.
    NEW 6 cylinder 40mm front springs - £40

    PM me for more info

  7. #6
    olds_kool's Avatar
    5th Gear

    Status
    Offline
    Join Date
    Jul 2007
    Location
    stoke on trent
    Posts
    1,071
    passed mot no brake issues
    but did get advisory about dents in bodywork?

    took it for a long test drive before putting it in and did a few 60-30 mph hard braking manuvers to clear rust from discs and bed in pads seemed to do the trick

    top mot tester aswell, slight blow in exhaust that he stuck some putty on for me to pass
    kev
    a4 stuff http://shop.ebay.co.uk/merchant/olds_kool_gti
    99 1.8tqs black saloon
    99 1.8tqs grey avant
    90 eunos roadster

  8. #7
    Broken Byzan's Avatar
    Photographic Moderator

    Status
    Offline
    Join Date
    Apr 2004
    Location
    Cardiff, United Kingdom
    Posts
    12,520

    My Social Networking

    Follow Broken Byzan On Twitter Add Broken Byzan on Facebook Add Broken Byzan on Google+ Visit Broken Byzan's Youtube Channel
    Advise on dents?? Odd !

  9. #8
    Geeman's Avatar
    Low Life

    Status
    Offline
    Join Date
    Mar 2009
    Location
    Grimsby
    Posts
    1,318
    Mine had the ABS brake issue on the last MOT and it passed. Can't be a fail item then.

    Still got mine going in to get it rectified on Wednesday though (and new stainless tailpipes on the Powerflow system on Saturday!)
    NEW 6 cylinder 40mm front springs - £40

    PM me for more info

  10. #9
    olds_kool's Avatar
    5th Gear

    Status
    Offline
    Join Date
    Jul 2007
    Location
    stoke on trent
    Posts
    1,071
    Quote Originally Posted by Byzan A4 View Post
    Advise on dents?? Odd !
    thats what i thought but ive never really put a car with dents in to be tested so must be normal? he also noted a middle door trim was missing, could understand if it was hanging off

    anyway top result, 300 purchase about 70 on bits n bobs, got some coilies, some 17's to refurb, a boost gauge and a k+n panel off it,
    a bit more tidying up and back on ebay it goes
    kev
    a4 stuff http://shop.ebay.co.uk/merchant/olds_kool_gti
    99 1.8tqs black saloon
    99 1.8tqs grey avant
    90 eunos roadster

  11. #10
    Broken Byzan's Avatar
    Photographic Moderator

    Status
    Offline
    Join Date
    Apr 2004
    Location
    Cardiff, United Kingdom
    Posts
    12,520

    My Social Networking

    Follow Broken Byzan On Twitter Add Broken Byzan on Facebook Add Broken Byzan on Google+ Visit Broken Byzan's Youtube Channel
    Nice work young man !!

  12. #11
    jcb
    6th Gear

    Status
    Offline
    Join Date
    Sep 2005
    Location
    uk
    Posts
    4,077
    mine does it also.
    low speed close to stopped and it gives a bit of a jitter.
    nightmare in snow!

    no codes on VAGCom though

  13. #12
    Geeman's Avatar
    Low Life

    Status
    Offline
    Join Date
    Mar 2009
    Location
    Grimsby
    Posts
    1,318
    Yup.

    No code must mean a mechanical part failed - i.e. ABS ring corroded.

    Does that sound plausible?
    NEW 6 cylinder 40mm front springs - £40

    PM me for more info

  14. #13
    6th Gear

    Status
    Offline
    Join Date
    Feb 2010
    Posts
    2,158
    olds_kool, did you resolve your fault? I have the same issue with my 1.8T, I'm going to clean the ABS rings at the weekend to see if that cures the fault.

  15. #14
    olds_kool's Avatar
    5th Gear

    Status
    Offline
    Join Date
    Jul 2007
    Location
    stoke on trent
    Posts
    1,071
    it seemed to fix itself, while everything was stripped i'd cleaned sensors and used a wire brush on rings so guessing it was some crap somewhere that got in the way then cleared itself once i started driving it
    kev
    a4 stuff http://shop.ebay.co.uk/merchant/olds_kool_gti
    99 1.8tqs black saloon
    99 1.8tqs grey avant
    90 eunos roadster

  16. #15
    Geeman's Avatar
    Low Life

    Status
    Offline
    Join Date
    Mar 2009
    Location
    Grimsby
    Posts
    1,318
    Mine's in today for it...

    Will keep you posted.
    NEW 6 cylinder 40mm front springs - £40

    PM me for more info

 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO