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ABS light after rear wheel bearing

Discussion in 'A4/S4 forum(B5 Chassis)' started by teo420, Jul 23, 2011.

  1. teo420
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    teo420 Member

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    did my rear bearing today and abs light was on after

    i know the sensor is still there and connected
    all i did was spray it with brake cleaner

    about how much is a new sensor ???
    #1
  2. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator

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    FWD or Quattro?

    Did you disturb the toothed wheel?
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  3. teo420
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    teo420 Member

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    FWD

    didnt touch the toothed wheel
    and if I did how would that cause it to fault
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  4. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator

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    Because the sensor reads the toothed wheel?

    So if you've damaged it when doing the bearing that may explain the fault.
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  5. mike-a
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    mike-a Member

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    Drive it a bit then re torque the nut on the stub axle to specified setting.Even though I set my axle nut as per the Haynes manual it needed doing again a few days later.Had exactly the same fault as you're having.I fitted new discs at the same time but reused my reluctor rings (the toothed wheels on the rear of the discs) every couple of weeks mine will come up with a no signal code.Luckily it can be cleared by switching ignition off.I'd be reluctant to disturb the abs sensor unless you really have to as they're a bit fragile.
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  6. teo420
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    teo420 Member

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    Took the disk off and saw the sensor on the dust shield... very dirty so I sprayed with brake cleaner and wiped it with me finger (kinda pushed it) as soon as I started the car ABS light and ! on screen
    car havent rolled so must be the sensor
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  7. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator

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    As soon as you started or as soon as you drove off?

    If it came on as soon as you started then its an electrical fault like youve damaged the wiring to the sensor.
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  8. teo420
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    teo420 Member

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    yea when I started it the light came on
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  9. teo420
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    teo420 Member

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    anyone gonna be around coventry area tomorow
    I bought the car with no jack stand and no wheel lug key
    If anyone is around come by and help me get the car in the air
    check the sensor....

    just got a call on a potential buyer and would like to show them the car with no faults....

    cheers
    #9

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