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Thread: ABS modulator

  1. #1
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    Unhappy ABS modulator

    hi can anyone tell me what workshop manual does for an Audi 80Sport 2L 94model? Also there's no brake fluid getting to the rear left caliper and none leaving the chamber in the ABS box to go to that wheel, Is it ok to dismantle the box? I'll be eternally grateful for any help as everything else has checked out including the master cylinder

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  3. #2
    enda1's Avatar
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    This is from elsawin the Audi workshop manual for the Audi 80.

    Warning!
    ◆ The hydraulic unit is not to be serviced in any way with the exception of pump and valve relay replacement. Never loosen screw connections.
    ◆ If necessary, replace hydraulic unit only as a complete assembly. Checking high and low pressure => Page 45-14

    I use this and the Haynes manual for the older model to do any work on my 80.
    You can take the black plastic cover of the back to check the relays. Large relay for return pump and small relay for the valve solenoid. Sounds the valve spool in the ABS block for this wheel is stuck closed. An ABS specialist should be the person to talk to
    Enda1

    96 S6 2.3T
    99 A6 1.8T SE
    93 80 2.0 (gone)
    93 Kawasaki ZZR600

  4. #3
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    hi thnx for the help, though i've found the unit costs between £300-500 so hope i can find an exchange as the car aint worth much more lol

 

 

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