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Which brake fluid?

Blacky165 Jan 19, 2013

  1. Blacky165

    Blacky165 Member

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    Simple question - which brake fluid should I use for my standard 2005 A3 8P 2.0l TDi?

    I presume 1 litre of Dot 5.1 would be ok?

    Thanks everyone
     
  2. wesmaster

    wesmaster Member

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    I would use DOT4 ESP, otherwise problems with ABS unit.
     
  3. GuyJ

    GuyJ Member

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    No No No. Use Dot4 :)
     
  4. GuyJ

    GuyJ Member

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    Beat me to it!
     
  5. donna

    donna Member

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    from what i understand if your car is designed to have dot 4.1 then that is what should be used. thay cant be mixed

    dot 5.1 is more for race use,and has a higher boiling point also you may need to replace your brake hoses under the arches to steel bradied becouse the standard ones would swell becouse dot 5.1 has less give, therefore expanding the week point when the brake is pressed.

    thats what i understand. someone else m
     
  6. wesmaster

    wesmaster Member

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    Had the pressure sensor issue?
     
  7. Blacky165

    Blacky165 Member

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    Thanks for all the replies! Fairly conclusive - I shall get some dot 4 instead. Thanks again everyone.
     
  8. JPK

    JPK Active Member

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    Rather than starting my own thread. It's time for a fluid flush and change on my A3. For 'fast road' use, just use genuine VAG dot 4 fluid? Have stainless lines and new rotors and pads going on at the same time but I've read that ABS/ESP units dont particularly like race fluids like Motul RBF660 etc? OEM holds up well in most circumstances?
     
  9. Sevv

    Sevv Pushing the limits..

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    is Motul RBF660 okay to use ? i just order 1.5ltrs :(
     
  10. MrLapou

    MrLapou Well-Known Member

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    Dot4 a must
     
  11. Sevv

    Sevv Pushing the limits..

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    so what does it basically do to the ABS unit ?
     

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