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What is the Standard Brake Fluid in a 2003 A4 B6 1.9 TDi?

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by Springer*, Oct 21, 2011.

  1. Springer*
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    Springer* Member

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    Hi there,

    Just a quickie - is the standard brake fluid in my 2003 Audi A4 B6 1.9 TDi DOT4 fluid or is it DOT4.1?

    I need to top up the fluid a little and I have some DOT5.1 at home.. would putting some of that in on top of the existing fluid cause a problem? In other words, will it just mix and be ok or will it react and cause a problem?

    If I do need to get some new fluid, do I need a certain brand or cert spec fluid? :uhm:

    Cheers,

    J
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  2. gavsman
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    gavsman Member

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    Haynes manual I have say's DOT4
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  3. scottshere
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    scottshere Member

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    Should tell you on either the cap or on top of the reservour
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  4. Springer*
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    Springer* Member

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    Nice one, thanks!

    J
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