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normal crank case pressure

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by johnmccracken, Aug 3, 2009.

  1. johnmccracken
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    johnmccracken New Member

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    [Aug 3, 2009]
    Hi,

    I have a 2004 A4 1.9 tdi which has done 75K, I have had the car aince 18K.

    I recently had cause to remove the filler cap whilst the engine was running, I was surprised at the amount of gas escaping and want to find out what is considered to be a normal and excessive amount of pressure.


    John
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  3. quattrojames
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    quattrojames Moderator Staff Member Moderator

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    [Aug 3, 2009]
    Blocked crankcase breather I expect. I think there is a pictorial guide to clean/change it in the diesel section.
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  4. johnmccracken
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    johnmccracken New Member

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    [Aug 3, 2009]
    cold you give me an idea of what normal pressure would be like ? When I place the filler cap on it jumps about a far bit but no enough to flip it off.
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  5. quattrojames
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    quattrojames Moderator Staff Member Moderator

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    [Aug 4, 2009]
    I've no idea I'm afraid, hopefully some with a 1.9 can advise?
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