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water from exhaust,white smoke

vw754 Mar 16, 2012

  1. vw754

    vw754 vorsprung Durch Technik

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    2.0 tdi cab (my cousins car) 58,000 miles dealer history......white some and water can be seen from the exhaust,but only sometimes,the car does not lose any water......and theres quite a bit of back pressure when you pull out the dipstick or oil filler cap off........could this be the dpf? cant see the headgasket being an issue ...its a weird one this......anyone?
     
  2. *Adam

    *Adam Member

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    It only takes a small amount of water to produce the white smoke as I have just found out. I'd get a compression test done on the coolant system and work from there.
     
  3. Mike B

    Mike B Well-Known Member

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    I would be concerned about noticeable back pressure fromthe cap cos I have heard that this shows that the crankcase breather is blocked and this might be the white exhaust,A coolant pressure test is a good idea to check that the system is sound
     
  4. vw754

    vw754 vorsprung Durch Technik

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    thiss is at the top on the 2.0 tdi?.........top of the rocker/cam cover?
     
  5. Mike B

    Mike B Well-Known Member

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    Sorry I dont know the 2.0tdi mines a B6 2.5tdi and I have that earlier versions suffer the blockages and a symptom is this pressure build up
     

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