M271 - source of oil in intake manifold?

Discussion in 'Engine' started by PrzemoF, Nov 29, 2019.

  1. PrzemoF

    PrzemoF New Member

    Messages:
    9
    Joined:
    Jun 10, 2011
    Car:
    E200 Kompressor, SLK200 Kompressor
    I found out that there is some oil in the intake manifold. Are there any possible sources of oil leak into the intake manifold beside the breather hoses? Photo shows MAP sensor...
     

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  2. whizzy

    whizzy New Member

    Messages:
    9
    Joined:
    Apr 8, 2017
    Car:
    Mercedes C200 Kompressor 2.0L 2005
    Replace your PCV valve should resolve this issue. It is located under the engine. You will have to raise the car and look under the engine to get to it. Also replace your MAF sensor unless you can clean it sufficiently without damaging it, if you do replace it get a good one, not one of these cheap ones from Ebay
     
  3. OP
    OP
    PrzemoF

    PrzemoF New Member

    Messages:
    9
    Joined:
    Jun 10, 2011
    Car:
    E200 Kompressor, SLK200 Kompressor
    Thanks! I'm planning to get to the PCV valve (that's the one under the compressor?). I don't think MAF is oiled. It's MAP.
     

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