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Thread: N92 intake cleaning

  1. #1
    Junior Member
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    N92 intake cleaning

    Hi
    Can anyone recommend someone that does the walnut blasting of the intake port valves?
    Or has anybody had it done, recommend, outcome, results etc.
    Besides paying thousands to BMW themselves.
    Thanks.


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  2. #2
    BMWHaus Contributor
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    Interested in this too myself, see it all over the U.S. forums.


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    2007 BMW E92 335i Sapphire Schwarz - Previous
    1998 BMW E36 318iS Cosmos Schwarz - Previous

  3. #3
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    Ya even in the UK they have a lot of independent garages doing it.

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  4. #4
    BMWHaus Contributor
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    We do this, not the Walnut one but our own taking out the manifold too. Costs 200 euros. Huge difference indeed. Same physical results.

  5. #5
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    How long does the procedure take?

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  6. #6
    BMWHaus Contributor
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    Hi the process takes about 2h.
    Cheers

  7. #7
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    Really that seams very fast for being able the strip out everything clean out the carbon deposits in all 6 intake port valves and put it all back together.

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  8. #8
    BMWHaus Contributor
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    Quote Originally Posted by Gazbie View Post
    Really that seams very fast for being able the strip out everything clean out the carbon deposits in all 6 intake port valves and put it all back together.

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    First i never started an actual timer when doing the job. So 2h is a rough figure.
    Second we run a first product through the fuel line.
    Third once the fuel line is cleaned, we run another product through the air intake. And we do not need to strip everything.
    So more efficient cleaning than the walnut method as injectors get cleaned up too
    We know what we are doing you will realise once you are in the place.

    I hope this helps

    Cheers

  9. #9
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    Sounds good
    Cheers


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