I’ve decided to do this just as a precaution and without any symptoms. Anyway, I was stunned by the results. First, everything was much clogged than I suspected and second the calt felt much better – engine work became more quite, the car became more powerful especially on lower speeds. Highly recommended procedure for all of you diesel car owners out there!


This Post Has 7 Comments

  1. Jonas

    Can we have a more detailed guide? :-)

  2. Jonas

    btw.. Just found your website the other day. Thank you for the amazing tutorials.

  3. Renier

    Awesome, I was already wondering whether to do it or not after having the EGR disabled, absolutely seems worth it!

    1. Renier

      How did you do it by the way? What cleaner and equipment did you use?

  4. Audi A6 Retrofit

    I used ultrasonic clelaner for this procedure and degreaser mixed with water. 30 minutes “boiling” in it and it’s brand new.

  5. clerc

    do you clean the 6 “pipe” who arrive on the valve ?

    1. Audi A6 Retrofit

      No need since it was clean

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