1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

VNT clean on PD170 help - Mr. Muscle method

Discussion in 'A3/S3/Sportback (8P Chassis)' started by Sidhu88, Feb 7, 2013.

  1. Sidhu88
    Offline

    Sidhu88 Member

    Joined:
    Jan 31, 2012
    Messages:
    793
    Likes Received:
    4
    Just wondering if anyones successfully done this on the PD170? After reading the threads for the b5 and b6 a4's with the 1.9 and 2.5 tdi lumps I've been wanting to do this with mine.

    I know for sure its the case that the vanes aren't free to move properly, i'm getting overboost and limp mode in 3rd 4th or 5th if im over 3000rpm with my foot down. Under 3k the car still pulls well, after that it feels like its struggling as if the DPF is blocking up (which was my initial thought as to what the problem was, but after a long drive it was no better). I've also played around with the actuator to get it moving a bit more freely and the car instantly responded better but after about 20 miles or so it was back to normal.

    My problem with this method is the following, on the guides for the B5 and B6 engines the turbo is mounted lower than the exhaust manifold. Whereas (at least im fairly certain) on the PD170 and most likely the PD140 too, the turbo is mounted above the exhaust manifold. So am i right in saying that if i was to put mr. muscle in, it would leak down into the exhaust manifold and potentially into the engine too? And as mentioned in those threads it's only safe to use on the cast iron (Exhaust side) of the turbo and nothing else.

    I really don't fancy trying to take the turbo off myself, seems like a hell of a job. Does anyone have any other (cheap) suggestions if this is definately not an option?
    #1
  2. NHN
    Offline

    NHN Modmetractor Site Sponsor

    Joined:
    Jan 14, 2008
    Messages:
    27,217
    Likes Received:
    29
    The only sure fire way of getting them clean is to remove, strip, clean & refit, Mr Muscle is a temp job that may not even work or for long, so I would do it properly or you could be back to square one in a month or so.
    #2
  3. Cyrix
    Offline

    Cyrix Member

    Joined:
    Mar 16, 2010
    Messages:
    212
    Likes Received:
    0
    Agree with NHN, even then, stripping down the exhaust side of the turbo has plenty of scope for error if you don't know what you are doing.

    If I was that far in and the car has done any kind of mileage, given that the PD170 is a proper c*ck on to remove the turbo on in terms of removing the DPF I would be replacing the turbo with a recon unit.

    In summary - Don't waste your time just replace the turbo, after that stop driving like Miss Daisy and the VNT problems will go away.
    #3
  4. Sidhu88
    Offline

    Sidhu88 Member

    Joined:
    Jan 31, 2012
    Messages:
    793
    Likes Received:
    4
    Thats just it, i have lead foot syndrome but the problem still came about. The turbos been changed once before by the previous owner so im not certain that its definitely in need of a change. I do understand where ur coming from but i dont think its necessary to change it completely seeing as the rest of it is still ok.
    #4
  5. tdi-man
    Offline

    tdi-man Active Member

    Joined:
    Jul 27, 2009
    Messages:
    1,610
    Likes Received:
    1
    #5
  6. Imteyaz
    Online

    Imteyaz 6th Gear

    Joined:
    Oct 2, 2008
    Messages:
    530
    Likes Received:
    0
    Nick from R-Tech has some youtoob vids that may be helpful (their based on the MK4 Golf TDI so should be similar I imagine).

    Failing that, if you're not too far away from him (Hinckley, Leicestershire), let him do the work for you.







    Last edited by a moderator: Aug 15, 2014 at 12:29 PM
    #6
  7. Sidhu88
    Offline

    Sidhu88 Member

    Joined:
    Jan 31, 2012
    Messages:
    793
    Likes Received:
    4
    Seen these videos already thanks. If i could get the turbo off easily enough id definitely be cleaning it myself but as mentioned by before its not the easiest thing to do on this car. And hinckleys about 100 miles from me
    #7
  8. Sidhu88
    Offline

    Sidhu88 Member

    Joined:
    Jan 31, 2012
    Messages:
    793
    Likes Received:
    4
    #8
  9. tdi-man
    Offline

    tdi-man Active Member

    Joined:
    Jul 27, 2009
    Messages:
    1,610
    Likes Received:
    1
    wynns is normally good stuff to use i was thinking of doing mine say once a year
    #9

Share This Page