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

Advice needed on 2005 Audi A3 2.0 TDI 140 bhp Turbo noise

Discussion in 'A3/S3/Sportback (8P Chassis)' started by Cloth ears, Mar 19, 2011.

  1. Cloth ears
    Offline

    Cloth ears New Member

    Joined:
    Jan 30, 2011
    Messages:
    25
    Likes Received:
    0
    [Mar 19, 2011]
    Hi
    I've just purchased a second hand turbo for my A3 after being told by the garage that my previous turbo was not pressuring up sufficiently as the car was sluggish and engine management light was on so now I have had this one fitted there is a big difference in the pulling power but every time I put my foot down you can hear like a screeching whistling noise as soon as I take the foot off it disappears i have been told by the garage that it seems to be a slight leak from one of the seals on it, does any one have any suggestions and also does any one know any one who reconditions the turbo unit in Sheffield.
    He also mentioned that on the old turbo the fan was not spinning but he has managed to free it and it spins fine maybe that was the problem on the old unit, he also made me change the vacuum control unit that was on the bulk head black box with pipes coming out as he said when he bypassed it it ran better.
    #1
  2. Ads

    Ads

    [Sep 20, 2014]

  3. Digzz
    Offline

    Digzz "Started From The Bottom" VCDS Map User

    Joined:
    Jan 11, 2009
    Messages:
    1,404
    Likes Received:
    67
    [Mar 28, 2011]
    I have the same noise ......Don't know if my turbo is going or not....:sadlike:
    #2
  4. navnayyar
    Offline

    navnayyar Member

    Joined:
    Mar 23, 2008
    Messages:
    786
    Likes Received:
    0
    [Mar 28, 2011]
    Check intercooler pipes, the seals in them are common. You'd be wasting your money on a vnt recon. Best buy new
    #3
  5. Digzz
    Offline

    Digzz "Started From The Bottom" VCDS Map User

    Joined:
    Jan 11, 2009
    Messages:
    1,404
    Likes Received:
    67
    [Mar 28, 2011]
    Just did a Vagcom scan and it came up wit this :

    18359 - Radiator Fan 2 (V177): Movement Restricted / Jammed
    P1951 - 000 - - - Intermittent
    Freeze Frame:
    RPM: 819 /min
    Torque: 30.0 Nm
    Speed: 0.0 km/h
    Load: 0.0 %
    Voltage: 14.14 V
    Bin. Bits: 00000111
    Temperature: 84.6°C
    Duty Cycle: 9.6 %

    16502 - Engine Coolant Temp. Sensor (G62): Signal too High
    P0118 - 000 - -
    Freeze Frame:
    RPM: 1932 /min
    Torque: 172.0 Nm
    Speed: 48.0 km/h
    Load: 41.2 %
    Voltage: 14.52 V
    Bin. Bits: 00000000
    Temperature: 36.9°C
    Temperature: 34.2°C

    16618 - Boost Pressure Regulation: Limit Exceeded (Overboost Condition) I think it's something to do with this ....as it went into limp mode......
    P0234 - 000 - -
    Freeze Frame:
    RPM: 2520 /min
    Torque: 276.0 Nm
    Speed: 110.0 km/h
    Load: 51.4 %
    Voltage: 14.44 V
    Bin. Bits: 00000000
    Absolute Pres.: 2019.6 mbar
    Absolute Pres.: 2590.8 mbar

    Readiness: 0 0 0 0 0
    Last edited: Mar 28, 2011
    #4
  6. mike foster
    Offline

    mike foster Fossie VCDS Map User

    Joined:
    Jan 16, 2010
    Messages:
    3,969
    Likes Received:
    79
    [Mar 28, 2011]
    #5
  7. NHN
    Offline

    NHN Retrofitter - Audi - VW - Skoda - Seat Site Sponsor VCDS Map User

    Joined:
    Jan 14, 2008
    Messages:
    27,320
    Likes Received:
    1,229
    [Apr 6, 2011]
    Those codes I also had when my turbo was about to blow up, the vanes are probably caked, I wouldnt drive it until turbo is checked.
    #6
  8. lukehayden
    Offline

    lukehayden New Member

    Joined:
    Apr 27, 2012
    Messages:
    1
    Likes Received:
    0
    [Apr 27, 2012]
    #7

Share This Page