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Thread: Oil sensor workshop

  1. #1
    Junior Member fasteddie155's Avatar
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    Unhappy Oil sensor workshop

    Ok so got the dreaded Oil sensor workshop light come up on my 2009 Golf 2.0 TDI dash.

    I bought a new sensor fitted it and the light was still on so thought this must be faulty and i bought another.
    Fitted my second one and the light went off, Yipppppeeee, not, after 20 miles and no lights and restarting my car 3 times it came back on.
    I have an Autel Maxscan vag405 and checked on the codes stored and its come up with;
    00406-032 Sunroof Motor Position Sensor (G402)

    I don't have a sunroof

    Any clues please as to what the problem might be
    Last edited by fasteddie155; 17-08-19 at 15:26.
    My drive looks like a Vag forecourt;

    2009 Golf 2.0 TDI-CR CBDC
    2011 Polo mk5 1.2S
    2011 Seat Ibiza 1.2

  2. #2
    Junior Member fasteddie155's Avatar
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    No replies from Keithuk or Crasher so it must be bad
    My drive looks like a Vag forecourt;

    2009 Golf 2.0 TDI-CR CBDC
    2011 Polo mk5 1.2S
    2011 Seat Ibiza 1.2

  3. #3
    Administrator Keithuk's Avatar
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    That isn't an Oil sensor problem that's something else.

    VAG Error Code: 00406

    Fault Location:
    Sunroof Motor Position Sensor (G402) - Electrical Fault in Circuit

    Possible Cause:
    Wiring/Connector(s).
    Sunroof Motor Position Sensor (G402).

    Possible Solutions:
    Check/Replace all faulty Wiring/Connector(s).
    Read Measuring Value Blocks (MVB).
    Check/Replace Sunroof Motor Position Sensor (G402).

    As taken from my new EOBD II Fault Codes Software
    2010 Golf GTD (170) CBBB, 5 Door, Shadow Blue (P6/D5Q), Transmission Code: KXZ, Flat Tyre Indicator, Basic Protection Pack + VCDS.


  4. #4
    Administrator Crasher's Avatar
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    Quote Originally Posted by fasteddie155 View Post
    No replies from Keithuk or Crasher so it must be bad
    I was tiling the bathroom....

    Does your dash show the bonnet is open when it is?
    "I disapprove of what you say, but I will defend to the death your right to say it"

    Evelyn Beatrice Hall (28 September 1868 13 April 1956)

  5. #5
    Junior Member fasteddie155's Avatar
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    Hi Crasher hope the bathroom is looking good. I have checked the bonnet switch and where it plugs in by the left headlight but isn't that. Door and bonnet and boot lights go out on my dash. Im at a bit on as a loss to what it is. Im going to try more things this weekend including changing the sensor again.
    I wish i had a sunroof Keithuk and this would point me in the correct direction.
    My drive looks like a Vag forecourt;

    2009 Golf 2.0 TDI-CR CBDC
    2011 Polo mk5 1.2S
    2011 Seat Ibiza 1.2

  6. #6
    Junior Member fasteddie155's Avatar
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    Still hunting for the answer please
    My drive looks like a Vag forecourt;

    2009 Golf 2.0 TDI-CR CBDC
    2011 Polo mk5 1.2S
    2011 Seat Ibiza 1.2

  7. #7
    Administrator Crasher's Avatar
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    If anyone tells you a laser pointer can carry a vertical tile grout line from one side of the room to the other, don’t believe them... if the room was built by Barrett and is on the ****...

    I have had problems with aftermarket sensors where the plug locks but the contacts don’t mate because the top of the socket is too high.
    "I disapprove of what you say, but I will defend to the death your right to say it"

    Evelyn Beatrice Hall (28 September 1868 13 April 1956)

  8. #8
    Junior Member fasteddie155's Avatar
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    Crasher once the bathrooms steamed up you cant see the lines lol.
    I have ordered a pressure switch and GSF said the the part they supplied was faulty and have refunded me.
    I bought another for 20 just cheap and cheerful to bridge the gap whilst GSF came back and like you said it doesn't clip on like it should.
    I am going to give it another go next weekend.
    Good luck with the bathroom mate
    My drive looks like a Vag forecourt;

    2009 Golf 2.0 TDI-CR CBDC
    2011 Polo mk5 1.2S
    2011 Seat Ibiza 1.2

  9. #9
    Administrator Crasher's Avatar
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    What did you change, the sump level/temp sender or the pressure switch?
    "I disapprove of what you say, but I will defend to the death your right to say it"

    Evelyn Beatrice Hall (28 September 1868 13 April 1956)

  10. #10
    Junior Member fasteddie155's Avatar
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    I changed the the sump level/temp sender and now ordered a new Hella one and a pressure switch to cover all bases.
    My drive looks like a Vag forecourt;

    2009 Golf 2.0 TDI-CR CBDC
    2011 Polo mk5 1.2S
    2011 Seat Ibiza 1.2

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