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

Auto Dimming Interior Lights

Discussion in 'A3/S3/Sportback (8P Chassis)' started by Badley, May 18, 2007.

  1. Badley
    Offline

    Badley Member

    Joined:
    Mar 3, 2007
    Messages:
    82
    Likes Received:
    0
    [May 18, 2007]
    I've been umming and Erring over this since I got my car.

    When the lights are OFF, the stereo and DIS backlight brightness varies depending whether the sun is shining directly onto the dash from behind.

    My question, where is the sensor?
    #1
  2. Ads

    Ads

    [Sep 17, 2014]

  3. SamDude
    Offline

    SamDude Active Member

    Joined:
    Jan 19, 2007
    Messages:
    2,102
    Likes Received:
    2
    [May 18, 2007]
    Maybe it uses the same sensor as your dimming mirror?
    #2
  4. Badley
    Offline

    Badley Member

    Joined:
    Mar 3, 2007
    Messages:
    82
    Likes Received:
    0
    [May 18, 2007]
    I dont have Auto Dimming Mirror
    #3
  5. SamDude
    Offline

    SamDude Active Member

    Joined:
    Jan 19, 2007
    Messages:
    2,102
    Likes Received:
    2
    [May 18, 2007]
    scuppered...
    #4
  6. renfrew
    Offline

    renfrew Member

    Joined:
    Jan 25, 2005
    Messages:
    41
    Likes Received:
    0
    [May 18, 2007]
    I *think* it uses the same sunlight sensor as the climate control. In other words, the left-hand dark plastic bump on top of the dashboard underneath the front windscreen, not the one with the alarm LED.
    #5
  7. RobinA3
    Offline

    RobinA3 Well-Known Member

    Joined:
    Aug 11, 2005
    Messages:
    1,783
    Likes Received:
    25
    [May 18, 2007]
    I might be wrong but i think the sensor is located in the middle of the dash near the windscreen.
    #6
  8. RobinA3
    Offline

    RobinA3 Well-Known Member

    Joined:
    Aug 11, 2005
    Messages:
    1,783
    Likes Received:
    25
  9. Badley
    Offline

    Badley Member

    Joined:
    Mar 3, 2007
    Messages:
    82
    Likes Received:
    0
    [May 18, 2007]
    Yeah I thought that to, but when driving its hard to reach over an cover it when the sun coms out.

    Worth a try though, Thanks folks
    #8
  10. h5djr
    Online

    h5djr Well-Known Member VCDS Map User

    Joined:
    Jan 23, 2003
    Messages:
    7,516
    Likes Received:
    569
    [May 18, 2007]
    I have just had a look at my copy of the Audi parts catalogue and I can confirm that the Sun Sensor is in fact the the left-hand dark plastic bump on top of the dashboard underneath the front windscreen. The one without the alarm LED.
    #9
  11. JamS3
    Offline

    JamS3 Active Member

    Joined:
    Jun 17, 2003
    Messages:
    2,257
    Likes Received:
    12
    [May 19, 2007]
    No its not!

    The sensor is on the speedometer on the bottom right side just underneath the 180mph mark on mine.

    Shine a light onto this and the brightness increases, hold your hand over it and it dims down.

    This also controls the brightness of the RNS-E screen too.
    #10
  12. JamS3
    Offline

    JamS3 Active Member

    Joined:
    Jun 17, 2003
    Messages:
    2,257
    Likes Received:
    12
    [May 19, 2007]

    That sensor is for the climate control to sense how much sunlight is coming into the car for the temperature to be regulated automatically.
    #11
  13. Badley
    Offline

    Badley Member

    Joined:
    Mar 3, 2007
    Messages:
    82
    Likes Received:
    0
    [May 20, 2007]
    I thought it might be something else when I shone my torch the climate sensor and nothing happened.

    Thanks for that JamS3
    #12
  14. Plank
    Offline

    Plank Member

    Joined:
    Mar 26, 2007
    Messages:
    78
    Likes Received:
    0
    [May 21, 2007]
    Yep - as above, the one for the brightness is on the speedo.

    The one on the dash is for climate control calculations.
    #13
  15. kninio
    Offline

    kninio Member

    Joined:
    Oct 12, 2005
    Messages:
    96
    Likes Received:
    0
    [Aug 3, 2007]
    if you have audi concert two , then the sensor is on both side of the cd mouth , two small points hide them with ur fingers and it will be darker , spot a light at them and it will be bloody red.
    #14

Share This Page