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| D3 - Lights Headlights, xenons, foglights. Everything outside the car that glows |
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Thread Tools | Display Modes |
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#1
17th July 2016, 07:54 AM
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Auto lights
Having an issue with auto headlight activation. I have to manually switch them on and off. In auto setting they remain permenantly off ( no matter what the light levels )
No error codes anywhere.. Yet the dash backlights will brighten and dim according to ambient light. Fuses all ok too. So I was thinking light sensor in the mirror housing but confused that the dash backlights are responding to the levels of ambient light? Any ideas?
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2012 A6 3.0 TDI Avant, Silver, 7 Spd STronic, Bose, ACC, Advanced Parking Camera, Power close / open tailgate, Side and Lane Assist, AMI & Jukebox, Adaptive lights with corner and high beam assist, Through load with ski bag, Audi pre sense plus, sports diff and sport suspension, Panoramic roof, Storage pack, MMI touchpad and VIM, etc. Oh and now retro fit rear seat entertainment  2019 BMW I3. Heat pump, Winter, professional and comfort packs, Harmon Kardon, autopilot 2022 Mercedes EQC 400 Previously: 2009 S8, Silver, B&O, Ceramic Brakes, Advanced Parking Camera, VCDS 2008 A8 3.0 Tdi sport, B&O 
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#2
17th July 2016, 10:42 PM
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The dash lights respond to ambient light anyway as there is a sensor in the instrument cluster for them.
If the auto activation only has died, I would be replacing the switch and seeing if that is the problem. It is easy to remove, just look for video instructions for removing any VAG headlight switch. Mike
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 04 A8 - 4.2 Sport Indigo Leather Sports Seats - Sports wheel - Sports Air Suspension Auto Boot - Double Glazing - AMI - Solar roof TV - Bose - Voice Control - TPMS - AFS- TINT Power Blind, Fingerprint - Light package (in and out) Retrofits: OEM Auto headlights & rain sensing wipers OEM Bluetooth phone Bluetooth Audio Streaming Reverse Camera OEM Aluminium Package Auto boot close using remote/door button
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#3
18th July 2016, 08:29 PM
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Yes, switch sounds a good place to start - Also try switching it each way aggressively if not change, take the switch apart and clean it with a tissue and some alcohol before replacing - there's not much to go wrong.
Last edited by snapdragon; 18th July 2016 at 08:35 PM.
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#4
21st July 2016, 09:03 AM
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Quote:
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Linear Mode
