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  1. #1
    Active Member Two Rings
    Join Date
    May 29 2017
    AZ Member #
    400266
    Location
    LI NY

    Changing from D1S Xenon to H7 LED questions

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    Hi everyone, so my backstory is that my left xenon bulb died the other day, and I planned on replacing it. But I am thinking of just getting replacement h7 socket housings because my current housing is in pretty bad condition and put LED bulbs in it. Is this possible and I won't get any errors (besides the headlight dipping error)?

    Is there anything I should consider?

    Thanks!

  2. #2
    Veteran Member Four Rings
    Join Date
    Feb 17 2004
    AZ Member #
    607
    Location
    Liberty Hill, TX

    you can easily replace your xenon headlight housings with H7 halogen ones, pull the fuse for the auto-level system, and everything will work correctly. You could even replace just the projectors in your xenon housings and keep the auto-level system intact. I can't say that the light output from the H7 LED units would be better or worse than a properly functioning D1S setup though.
    2012 TT-RS | Sepang/Ebony
    2014 Allroad | Glacier/Ebony (sold and bought back)

    Sold: 2007 RS4 | Sprint/Ebony

    RIP 2002 A4 2.0TQM Denim/Ebony, 243k
    FWD->AWD, Bische-tuned GT2871R

  3. #3
    Veteran Member Four Rings CyberPMG's Avatar
    Join Date
    Feb 23 2004
    AZ Member #
    806
    My Garage
    2004 A4 1.8T Ultrasport 6MQ
    Location
    Stow, OH

    To avoid any bulb warnings, make sure the LED bulb you get includes a 35W driver. Then you won't have any issues. Keep in mind when selecting a LED bulb to check the lumen rating and not just the color temperature. To be equivalent to the light output of a Xenon bulb, the LED bulb will need to produce 3200-3600 lumens.
    USP CLUB MEMBER #34

    2004 A4 1.8T USP - GT2871R Eliminator - Motoza program - Over 375k miles!
    2015 S5 - Sepang Blue - 6spd w/ Sport Diff - stock(ish)

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