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  1. #1
    Active Member Two Rings
    Join Date
    Apr 25 2019
    AZ Member #
    477463
    Location
    Saas-Fee

    Rear door won't open from outside

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    Recently I have noticed that after unlocking the car one of my rear doors will no open from the outside. Once it is opened from the inside it then functions fine. Anyone have any ideas?

  2. #2
    Veteran Member Four Rings
    Join Date
    Mar 28 2016
    AZ Member #
    370916
    Location
    NY

    Sounds like the lock is stuck.

  3. #3
    Registered Member One Ring
    Join Date
    Aug 06 2017
    AZ Member #
    404458
    Location
    St. Petersburg

    Same thing just happened to me today. And, yes it seems like the lock is stuck. Has anyone else encountered this and if so, how did you fix it?


    Sent from my iPad using Tapatalk

  4. #4
    Established Member Two Rings Skynet3132's Avatar
    Join Date
    Jan 15 2019
    AZ Member #
    442735
    Location
    Phoenix, AZ

    same thing on my rear driver side door. have to pop it from the inside first, then works fine until its locked again. I was thinking it was the lock assy. taking a shit.
    @HAUDIYALL
    2019 SQ5 P+ » Ibis White » 034 Motorsport Stage 2
    2010 S4 P+ » Ice Silver » APR Stage 2 DP (sold)

  5. #5
    Veteran Member Four Rings Silver Streakin's Avatar
    Join Date
    Mar 05 2004
    AZ Member #
    1097
    My Garage
    B8 S4, 17 Expedition EL, 2009 328ix coupe
    Location
    NoVA

    BTDT.

    It's the lock actuator. There are a couple parts cars in the classifieds. Should be able to get one for $40-50 or less since there are more cars out there than when I replaced my drivers rear. It seems to be common.

    Watch this video for how to remove the door panel. He does a really nice job of showing you the orientation of the clips. I recommend doing this in a warm garage so you don't break any plastic for the CF/al trim and handle trim. If you don't have them, get the plastic removal tools. Cheap set at Harbor Freight.




    From there, take the triangle plastic access panel off. Then unscrew the actuator from the outside edge of the door with a torx, unplug the harness, unhook it from the lock. My issue was reaching it to pull it out. Thankfully, wifey has small hands and got it out.
    2011 S4, 6M, BB/panda, Sport diff, ADS, B&O | UniTronic stage 3 Dual Pulley | MercRacing HX | RocEuro intake | AWE Track & DPs resonated | H&R c/o w/Bilstein B8 rears| 19" VMR 710 & 19" Peelers | 034 trans insert | AK brace | CR15 bar | DEVAL CF Diffuser

    SOLD 2007 S4 DTM, Phantom Black Pearl, manual | JHM | FI | H&R | VMR | 034

    RIP 2001.5 A4 1.8TQMS, Silver/Ebony | APR stage 3 | STaSIS Tracksports | StopTechs

    SOLD 1995 90

  6. #6
    Senior Member Three Rings
    Join Date
    Dec 19 2004
    AZ Member #
    4558
    Location
    NJ

    Same thing happened to my rear passenger door. The lock mechanism needed to be replaced.

    Cross reference the part numbers. They are the same as a Porsche Macan and the cost was much less (almost 1/2) of the Audi part.

    If you let it go too long, you won't be able to open from the inside either, then you're screwed. Happened to me and it took dozens of tries until it opened.

    Edit: just found the order for the part - Door Latch Assembly. Door Lock Actuator Motor. Lock. LOCK ACTUATOR. . Rear Right 8K0839016G $110.83
    2011 B8 S4 | EPL Stage 2 | KW H.A.S. | APR Stage 1 & 2 Carbonio Intake | Borla Exhaust | Eurocode Alu Kreuz | Eurocode ÜSS Stabilizer Bars and End Links | 034 Motorsport Trans Mount Insert | Spulen Rear Differential Mount | Hartman RS 4 Wheels

  7. #7
    Veteran Member Three Rings Allan691's Avatar
    Join Date
    Jul 23 2018
    AZ Member #
    422941
    Location
    Vicenza, Italy

    Thanks Silver Streakin and Cooper993 ! And thanks OP because this has been randomly occuring to me too.. Just enough to annoy me but not enough to make me research and fix.. Now maybe.. especially of that warning of it failing from the inside too!
    2009 Euro-spec Black Optics S4 Avant APR Stage 2 APR SC pulley + JHM187 with APR Open Air Intake • CR-15 + AK + Eurocode USS + Diff + Trans inserts • P3

  8. #8
    Veteran Member Four Rings rcprato's Avatar
    Join Date
    Jan 30 2018
    AZ Member #
    413222
    My Garage
    21 Jeep Grand Cherokee Overland
    Location
    Rochester, NY

    A month ago this started happening on RF door and yesterday the driver door started not unlocking and opening with outside handle, I guess my Xmas present to myself is 2 new door lock actuators......
    Another one of those parts Audi engineers didn’t think had to last more than 5 years

  9. #9
    Veteran Member Three Rings Allan691's Avatar
    Join Date
    Jul 23 2018
    AZ Member #
    422941
    Location
    Vicenza, Italy

    Quote Originally Posted by rcprato View Post
    ...
    Another one of those parts Audi engineers didn’t think had to last more than 5 years
    And they don’t make it easy to replace either!
    2009 Euro-spec Black Optics S4 Avant APR Stage 2 APR SC pulley + JHM187 with APR Open Air Intake • CR-15 + AK + Eurocode USS + Diff + Trans inserts • P3

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