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Thread: Door Lock Actuator Latch

  1. #1
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    Door Lock Actuator Latch

    Hi
    My three Door Lock Actuator Latch stop working from remote control (can not unlock 3 doors).
    I can unlock from inside the car by hand only and after that is working until I lock them again.

    Try to find it on E-bay, but there is a lot of different parts number:
    Front Right - 3C1 837 016 A (B) - 8J1 837 016 A - 3CD 837 016 - all is 7-pins
    Rear Left - 8KO 839 015 - 3C4 839 015 A (B-C-D) - 3CD 839 015 - all is 8-pins
    Rear right - 8KO 869 016 A (B-C-D-E-F) - 3C4 839 016 A (B-C-D) - 3CD 839 016 - all is 7-pins

    I am confusing about the first 3 letters and numbers and also about the following letter at the end (A,B,C...)

    Any help, please.
    Thanks

    My car is VW Passat wagon R36 2009
    R36 > MK5 2006 1.9 TDI > MK4 2003 1.6 Generation > MK3 1995 2.8 VR6 > MK2 1990 1.6 > MK1 1982 1.8 GTI

  2. #2
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    Front
    3C2 837 015 A Door lock left - rhd
    3C2 837 016 A Door lock right - rhd

    Rear
    3C4 839 015 A Door lock left
    3C4 839 016 A Door lock right
    2011 Skoda Octavia vRS TDI DSG wagon|Revo Stage 1|Race Blue|Leather|Dynamic Xenons w 6000K|9w7 BT|THA475 Amp+active sub|Whiteline ALK|RVC|
    2009 R36 wagon|Biscay Blue|RVC|Tailgate|ECU and DSG tune|LED DRL/Indicators|3D colour cluster|Quad LED tail rings|Climatronics upgrade|Dynaudio retrofit|B7 RLine Flat Steering Wheel|3AA CCM|TPMS Direct|B7 Adaptive Cruise with Front Assist|Discover Media retrofit|PLA 2.0|Lane Assist|BCM retrofit|High Beam Assist|DQ500

  3. #3
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    Thanks.
    Do you have any info on what is different between the first 3 letters/numbers - 3C2/3C1/3CD/8KO...
    Last edited by VW VR6; 22-09-2021 at 11:57 AM.
    R36 > MK5 2006 1.9 TDI > MK4 2003 1.6 Generation > MK3 1995 2.8 VR6 > MK2 1990 1.6 > MK1 1982 1.8 GTI

  4. #4
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    It means its for a different car.
    3Cx is B6 Passat (x=variant)
    8Kx is Audi A4 B8 etc
    I can't comment on cross compatibility. If it's a different part number it generally means its a different part unless it's a supercession part. ETKA did not list any supercession part numbers for those listed above.
    2011 Skoda Octavia vRS TDI DSG wagon|Revo Stage 1|Race Blue|Leather|Dynamic Xenons w 6000K|9w7 BT|THA475 Amp+active sub|Whiteline ALK|RVC|
    2009 R36 wagon|Biscay Blue|RVC|Tailgate|ECU and DSG tune|LED DRL/Indicators|3D colour cluster|Quad LED tail rings|Climatronics upgrade|Dynaudio retrofit|B7 RLine Flat Steering Wheel|3AA CCM|TPMS Direct|B7 Adaptive Cruise with Front Assist|Discover Media retrofit|PLA 2.0|Lane Assist|BCM retrofit|High Beam Assist|DQ500

  5. #5
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    Thank you so much Kamold.
    R36 > MK5 2006 1.9 TDI > MK4 2003 1.6 Generation > MK3 1995 2.8 VR6 > MK2 1990 1.6 > MK1 1982 1.8 GTI

  6. #6
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    Just had the same issue..

    Can open the rear passenger door from inside then outside afterwards but once locked with the remote, I can't open the door from outside unless I do it by hand from inside first..

    I have a B7 Passat.

    Sent from my SM-N950F using Tapatalk
    MY11 B7 Passat 125TDi Highline
    Pearl Mocca Anthracite | Electric and Heated Leather | Folding Mirrors | Sunroof | Adaptive Lighting Package | Footwell Lighting | Park Assist 2 | Lane Assist | RNS510 | R36 Pedals | Scirocco MFSW | Front Lip | 20" Suzuka Wheels | H&R Springs | De-Badged | VCDS Mods | Alpine Mono and 8" Subwoofer

  7. #7
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    I here door lock actuator is a common problem with all VW.
    R36 > MK5 2006 1.9 TDI > MK4 2003 1.6 Generation > MK3 1995 2.8 VR6 > MK2 1990 1.6 > MK1 1982 1.8 GTI

  8. #8
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    Could you please let me know once you swap the actuator if it resolves the problem

    Sent from my SM-N950F using Tapatalk
    MY11 B7 Passat 125TDi Highline
    Pearl Mocca Anthracite | Electric and Heated Leather | Folding Mirrors | Sunroof | Adaptive Lighting Package | Footwell Lighting | Park Assist 2 | Lane Assist | RNS510 | R36 Pedals | Scirocco MFSW | Front Lip | 20" Suzuka Wheels | H&R Springs | De-Badged | VCDS Mods | Alpine Mono and 8" Subwoofer

  9. #9
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    I will no problem. But first I will try to fix the rear left and right.
    R36 > MK5 2006 1.9 TDI > MK4 2003 1.6 Generation > MK3 1995 2.8 VR6 > MK2 1990 1.6 > MK1 1982 1.8 GTI

  10. #10
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    Update:
    Rear left part no. 8KO 839 015 - 7 pins (E-bay $62.29) FIXED
    Rear right part no. 8KO 839 016 - 7 pins (E-bay $67.00) FIXED
    Front right part no. CZ 3C2 837 016A - 9 pins (Local wrecker $65.00) FIXED

    Once more THANKS to all members of the forum who helped me.
    R36 > MK5 2006 1.9 TDI > MK4 2003 1.6 Generation > MK3 1995 2.8 VR6 > MK2 1990 1.6 > MK1 1982 1.8 GTI

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