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  1. #1
    Senior Member Three Rings nickbischoff's Avatar
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    May 03 2011
    AZ Member #
    74983
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    East Bay, California

    DIY: Rear Seat Belt Tensioner

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    Over the years this forum has helped me out immensely so I figured it’s my turn to contribute to the DIY section. I just recently installed some recaro seats but got an airbag light. I reset everything but it was still there. I found out that 2008’s have a updated rear seat belt tensioner therefore requiring you to swap the one from your A4 over to your Recaro seat. So i guess this DIY only applies to those with a car from 2008 (unless the recaro seat is from a 2008 as well). I know there’s already pictures floating around out there but no actually DIY’s. I was very hesitant when doing this the first time even with those pictures and would have really liked a DIY to follow. I learned that not everything needed to be removed, so I figured I’d share that to save others the time and trouble. Anyways lets get on with it.

    Difficulty: 3/10
    Time required: 1-2hrs


    Tools needed:
    Variation of Plastic pry tools (could probably do it with just a flat head screw driver but these are very helpful and wont scuff the plastic parts)
    Flat head screw driver
    Philips screw driver
    Ratchet
    Small extension
    17mm socket
    T-15 Torx bit
    T-30 Torx bit
    Wire Cutters or scissors
    Rubber Mallet (not required but helpful)
    Zip ties



    Step 1: Remove your a4 seat from your car, follow this DIY if you need to.


    Step 2: I recommend starting with your A4 seat so that you’re familiar with the process before taking your nice recaro apart.

    Remove the 3 plastic covers that hold the headrest in (indicated in red) along with the seat belt cover.


    Use a plastic pry tool or screw driver and pry upward.


    For the seat belt cover I found its easiest if you pull the front up with your fingers and sticking your pry tool inside to maneuver it underneath the clip. Be patient with this one, it can be really stubborn sometimes.


    Once you’ve got it out slide the seatbelt through and put it aside.


    Step 3: Unscrew the 4 T-30 torx screws and remove the metal hooks (I believe this only applies to Avants not sedans)


    Step 4: Remove the release handle. There’s a T-15 torx screw on the top and a Philips screw on the inside.



    Once the 2 screws are removed lift up


    Step 5: We will know start removing the upholstery, this can be a bit scary but it’s actually very durable so don’t be shy with using a bit of muscle. Start off by pulling the two clips out from the release handle.

    The top one is the hardest, but wedge your pry tool in there and use a screw driver to pull it out.




    Step 6: Pry the plastic plug out from the seat, it’s on the side where the plug for the tensioner comes out. After that pull the wire through as well.




    Step 7: Gently slide the leather over the headrest posts, you only have to do the 3, the ones we took the caps off of earlier. Then pull the foam over the headrest posts as well.




    Step 8: We should now be able to fold half the seat over and expose our seat belt tensioner. Go ahead and cut the three zip ties before unbolting anything.


    Step 10: Grab your ratchet and 17mm socket with the extension. You’ll see a nut on the bottom of the tensioner and a bolt on the top, remove the nut first. Once the nut is removed loosen the top bolt and when you can, use your fingers to loosen it the rest of the way without removing it fully. Pay attention, this part is important and can save you a lot of time and frustration. With one hand put pressure where the seat belt comes out from the tensioner, our goal is not to allow the seatbelt to wind itself up. Remove the top bolt fully and maneuver the seatbelt out from the bracket. Then tape the seatbelt in a way so that it cannot wind itself up.


    For whatever reason when the seatbelt winds itself all the way up it will lock in place and make it very difficult for you to pull out enough slack later to be able to install it into the new recaro bracket. If this happens don’t freak out, just play with the seatbelt and try tugging at different angles until it feeds out enough slack.

    At this point you’ve got an idea how this process works and now just have to repeat the process on the recaro seat. Swap the tensioners, zip tie the cable in place and start putting everything back together.



    A few pointers for the parts that are a little difficult to put back.

    For the backing start with the corners and work your way around. Use your mallet or your palm to make sure everything clicks in place.

    With the release handle I found that it helps if you use a screw driver to lock the mechanism. Once locked, drop the release handle down on top of it, it should click in place. Pull the handle to make sure it works and screw it back together.


    For the 2 headrest covers that have the locking mechanism on it, go ahead and put the cap and springs in place, then slide the metal lock in.


    Now that you're done, go ahead and plug the recaro into your car, make sure that airbag light turns off and enjoy a beer
    CURRENT: 2001 S4 Avant | Nogaro Blue | 6spd | Stage 2

    PAST: 2008 A4 Avant TI | Ibis White | 6spd | JHM Stage 3
    2008 S5 | Meteor Grey | 6spd
    2001 Allroad | Highland Green | tip
    2007 A4 TI | Brilliant Black | 6spd

  2. #2
    Veteran Member Four Rings Andrew149's Avatar
    Join Date
    Apr 19 2009
    AZ Member #
    41417
    Location
    Modesto/CA

    Great Diy Nick! Can't wait to see the new Grille installed!

    Sent from my Moto X Pure.
    2012 Audi A6 3.0t
    2019 GTi 2.0t 6 speed
    2013 Touareg VR6

  3. #3
    Senior Member Three Rings nickbischoff's Avatar
    Join Date
    May 03 2011
    AZ Member #
    74983
    Location
    East Bay, California

    Quote Originally Posted by Andrew149 View Post
    Great Diy Nick! Can't wait to see the new Grille installed!

    Sent from my Moto X Pure.
    Thanks Andrew, the grille is on hold for now but I will get around to it when I find some time.
    CURRENT: 2001 S4 Avant | Nogaro Blue | 6spd | Stage 2

    PAST: 2008 A4 Avant TI | Ibis White | 6spd | JHM Stage 3
    2008 S5 | Meteor Grey | 6spd
    2001 Allroad | Highland Green | tip
    2007 A4 TI | Brilliant Black | 6spd

  4. #4
    Veteran Member Four Rings rhfosu's Avatar
    Join Date
    Jan 01 2015
    AZ Member #
    306948
    Location
    Alexandria, VA

    This is a great DIY. Helped me out today. Thanks!
    "I don't understand Audi enthusiasts. They buy a car that looks like a bar of soap, then they spend money modifying it so it looks slightly less like a bar of soap."

  5. #5
    Veteran Member Three Rings Deckster's Avatar
    Join Date
    Oct 08 2012
    AZ Member #
    101838
    Location
    Sacramento, CA

    DIY: Rear Seat Belt Tensioner

    I apologize for commenting on an old thread! I have a 2008 w/ the N198 code. Would you happen to know the part number for the seat belt tensioner?

    Thanks,
    Dex


    Sent from my iPhone using Tapatalk

  6. #6
    Established Member Two Rings
    Join Date
    Jul 15 2004
    AZ Member #
    2803
    Location
    San Diego, CA

    Bumping this thread as I need the part number for the 2008 tensioner as well. Bueller?


    Sent from my iPhone using Tapatalk

  7. #7
    Veteran Member Four Rings aluthman's Avatar
    Join Date
    Mar 24 2013
    AZ Member #
    111961
    Location
    Oakdale, CT

    IIRC the 2008 tensioner is different from 505.5-07. I don't have a part number for it, but if you look for partouts of 2008 A4s, you should be able to get one pretty cheap. No one wants to buy stock seats anyway.
    -Adam

    '07 DTM A4 2.0T|6MT|EFR 7163 Twin Scroll|DoTuning|Built Motor|Meth and other go fast stuff…
    '06 A4 2.0T Quattro - RIP (Best ¼ mile pass 13.634 @ 103.30)

  8. #8
    Established Member Two Rings
    Join Date
    Jul 15 2004
    AZ Member #
    2803
    Location
    San Diego, CA

    Still looking, anyone have one?


    Sent from my iPhone using Tapatalk

  9. #9
    Senior Member Two Rings
    Join Date
    Jul 11 2008
    AZ Member #
    30781
    Location
    Vail, Co

    I am also looking for either a part number for a 2008 A4 middle rear seatbelt ....anyone?

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