Model 3

Model 3 Auto Trunk installation

edited November -1 in Model 3
I finally received all the parts (struts, springs, washers) for the trunk mod on my Model 3 (LR-RWD). The installation video and parts list are on a Youtube video by i1Tesla. Once I figured out how to release the sockets on the struts, the install was easy. It does require a hard head or an assistant to support the trunk lid while the struts are off the car.

The mod works perfectly! The trunk pops open fast (probably the spring's push), but slows down as it approaches the open position.

My main concern was that, somehow, the release could be triggered while the car is moving. I tested it, and there is no way to actuate the lid unless the car is in park. I also tried to open the trunk with the FOB while the car was moving. The FOB won't do it either.

Way to go i1tesla !!
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Comments

  • edited February 2019
    syclone, good to know it works so well.

    Could you share on the source of purchase and prices you paid for the struts and the springs?
  • VCVC
    edited February 2019
    @syclone where did you get the parts? I tried Amazon recommended by i1Tesla but out of stock :(
  • edited February 2019
    same here. waiting for parts to be back in stock.
    OP did u get a chance to open the trunk when its raining?
  • edited February 2019
    @sumya: I'm in FL - it doesn't rain that often - I'll let you know.

    I originally ordered struts from Amazon, but then someone said they were availble from Wallmart for quite a bit less. They were in stock, so I ordered them. I ordered the springs from the Chinese company. That was about 3 weeks. I just checked - I can't find the struts on the Wallmart site. I will dig thru my receipts and come up with the Mfg email address. Maybe that will help.

    It probably would save a lot of time and agravation if one of the Tesla resellers came up with a kit, even at twice the price.
  • edited February 2019
    As I posted on the site before. I already had the trunk done awhile back. I got the struts for the rear trunk in within 2 days of ordering from Amazon, more than 2 weeks ago. Just got the springs in this afternoon from a Chinese seller, so I went ahead and installed everything. Not even 10 minutes for both sides.

    https://imgur.com/a/lqDTcsr
  • edited February 2019
    I also received my springs today and installed in less than ten minutes. Ordered the struts from Walmart because they had sold out on Amazon, they are sold out on Walmart also, but they actually came from Lift supports depot.


    https://www.liftsupportsdepot.com/strong-arm-4129-gas-charged-universal-lift-support/

    Lift supports is saying they will ship by 3/8/19 (almost a month backlog) but the spring will almost take that long.
    the spring came from UXCELL as listed on the i1tesla youtube took almost three weeks. the 3/8" washers I got at Lowes but instead of the stainless steel I used the 3/8 Hillman hardened washers(found in the stainless cabinet), they fit the springs better(a little bigger and thicker) I actually bought the stainless also but I worried about them holding up. The whole assembly works great.
  • edited February 2019
    Does it make closing the trunk noticeably harder?
  • edited February 2019
    On mine, it seems like it is slightly harder to close specifically right when it closes, I have to use a little more force, but not much. The trunk does not go as high, so that could make it easier or not depending how tall you are. As the video points out it may not be for everyone.
  • edited February 2019
    I have noticed some folks complain that the stock trunklid opening is too high. With this setup, the height is slightly lower. That might be good for some owners.

    As noted above, there does seem to be slightly more resistance with these struts on the trunk. It makes no difference to me, as it really doesn’t change anything with the closing process. The Frunk operation feels exactly the same as before.

    As I mentioned this is very convenient. It’s one of the best, most useful mods I’ve done on my car.
  • edited February 2019
    I ordered the same parts and installed as per instruction but my trunk doesn't open automatically as per video. The only difference is that I have a carbon fiber spoiler and the Model 3 Tailgate Closing Handle from RPM. I am surprised these extra weights would make a difference,
  • edited February 2019
    That’s interesting. Do you know about how much the spoiler weighs?
  • edited February 2019
    I would say they both weigh about 3 or 4 lbs.
  • edited February 2019
    Yeah, if they’re that heavy, I can see it making enough of a difference to cause what you described. I don’t know which struts would be adequate compensation for the extra weight. But if you can figure it out it’s still possible to have the auto open functionality.
  • edited February 2019
    Thanks! I just want to share these concerns with other Tesla M3 owners.
  • edited February 2019
    No. Thank you.

    I have the PD3+, and, like some others have been waiting for the Tesla spoiler to arrive, along with the badge.

    If the added weight is going to be an issue, I’m going to need to know what accommodations I’d have to make myself. I love this mod, and definitely want to keep it.
  • edited February 2019
    I also noticed that the final couple of inches are noticeably harder to close than the standard struts. I got down with my nose almost into the trunk and saw that this is the point where the spring are being compress

    Walmarts part description is "Strongarm 4129 universal. Lift support depot's is the same. Looks like the Walmart price is a little better than Lift Support Depot.

    This is the nicest, most practical mod I've done on my Tesla - Thanks again i1Tesla.

    I had forgotten to do a safety check on the trunk release using the iPhone. When the release button is pressed while Drive is engaged, the app asks if you are sure - when you say yes - absolutely nothing happens -perfect
  • VCVC
    edited February 2019
    @dkabq Thanks for the link!
  • edited February 2019
    I tried opening my trunk when I pulled into my garage and left a few inches between the garage door and the trunk.
    I have hurricane braces on my garage door and noticed that when the trunk is opened, it swings at at angle so the. bottom part of the trunklid protrudes out further as it swings up. If I didnt do anything it would have hit against the garage door.. Granted most people open the trunk when they are standing directly behing it so there would be room, but I needed to get out something out and didnt want to move the car up or open the garage door so I opened it while standing on the side of the car.
  • edited February 2019
    Interesting. I back into my garage. So the lid can pretty much go up as high as it wants and it wouldn’t matter because it would clear the door anyway. But the ceiling where the trunk lid opens is actually lower than the opened garage door height, even with my hurricane bracing, and it’s still nowhere close to touching.

    Now this mod does make the opened trunk lid height lower by a few inches, but it still doesn’t appear that it would come anywhere near it, even if it were several inches higher.

    https://imgur.com/a/KLojg3s
  • edited March 2019
    anyone have a link to the washers needed from lowes or home depot? are these them? are these the right 5/16 washers?
    https://www.homedepot.com/p/The-Hillman-Group-5-16-in-Stainless-Steel-Flat-Washer-15-Pack-2230/204785983
  • edited March 2019
    Does this alter the alignment in any way? I did the front struts and hate how it lifts the hood out of form. I need to take them off.
  • edited March 2019
    My front hood was lower than the body from factory. You are right that it lifts the frunk and it made mine perfectly flush. I would imagine if yours is flush already, it would make the hood higher than the side body.
  • edited March 2019
    It's been one month since I installed the auto-trunk mod. It still works perfectly. This was a, really, practical mod.

    Washers: Either a 3/4" or 7/8" washer with a 5/16" hole (stainless steel) works great. Right off the shelf at Lowes or Home Depot.
  • edited March 2019
    Do u know anyone in the Bay Area that could do this for me. I’m afraid to do it myself
  • edited November -1
    @lefty sorry not near Bay Area. But if you find someone, see if you can try it out before you install this on yours. It definitely works well to open, but it does make closing more difficult. You have to pull it down with some force, and then push down from the outside. The original solution allows you to simply pull down from the inside handle without touching. A shorter person may hate this solution too.
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