Automatic Model 3 trunk open/close

Spiffywerks

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#1
So I saw this pop up on Reddit. I wish Tesla had just added this to the car. Bless the Chinese for making this happen. Although at $600 to a Chinese seller, I don’t want to be a Guinea pig. Lol

Very awesome if this works well. Looks like it doesn’t work from the console for closing. But other features do. I’m sure it’s intercepting the latch signal and activating the lift hardware.

 

Tombolian

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#2
This is my wife's single biggest complaint about the car. I'll be your guinea pig. Are they doing this in the states? Sign me up!
 
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#3
This is literally my only complaint about the car - I would gladly pay $600. PLEASE TAKE MY MONEY 💰💰💰💰
 

MacInfoSys

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#5
Here is the instructions they sent me. It is not final version and they are supposed to send me another updated instructions soon. I have not purchased it myself and I was curious what would happen with future firmware upgrades or if there is an electrical issue that has no connection to the add on piece for the auto trunk. If Tesla would wash their hands from any warranty work if I had this installed.
 

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PLUR

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#8
Looks great..the installation pdf process is looks to be a daunting task though (a video to cover the whole process would be helpful)
 

MacInfoSys

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#9
No I have not ordered it. I am waiting on the installation video that is supposed to be available within the day.

I am also concerned in the amount of work that will go into the installation process. I am wanting to know how much wire is still visible after the installation. Where are the modules stored / mounted ? I do not like rattles and extra noise that might come with taking a car apart or having parts that move around. So I am very curious on a visual install with more detail.
 

Mysta

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#10
No I have not ordered it. I am waiting on the installation video that is supposed to be available within the day.

I am also concerned in the amount of work that will go into the installation process. I am wanting to know how much wire is still visible after the installation. Where are the modules stored / mounted ? I do not like rattles and extra noise that might come with taking a car apart or having parts that move around. So I am very curious on a visual install with more detail.
Yeah I just saw that link you posted to install guide, pretty intense.
 

Spiffywerks

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#11
The instructions don't actually seem that bad. They are long because they provide 2-3 options on running wires to where you need them. From what I see, there are only 3 line taps. The rest of the system is replacement parts (locking mechanism, shocks), and they use premade connectors for putting it all together. Seems like a fairly well-made kit. I'm interested in seeing the results!
 

JWardell

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#12
Here is the instructions they sent me. It is not final version and they are supposed to send me another updated instructions soon. I have not purchased it myself and I was curious what would happen with future firmware upgrades or if there is an electrical issue that has no connection to the add on piece for the auto trunk. If Tesla would wash their hands from any warranty work if I had this installed.
Fairly involved install and lots of wires to tap including to my surprise CAN network. It's more than I would want to modify at least for a car still under warranty. The foot sensor is what really makes this worth it. Very slick they use the Tesla controls.
I don't really have issues opening or closing the stock trunk though. It's the frunk that I completely avoid because it can't be closed with a handle. I still want a self-closing frunk. Hopefully they offer it (ands the wiring should be simpler).
 

MacInfoSys

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#13
I chatted with them earlier and the replacement shocks are a couple of mm shorter so the opening would also be a tad shorter. I am sure not by much though. I think the video instructions is going to help understand placement of parts since the modules still need to be placed / mounted somewhere also. I am not a fan of implementing this especially at that price point when no one in the US can showcase this solution or talk about it's process. Even though it has a 20A fuze I am still concerned with tapping the car's electrical system especially the CAN network with no one else feedback and if there would be any negative results because of it.
 

chiapet15

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#14
I also wish Tesla had included automatic closing rear trunk and frunk, which is standard on cars in this price range. However, it's precisely because it's standard (and they can't charge more for it) on all other cars that they didn't include it. When you subtract out the regulatory credits that they sold in this most recent quarter, true automotive gross margins (from selling the cars and services, ie. the core business operations) were a paltry 10% (compare that to Porsche where their margins are easily 50%+ on base models). You can see this as us getting a great deal, in that we are getting these cars pretty much at their cost. So if they were to add in automatic closing rear tailgate and frunk, they stand to make even less of a profit.
 

TrevP

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#15
It's not an easy retrofit, especially if you want it to look OEM. I wonder how the car will take to it being tapped into the front battery like that, we all know the dashcam situation drain but perhaps this isn't an issue. Personally I'd tap into the VCF controller as it's easier and provides constant 12V power.

In any case, if you're desperate and have $600 burning a hole in your pocket this looks like a fun project. If @Tesla Offer wants to send me one to review and a i can find a guinea pig I'll install it
 

barjohn

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#16
I thought you all might enjoy seeing an installed version of the newly available Tesla Model 3 electric lift gate setup with soft close feature. This kit is available from Teslaoffers.com in Hong Kong and may soon be available from RPMTesla.comin CA. including installations for Southern California. I installed this yesterday doing the majority of the work myself with some help from Mark at RPM Tesla on some of the trickier hard parts. As I state in the video, this is not what I would call a beginners project. As a result of my installation yesterday and my feedback to the manufacturer, they are making a few mods that will make it easier in the future. Nonetheless, I would happily pay someone $300 to have them do it if I had to do it again. There is a fair amount of disassembly and reassembly of the vehicle required.

In the trunk you need to remove the deck lid cover, the piece along the bottom, both tail lights, the trim piece under the rear deck and moving the carpeting down out of the way.
You will need to open the drivers side footwell panel and unsnap some of the side channel covers to run wiring. Current installation requires you to do this to both sides of the vehicle.
The harder part is getting two cables with connectors from the lower trunk area up to the closing deck lid. I have tested it with the Tesla App, Remote S and Status and it worked well to open and close the trunk. It also works from the trunk handle and closing via the button. If you have any questions feel free to ask. The video is not the greatest but I rarely use video so I am a NOOB.
 

MelindaV

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#17
Thanks @barjohn for sharing your install info! @Spiffywerks had commented earlier that a video (from the manufacturer) would be great to have in addition to the instructions. was there anything you and RPM came across in their instructions that didnt work and needed to figure out what needed to be done?
 

Perscitus

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#18
Thx for sharing. There was some discussion about this on here a week or two ago (I see your one-off thread was just merged with that one)
with links to the demo video done in HK on HK-delivered Model 3s.

Assuming yours intercepts the trunk latch release actuator signal and hence opens via the app? How do you initiate an auto-close?
 

Mysta

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#19
Thx for sharing. There was some discussion about this on here a week or two ago (I see your one-off thread was just merged with that one)
with links to the demo video done in HK on HK-delivered Model 3s.

Assuming yours intercepts the trunk latch release actuator signal and hence opens via the app? How do you initiate an auto-close?
Looks like same button, so just recognizes that it's already open.
 

barjohn

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#20
I spent a good deal of time reviewing and providing feedback to TeslaOffers on the installation manual and the videos. As a result, I have seen clips of yet to be published videos that would help make the installation easier. I and they also learned the hard way that leaving the connectors on the cables that go from the control module to the upper trunk lid via the corrugated rubber tube was a mistake. I finally got both cables with connectors through but it was two hours of tedious and difficult work with a few swear words thrown in for good measure. They suggested cutting off the connectors and then reattaching them which would have made it a lot easier but I did't have everything I would need to do that with me and set out to get a wire pull through the tube and then to pull the wires. There are numerous thing you have to do to attempt doing this.

On everything but the car monitor the same button used for open works to close the trunk. Inside the car, Tesla disables the button when the trunk is open.

Where to place the module and more importantly where to place the closing mechanism motor is the bigger challenge. I can't say I found the perfect way yet. The motor has a couple of mount holes but I haven't found anything I could mount them on. The module is small and light but finding a flat surface is difficult. Finally, you will have a lot of cable left for everything but power so tidying this up can be challenge too. I think I did ok on that part.
 
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