OzRob
Posts: 9
Joined: Thu Dec 14, 2017 10:41 pm
Location: Sydney Australia

Under trunk cubby

Thu Dec 14, 2017 10:49 pm

Hi! I’m a new member! I have a 2018 i3s on order for delivery here in Sydney in a few weeks time and, as a retired auto engineer (GM then Ford) and competent CAD designer/3D modeler I have a plan to improve the trunk space.
I’m not getting the REX version so there’s heaps of space under that floor in the trunk. I’m gonna undo the cover and design/make a plastic trunk extension, accessible when the carpet is lifted. Probably need a harder cover over the space to support the luggage above. Don’t worry! The new part WILL seal!
My questions are “has anyone done this before? If not, why not? And once I’ve done it, would there be a market for me to sell this part to other non-REXers?”
Thanks

I33t
Posts: 894
Joined: Fri Dec 13, 2013 3:01 pm
Location: Australia

Re: Under trunk cubby

Thu Dec 14, 2017 11:10 pm

Hey, that sounds like a good idea.

Interested to hear what it will be made from. Will it be insulated for hot/cold climate, and how easy would it be to install?
2014 BMW i3 BEV deposit placed 19th Dec 2013
Delivered in Melbourne 4/12/2014. Arrived locally 11/12/14, with 24km on the clock.

alohart
Posts: 2125
Joined: Sat Nov 01, 2014 7:36 pm
Location: Honolulu, HI

Re: Under trunk cubby

Thu Dec 14, 2017 11:12 pm

Such a modification has been proposed by several BEV owners since 2014, but I'm not aware of this modification having ever been implemented. I've been interested in this myself, but I'm not certain that the cubby size would be worth the effort and expense. Designing convenient access to this cubby might be challenging as well. With the trunk floor removed, I also drooled over the space available where the REx muffler would be, but accessing that space would be even more challenging.

Keep us informed about your progress. Good luck!
Aloha,
Art

2014 BMW i3 Arravani Grey, Giga World, Tech + Driving Assist, Parking Assist, DC Fast Charging, JuiceBox EVSE

benjanos
Posts: 11
Joined: Sat Sep 23, 2017 10:30 am

Re: Under trunk cubby

Fri Dec 15, 2017 4:41 am

Hi Oz Rob,

I will buy one of these off you immediately. I've been thinking about it for a while but have no skills to create one, it would be great huh.

Only thing I ever found on the internet about it was this article https://bmwi3owner.com/2014/02/heat-pump-in-front/

If you do manage to produce a few PLEASE let me know.

Cheers
2014 BEV

jadnashuanh
Posts: 5037
Joined: Thu May 22, 2014 2:07 pm
Location: Nashua, NH USA

Re: Under trunk cubby

Fri Dec 15, 2017 11:17 am

Sounds like a useful enhancement, depending on the cost and complexity of installation. Shipping from Australia could get expensive, though!
Jim DeBruycker
2011 535i x-drive GT, 2014 i3 BEV
Soon (hopefully!) A 2021 X5 45e will replace the above

imolazhp
Posts: 244
Joined: Sat Mar 28, 2015 8:02 pm

Re: Under trunk cubby

Thu Dec 21, 2017 10:44 am

A guy on the i3 FB group made a subwoofer enclosure for the space, he shared the drawings. I would start there if I were you. I hope to do the same (sub enclosure) at some point in the future. Keep us posted.

Hypermiler
Posts: 5
Joined: Mon Jan 09, 2017 12:27 pm

Re: Under trunk cubby

Fri Dec 29, 2017 11:16 am

There is a rather professional version made by a German

https://www.goingelectric.de/forum/bmw- ... 7-290.html

Page 30, or write to

wolfgang.kern@wokeby.de

alohart
Posts: 2125
Joined: Sat Nov 01, 2014 7:36 pm
Location: Honolulu, HI

Re: Under trunk cubby

Fri Dec 29, 2017 12:11 pm

Hypermiler wrote:There is a rather professional version made by a German
That looks really nice. An English description can be found here.

However, it appears that the only cover over the storage boxes would be the carpeting and its backing. If so, placing anything heavy on the carpet over the storage boxes could be a problem.

I like to support quality products like this, but the shipping cost halfway around the world to Honolulu would be prohibitive. When I think about how we use our i3, I really don't need the additional storage very often, so I don't plan to order this product.
Aloha,
Art

2014 BMW i3 Arravani Grey, Giga World, Tech + Driving Assist, Parking Assist, DC Fast Charging, JuiceBox EVSE

I33t
Posts: 894
Joined: Fri Dec 13, 2013 3:01 pm
Location: Australia

Re: Under trunk cubby

Fri Dec 29, 2017 8:53 pm

The price from Germany for that item is AU$650 plus freight! Given the size, bet the shipping cost is huge.

Nice design except the lack of info about the support below the carpet.

Hopefully OzRob comes up with a better and more economical solution.
2014 BMW i3 BEV deposit placed 19th Dec 2013
Delivered in Melbourne 4/12/2014. Arrived locally 11/12/14, with 24km on the clock.

alohart
Posts: 2125
Joined: Sat Nov 01, 2014 7:36 pm
Location: Honolulu, HI

Re: Under trunk cubby

Sat Dec 30, 2017 3:18 pm

I33t wrote:Nice design except the lack of info about the support below the carpet.
Another German i3 owner has built a solution that is less expensive (not all welded stainless steel) and has a proper cover that makes accessing the extra storage space much easier. If I could read German, I would read through the very long thread discussing designs for additional BEV storage because there are likely some pretty good ideas discussed.
Aloha,
Art

2014 BMW i3 Arravani Grey, Giga World, Tech + Driving Assist, Parking Assist, DC Fast Charging, JuiceBox EVSE

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