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by SuperPoly
Mon Apr 25, 2022 8:43 am
Forum: General / Main i3 Owners Forum
Topic: How to Deliberately Lose Battery Capacity
Replies: 15
Views: 3967

Re: How to Deliberately Lose Battery Capacity

The opposite of what would be good for the battery: Fast charge only Store at low state of charge when not using Drive it as hard as you can Maybe tow something heavy and repeatedly fast charge This reminds me of the Simpsons episode “King-size Homer” :) It’s unfortunate that they don’t offer a gran...
by SuperPoly
Sun Apr 10, 2022 9:27 am
Forum: General / Main i3 Owners Forum
Topic: Soundproofing to reduce road noise and boominess?
Replies: 1
Views: 1595

Soundproofing to reduce road noise and boominess?

I find a lot of the sounds in the i3 to be "too much" when driving over rough surfaces or at highway speed. Has anyone attempted to add soundproofing material (mass-loaded vinyl) to the doors, or other areas? One other thought to reduce boominess over bumpy roads was to add butyl sound dea...
by SuperPoly
Thu Mar 10, 2022 1:04 pm
Forum: General / Main i3 Owners Forum
Topic: Broke side mirror glass - which replacement part?
Replies: 3
Views: 1447

Broke side mirror glass - which replacement part?

Hi all, 2017 Terra REx, all packages, 4/17 build. I broke the passenger side mirror glass and am having a difficult time find the exact (or a suitable) part. https://www.realoem.com/bmw/enUS/showparts?id=1Z63-USA-04-2016-I01-BMW_i-i3_94Ah&diagId=51_9184 This part looks correct, while FCP Euro an...
by SuperPoly
Sun Mar 06, 2022 4:01 pm
Forum: Modifications & Accessories
Topic: Transforming i3 into a vault
Replies: 7
Views: 6629

Re: Transforming i3 into a vault

@Electronchaser

thank you for this write up!

How did it work out? I would love to hear more about the result and the process. I agree that a lot of noise seems to come from the sides of the car (including wind, and electric motor whine).
by SuperPoly
Fri Feb 25, 2022 12:01 pm
Forum: General / Main i3 Owners Forum
Topic: Sound proofing the motor sound?
Replies: 14
Views: 5410

Re: Sound proofing the motor sound?

Thank your for your thoughts frictioncircle! I am attempting to find a shop that can apply the sound absorption. I also tried filling the cargo area with soft sound dampening material and other odds and ends to occupy the available space. That seemed to help marginally. Interestingly, the sound is s...
by SuperPoly
Thu Feb 24, 2022 2:51 pm
Forum: Buying the BMW i3
Topic: Regen braking question on newer models (2017+) and quidzel?
Replies: 8
Views: 2203

Re: Regen braking question on newer models (2017+) and quidzel?

Regarding the traction control, the system was upgraded for the 2018 model year. It's quicker to react and no longer has those issues.
by SuperPoly
Fri Feb 18, 2022 10:38 am
Forum: General / Main i3 Owners Forum
Topic: Sound proofing the motor sound?
Replies: 14
Views: 5410

Re: Sound proofing the motor sound?

frictioncircle wrote: Thu Feb 17, 2022 2:25 am SuperPoly –

From your most recent post it sounds like you ended up purchasing an i3 – congratulations!

To help us diagnose your noise concern, what year and powertrain is your i3?
Thank you! It is a 2017 REx model. I have had it for a few months now.
by SuperPoly
Tue Feb 15, 2022 12:14 am
Forum: General / Main i3 Owners Forum
Topic: Sound proofing the motor sound?
Replies: 14
Views: 5410

Re: Sound proofing the motor sound?

Has anyone noticed a NVH improvement (motor noise, or otherwise) with the parcel shelf installed? My car didn't come with one. Back to the motor noise, most of it seems to originate from the underside of the car, rather than from the rear of the interior. I hear it a lot more as a driver than as a p...
by SuperPoly
Thu Jan 27, 2022 5:07 pm
Forum: General / Main i3 Owners Forum
Topic: Metallic rattle sound from passenger side over deep bumps
Replies: 8
Views: 3190

Re: Metallic rattle sound from passenger side over deep bumps

Sure, here's the file: http://sndup.net/cgfm

It can be heard twice. Something must be loose, but I'm not sure where to go hunting. It sounds like it's mostly from the rear, but sometimes it sounds closer to the front.
by SuperPoly
Fri Jan 21, 2022 6:00 pm
Forum: General / Main i3 Owners Forum
Topic: Battery range continues to drop when Rex cuts in.
Replies: 3
Views: 1463

Re: Battery range continues to drop when Rex cuts in.

I would strongly recommend coding "hold state of charge" which adds an option to start the REx as low as 75% state of charge.

Non-US i3s all have this option by default.

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