Madmax21
Posts: 2
Joined: Tue Sep 07, 2021 3:43 pm

What can you do about the REX NOISE???

Sat Sep 11, 2021 12:07 pm

Ok so I understand that the REX is super loud when it turns on to power the battery. But this noise is way to loud that its sometimes embarrassing so drive in a quiet neighborhood lol

No one has figured out how to eliminate or at least help with the sound?

I just got my 2018 BMW i3S REX and loving it! Except the noise of course.

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MKH
Gold Member
Posts: 903
Joined: Fri Nov 02, 2018 5:48 am
Location: Dallas

Re: What can you do about the REX NOISE???

Sat Sep 11, 2021 12:59 pm

I have to roll down the window to even decide if mine is actually running.
Mark H.
2015 i3 Rex, Capparis White, Tera World, Technology & Driving Assistant, Parking Assistant, Harman Kardon Audio System, 19 inch Rial X10-i wheels, EVoInnovate EVSE


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MKH
Gold Member
Posts: 903
Joined: Fri Nov 02, 2018 5:48 am
Location: Dallas

Re: What can you do about the REX NOISE???

Sun Sep 12, 2021 6:52 am

LOL. :D

I have noticed that if I'm at a stop light next to a large panel truck, or driving on a street with buildings closer to the curb, there seems to be an amplified sound bounce-back to the car, that people outside the car really don't hear. From a physics textbook - "Sound waves reflecting off of parabolic surfaces concentrate all their energy to a single point in space; at that point, the sound is amplified". maybe that is what is going on???
Mark H.
2015 i3 Rex, Capparis White, Tera World, Technology & Driving Assistant, Parking Assistant, Harman Kardon Audio System, 19 inch Rial X10-i wheels, EVoInnovate EVSE

Arm
Posts: 166
Joined: Tue Jan 07, 2020 5:53 pm

Re: What can you do about the REX NOISE???

Mon Sep 13, 2021 9:31 am

Get a BEV 😜

3pete
Posts: 156
Joined: Tue Mar 19, 2019 9:03 pm

Re: What can you do about the REX NOISE???

Mon Sep 13, 2021 3:35 pm

And now I'm wondering if anyone makes an aftermarket exhaust for the i3 with a 3" tailpipe for a "free-er flowing exhaust" (and more noise). :lol:

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