panamamike
Posts: 121
Joined: Sat Jan 25, 2020 10:21 am

Dash lights strange blinking

Mon Feb 10, 2020 5:32 pm

I've noticed some of my dash lights will blink unexpectedly. The lights don't blink at an expected cadence but an odd rate. Seems to happen on acceleration or deceleration. Anyone else see this kind of behavior?

Well, I found a video on youtube with the same issue, looks like there are a few different reasons why this might happen and none are good. :(

symonray
Posts: 52
Joined: Thu Mar 07, 2019 8:52 am

Re: Dash lights strange blinking

Mon Feb 10, 2020 6:15 pm

Possibly the 12 volt battery starting to fail.
Timothy Simonds
2017 BMW i3 Rex

Neil
Posts: 45
Joined: Sat Sep 06, 2014 10:11 am
Location: Davis, CA USA

Re: Dash lights strange blinking

Mon Feb 10, 2020 11:06 pm

My 2014 Rex has been doing this for over a year or two. Some of the dash LEDs are off when they should be on and some flicker from time to time. The associated functions do not seem to be affected when this happens. I've learned to ignore it for now, sometimes I can press the associated button which will restore normal behavior. I'm interested in what others who are experiencing this with their i3s to find out if there is a fix. I'll have to check but I think I had this put on a work order when my car was under warranty so I might be able to get it fixed in the future under warranty.

alohart
Posts: 2121
Joined: Sat Nov 01, 2014 7:36 pm
Location: Honolulu, HI

Re: Dash lights strange blinking

Mon Feb 10, 2020 11:40 pm

Neil wrote:
Mon Feb 10, 2020 11:06 pm
I'm interested in what others who are experiencing this with their i3s to find out if there is a fix.
This problem has been reported fairly often, unfortunately. A few i3 owners have replaced the LED's on the climate control circuit board (soldering required) which fixed the problem. BMW's fix is to replace the circuit board which is fairly expensive if not under warranty. So defective LED's seems to be the problem, not the functioning of the circuit board.
Aloha,
Art

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

Neil
Posts: 45
Joined: Sat Sep 06, 2014 10:11 am
Location: Davis, CA USA

Re: Dash lights strange blinking

Mon Feb 10, 2020 11:55 pm

alohart wrote:
Neil wrote:
Mon Feb 10, 2020 11:06 pm
I'm interested in what others who are experiencing this with their i3s to find out if there is a fix.
This problem has been reported fairly often, unfortunately. A few i3 owners have replaced the LED's on the climate control circuit board (soldering required) which fixed the problem. BMW's fix is to replace the circuit board which is fairly expensive if not under warranty. So defective LED's seems to be the problem, not the functioning of the circuit board.
Thanks Alohart!

Do you know of any links which show the procedure to remove the climate control circuit board and which LEDs to use? I am adept at soldering and I'd rather not take it to the dealer if it's not too difficult.

panamamike
Posts: 121
Joined: Sat Jan 25, 2020 10:21 am

Re: Dash lights strange blinking

Tue Feb 11, 2020 7:56 am

alohart wrote:
Mon Feb 10, 2020 11:40 pm
Neil wrote:
Mon Feb 10, 2020 11:06 pm
I'm interested in what others who are experiencing this with their i3s to find out if there is a fix.
This problem has been reported fairly often, unfortunately. A few i3 owners have replaced the LED's on the climate control circuit board (soldering required) which fixed the problem. BMW's fix is to replace the circuit board which is fairly expensive if not under warranty. So defective LED's seems to be the problem, not the functioning of the circuit board.
Awesome! That makes me feel better as they were reporting some other reasons on the youtube video.
So from a functional perspective I shouldn't be concerned? Is there a TSB or something I can refer the dealer to?

alohart
Posts: 2121
Joined: Sat Nov 01, 2014 7:36 pm
Location: Honolulu, HI

Re: Dash lights strange blinking

Tue Feb 11, 2020 12:43 pm

Neil wrote:
Mon Feb 10, 2020 11:55 pm
Do you know of any links which show the procedure to remove the climate control circuit board and which LEDs to use? I am adept at soldering and I'd rather not take it to the dealer if it's not too difficult.
My search skills have failed :( Maybe yours are better.

I recall that a European i3 owner removed the climate control circuit board, unsoldered the LED's, and soldered replacements. He reported the model and very low cost of the replacement LED's. I recall thinking that my soldering iron might be too large for such a delicate operation.
Aloha,
Art

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

alohart
Posts: 2121
Joined: Sat Nov 01, 2014 7:36 pm
Location: Honolulu, HI

Re: Dash lights strange blinking

Tue Feb 11, 2020 12:46 pm

panamamike wrote:
Tue Feb 11, 2020 7:56 am
So from a functional perspective I shouldn't be concerned? Is there a TSB or something I can refer the dealer to?
Those who have reported this problem don't seem to have reported any functional problem, so it seems that the LED's are the problem.

I haven't experienced this problem so have no personal knowledge of a TSB.

For what it's worth, the dealer's fix would be replacement of the circuit board rather than the LED's.
Aloha,
Art

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

panamamike
Posts: 121
Joined: Sat Jan 25, 2020 10:21 am

Re: Dash lights strange blinking

Tue Feb 11, 2020 12:50 pm

alohart wrote:
Tue Feb 11, 2020 12:46 pm
panamamike wrote:
Tue Feb 11, 2020 7:56 am
So from a functional perspective I shouldn't be concerned? Is there a TSB or something I can refer the dealer to?
Those who have reported this problem don't seem to have reported any functional problem, so it seems that the LED's are the problem.

I haven't experienced this problem so have no personal knowledge of a TSB.

For what it's worth, the dealer's fix would be replacement of the circuit board rather than the LED's.
We will see. Will take it in and see if they take the correct course of action. Any suggestions on how to guide them to the answer if they don't figure it out?

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