websterize
Posts: 506
Joined: Sun Sep 07, 2014 3:39 pm
Location: USA

Rear-Fog Switch Retrofit (U.S. i3s)

Tue Feb 17, 2015 5:07 pm

OEM Euro light switch
Price: $158 (USD in 2014)
Part: 61319311723
Vendor: https://partsale.eu
Ordered Nov. 18, 2014; Delivered Feb. 14, 2015
Tools required: Hands
Installation time: 30 minutes (with coding)

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Grab the right side of the vent* and firmly pull straight out to remove.

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Metal tabs hold vent in place.

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Note bottom seam of black trim piece is behind top of airbag cover.

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Gently pull straight out to remove black trim that surrounds light switch. There are three metal tabs holding trim in place.

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Removing switch plug takes some force. There are no metal tabs.

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Reinstalled. Four tabs — two on top, two on button — hold the switch inside the black trim. Gently pull away trim from tabs and slide out light switch to remove. (Forgot to photograph.)

After taking delivery of the i3 in November, the first to-do on the farkle list was installing a Euro light switch. I live in a rural, and often foggy, area and having this option brings me peace of mind. The switch arrived on Valentine’s Day, nearly three months later. Waiting** was the most difficult part of this install.

On two previous 3-Series (E46 and E92), the Euro switch was plug-and-play. It activated the rear bulbs and awakened the icon in the instrument display, with no coding required. This isn’t the case with the i3. After plugging it in and pressing the rear-fog button, no lamps illuminated in the rear bumper, and the icon in the instrument remained dark. So I cracked open the world's worst laptop.

Bulb 7 is the rear-fog light, according to the BMW training manual, and their designation trumps all. Forum member PhilH, who is in the U.K., confirmed that bulb 7 is the one linked to the switch from the factory. I hoped coding these settings would illuminate it and the instrument icon:

3068 > NSL_Verbaut Set to: verbaut
3064 > Mapping_Nebelschlussl_L_output Set to: nsl_l
3064 > Mapping_Nebelschlussl_L_Function Set to: nebelschlusslicht
3064 > Mapping_Nebelschlussl_R_output Set to: nsl_r
3064 > Mapping_Nebelschlussl_R_Function Set to: nebelschlusslicht

Coding 3068 NSL_Verbaut activated only the icon in the instrument cluster; all bumper lights remained dark. But adding 3064 > Mapping_Nebelschluss turned on bulb 5, which BMW designates as turn signals. These flash as the emergency lights when the trunk is open. The brightness of bulb 5 is similar to the tail light (1). Until I can figure out how to activate bulb 7, these will do.

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Codes from the F30/F32 cheat sheet compiled by Halsifer. Many work well in the i3.

* It’s remarkable how weightless the vent and trim pieces feel. BMW and its vendors sweated over every gram in the i3.

** As forum user SSi3 noted, the rear-fog blank in the U.S. light switch might be modified to activate the rear fog. That would have shortened the wait. Trimming the tabs, though, seems tedious. I'd mess it up. But savings galore if you can pull it off.
Last edited by websterize on Wed Jan 23, 2019 7:24 pm, edited 1 time in total.

SSi3
Posts: 233
Joined: Mon Sep 15, 2014 7:55 am
Location: Ontario, Canada

Re: Rear-Fog Switch Retrofit (U.S. i3s)

Wed Feb 18, 2015 1:18 pm

Nice write-up and pics, thank you!
2015 i3 REx - born electric 4/25/15

jadnashuanh
Posts: 4487
Joined: Thu May 22, 2014 2:07 pm
Location: Nashua, NH USA

Re: Rear-Fog Switch Retrofit (U.S. i3s)

Wed Feb 18, 2015 1:37 pm

Too bad that it isn't a simple switch swap like many of the other BMWs out there (I did swap the switch on my GT to enable the rear fog lights, and it took all of about 10-minutes - no coding, just the switch swap). Not everyone is willing to get setup to code their vehicle and the required learning curve to accomplish it.
Jim DeBruycker
2011 535i x-drive GT, 2014 i3 BEV

SSi3
Posts: 233
Joined: Mon Sep 15, 2014 7:55 am
Location: Ontario, Canada

Re: Rear-Fog Switch Retrofit (U.S. i3s)

Fri Feb 20, 2015 2:14 pm

Curious, do those lights in the bumper function as the extra brake lights during panic braking like other BMWs (Adaptive Brakelights)?
2015 i3 REx - born electric 4/25/15

websterize
Posts: 506
Joined: Sun Sep 07, 2014 3:39 pm
Location: USA

Re: Rear-Fog Switch Retrofit (U.S. i3s)

Fri Feb 20, 2015 5:06 pm

Yes, bulbs 4 and 5 activate. That's why I'd like to figure out how to link 7 to the Euroswitch. That's how it was designed.

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websterize
Posts: 506
Joined: Sun Sep 07, 2014 3:39 pm
Location: USA

Re: Rear-Fog Switch Retrofit (U.S. i3s)

Fri Feb 20, 2015 5:10 pm

There's a bank of LEDs in the bumper.

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Photo by Dan Wang via Facebook i3 page (not mine, thankfully)

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

Re: Rear-Fog Switch Retrofit (U.S. i3s)

Thu May 07, 2015 10:21 am

I guess BMW has wised up to the "free" method, perhaps another 2015 change if you are able to do it on 2014's. I have mine removed in an attempt to do the free button mod, if you remove the two tabs that ours use to keep the button in, then it could just pop out the front at will, I also don't think removing these tabs will allow ours to travel any further inward. Oh well, it was worth a shot, only took about 10 minutes to remove. Thanks for the post OP!

EDIT: It looks like, however, the switches are the same and possibly the wired pigtail is the same so one might be able to find one used on eBay from a totaled F car and perhaps swap it into the i3. I may look into this. I would also love to find out if there is some way to add front fog lights to the i3. It would have to look classy and OEM though. I bet we'll see them at face-lift time (~2017).

crossie
Posts: 47
Joined: Sun Aug 24, 2014 4:53 am
Location: Ireland

Re: Rear-Fog Switch Retrofit (U.S. i3s)

Sat May 09, 2015 6:44 am

Is the top left blank actually used for anything in any region?

websterize
Posts: 506
Joined: Sun Sep 07, 2014 3:39 pm
Location: USA

Re: Rear-Fog Switch Retrofit (U.S. i3s)

Sat May 09, 2015 2:19 pm

That's the front fog switch on other BMW models.

E90fans
Posts: 5
Joined: Tue May 05, 2015 12:36 am

Re: Rear-Fog Switch Retrofit (U.S. i3s)

Thu Jun 11, 2015 1:18 pm

This might be off topic, how can I access to the reverse lights wires since they are in the bumper?

I want to add a reverse camera since my car don't have the parking package, I need to tap into the reverse light circuit to activate the camera. Do I have to remove the bumper to get access?

Thanks

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