Foot trunk release not working M Performance and other rear diffusers

Sir Loin · 09-11-2014, 01:55 PM

I installed mine last night. It is better to screw in the two middle screws so the diffuser doesn't flap around while driving. Otherwise the two outside screw holes would take more stress from movement.

Keto · 09-13-2014, 10:01 AM

Has anyone tried any mods to make the sensor work with the diffuser? I canceled my diffuser order because I've used the kick sensor 20x already (costco, soccer, you name it). Seems like it's something where a part could be moved or subtle dremel work might help...

uae247 · 10-11-2014, 02:12 PM

I bought the diffuser and am returning it now.

The dealer had to call BMW and it does not work.

This is BS!
I shouldn't pay this much for a non working diffuser.

Oh well!
Money will be spent on Akra downpipes which arrive this week.

CanAutM3 · 10-14-2014, 01:06 PM

I can confirm that the "kick to open trunk" feature stopped working since I installed the diffuser. Not a deal breaker for me since I really dig the look of the diffuser paired with the MPE.

farbmw · 10-14-2014, 03:15 PM

Quote:

Originally Posted by redfox

Correct, but the standard diffuser clips into the white plastic piece holding the sensor, which in turn uses those screws.

Did yours stopped working as well?

NorCal f80 · 10-14-2014, 09:21 PM

I don't have my car, so I can't just go out and check the sensor placement but I saw this picture and looks like the sensor is towards the rear, black strip???, so no-go on cutting the diffuser for sensors. There goes that idea.

(EAS Akrapovic install)

roders · 01-24-2015, 10:06 AM

Hi All,

I know some owners were having issues with the trunk release not working with the MPE diffuser.
Is this issue effecting all the carbon aftermarket options too? Has anyone got a new rear diffuser and still able to use their foot trunk release?

Thanks

Wah · 01-24-2015, 11:06 AM

I'm pretty sure it has to do with all carbon fiber diffusers.

roders · 01-25-2015, 12:36 AM

Is it the carbon over the poly? or is it due to the shape?
Wondering if its possible to move the sensor to have the best of both worlds....

Green///Hell · 01-25-2015, 02:17 AM

Honestly I haven't gotten it to work once in stock form

fdsjkl · 01-25-2015, 07:15 AM

I can confirm that carbon fibre diffuser DOES affect foot truck release.
It works if you stand behind your car, swing your foot underneath and kick your diffuser for a minute until you triger that magic point.

It worked 100% of time for me before fitting carbon fibre diffuser.

GOLFFRR · 01-25-2015, 07:44 AM

correct, kick doesn't work with CF diffuser

NorCal f80 · 01-25-2015, 12:47 PM

Mine only works a few times out of ten anyways.

Wei718 · 01-25-2015, 01:14 PM

Works every time in stock form for me.

catch · 01-25-2015, 04:10 PM

i didn't even know the car did this... guess its a painted diffusor for me

roders · 03-02-2015, 08:10 AM

Update, I just got one of the Ebay carbon rear diffusers and it DOES work.
Foot release is still working, same as it was with the original OEM.
Not endorsing cheaper Ebay China products, but for the price had to give it a shot as the originals were not stocked locally in Australia

Wah · 03-02-2015, 08:13 AM

Quote:

Originally Posted by roders

Update, I just got one of the Ebay carbon rear diffusers and it DOES work.
Foot release is still working, same as it was with the original OEM.
Not endorsing cheaper Ebay China products, but for the price had to give it a shot as the originals were not stocked locally in Australia

Out of curiosity, which seller did you buy from? How is the fitment? If this is true I'm all over it!

Vectors2final · 03-02-2015, 08:19 AM

I honestly don't care where its from as long as it doesn't look like shit.

I'd never regain any money from selling those high dollar CF pieces, plus I'd feel awful if I messed them up somehow. I've bought many parts in my day, and that's just the way it goes. I'm not taking any credit away from those said high dollar guys...

roders · 03-02-2015, 08:21 AM

PM Sent, to keep within forum guidelines of promoting ebay sellers.

sh55 · 03-02-2015, 09:20 PM

I have a thread on this, can't link now since I'm on mobile.

Carbon fiber insulates radio frequencies, that is why the trunk kick doesn't work.

FSHNGRY · 03-03-2015, 12:31 AM

Quote:

Originally Posted by roders

Hi All,

I know some owners were having issues with the trunk release not working with the MPE diffuser.
Is this issue effecting all the carbon aftermarket options too? Has anyone got a new rear diffuser and still able to use their foot trunk release?

Thanks

Enjoy the kick diffuser while you can... In due time, you'll be getting a carbon diffuser and you'll too realize that you'll give up the "kick" feature for carbon fiber rear bumper glory.

roders · 03-03-2015, 01:35 AM

I'm enjoying both my carbon & kick function at the moment

09-11-2014, 01:55 PM	#23
Sir Loin M3AT LOVER 322 Rep 1,853 Posts Drives: Silverstone F80 M3 Join Date: Aug 2013 Location: Seattle iTrader: (0)	I installed mine last night. It is better to screw in the two middle screws so the diffuser doesn't flap around while driving. Otherwise the two outside screw holes would take more stress from movement. __________________ 2015 F80 M3 \| SSII ext SO int \| M-DCT \| 19" Black Wheels
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09-13-2014, 10:01 AM	#24
Keto Lieutenant Colonel 73 Rep 1,603 Posts Drives: F80 M3 Join Date: Jul 2007 Location: WHO DAT NATION iTrader: (1) Garage List 2015 BMW M3 [10.00]	Has anyone tried any mods to make the sensor work with the diffuser? I canceled my diffuser order because I've used the kick sensor 20x already (costco, soccer, you name it). Seems like it's something where a part could be moved or subtle dremel work might help... __________________ 2015 SO/SO MT M3 :: Exec : Lighting : Adaptive : HK : CF trim : Full leather : DAP : Black 19's : sunshade Crystalline tint 40%/70% on windshield : M performance mirrors, spoiler, splitters : Status Gruppe CF lip : RKP diffuser : Fully dechromed Bavsound Stage 1 : V1 Savvy hardwired : Self-coded
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10-11-2014, 02:12 PM	#25
uae247 Second Lieutenant 202 Rep 283 Posts Drives: F80/E90/E30 M3s+1M+Boss 302 Join Date: May 2008 Location: Abu Dhabi UAE iTrader: (0)	I bought the diffuser and am returning it now. The dealer had to call BMW and it does not work. This is BS! I shouldn't pay this much for a non working diffuser. Oh well! Money will be spent on Akra downpipes which arrive this week.
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10-14-2014, 01:06 PM	#26
CanAutM3 General 21117 Rep 20,741 Posts Drives: 2021 911 turbo Join Date: Jan 2012 Location: Montreal iTrader: (1) Garage List 2022 Audi RS6 [10.00] 2021 Porsche 911 turbo [10.00]	I can confirm that the "kick to open trunk" feature stopped working since I installed the diffuser. Not a deal breaker for me since I really dig the look of the diffuser paired with the MPE. Attached Images
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10-14-2014, 09:21 PM	#28
NorCal f80 Lieutenant Colonel 346 Rep 1,656 Posts Drives: M3 Join Date: Apr 2014 Location: Nor Cal iTrader: (0)	I don't have my car, so I can't just go out and check the sensor placement but I saw this picture and looks like the sensor is towards the rear, black strip???, so no-go on cutting the diffuser for sensors. There goes that idea. (EAS Akrapovic install)
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01-24-2015, 10:06 AM	#29
roders Second Lieutenant 37 Rep 299 Posts Drives: BMW X3 3.0D MSport F25 Join Date: Oct 2007 Location: Perth, WA, Australia iTrader: (0)	Foot trunk release & Rear diffusers Hi All, I know some owners were having issues with the trunk release not working with the MPE diffuser. Is this issue effecting all the carbon aftermarket options too? Has anyone got a new rear diffuser and still able to use their foot trunk release? Thanks
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01-24-2015, 11:06 AM	#30
Wah IG@i.am.wah 2779 Rep 3,815 Posts Drives: M2 CS Join Date: Jul 2009 Location: NJ iTrader: (4) Garage List 2022 Tesla Model Y ... [0.00] 1974 BMW 2002 [0.00] 2020 BMW M2 CS [0.00]	I'm pretty sure it has to do with all carbon fiber diffusers.
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01-25-2015, 12:36 AM	#31
roders Second Lieutenant 37 Rep 299 Posts Drives: BMW X3 3.0D MSport F25 Join Date: Oct 2007 Location: Perth, WA, Australia iTrader: (0)	Is it the carbon over the poly? or is it due to the shape? Wondering if its possible to move the sensor to have the best of both worlds....
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01-25-2015, 02:17 AM	#32
Green///Hell Colonel 183 Rep 2,872 Posts Drives: 991 GT3, F15 X5, 1199S Join Date: Feb 2009 Location: Chicago iTrader: (5)	Honestly I haven't gotten it to work once in stock form
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01-25-2015, 07:15 AM	#33
fdsjkl Private 54 Rep 93 Posts Drives: 2014 M4 Join Date: Mar 2014 Location: QLD Australia iTrader: (0)	I can confirm that carbon fibre diffuser DOES affect foot truck release. It works if you stand behind your car, swing your foot underneath and kick your diffuser for a minute until you triger that magic point. It worked 100% of time for me before fitting carbon fibre diffuser.
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01-25-2015, 07:44 AM	#34
GOLFFRR 10817 Rep 27,600 Posts Drives: GOLFFRR cart Join Date: Mar 2009 Location: we sell BMWs to "ALL" US states iTrader: (4)	correct, kick doesn't work with CF diffuser __________________ BEFORE YOU BUY YOUR NEXT BMW, EMAIL OUR GUY KOTE FIRST! Kote M Sales:Kotem@bmwofcamarillo.com Cell:805-368-9101 vipfinance@bmwofcamarillo.com for warranties!
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01-25-2015, 12:47 PM	#35
NorCal f80 Lieutenant Colonel 346 Rep 1,656 Posts Drives: M3 Join Date: Apr 2014 Location: Nor Cal iTrader: (0)	Mine only works a few times out of ten anyways.
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01-25-2015, 01:14 PM	#36
Wei718 Major 340 Rep 1,089 Posts Drives: 718 GT4 Join Date: Nov 2012 Location: Hayward iTrader: (9)	Works every time in stock form for me.
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01-25-2015, 04:10 PM	#37
catch Major General 668 Rep 7,148 Posts Drives: F80 M3 Join Date: Jan 2009 Location: Thornhill iTrader: (27)	i didn't even know the car did this... guess its a painted diffusor for me __________________ 2016 F80 M3 Mineral White/Sakhir Orange 2013 BMW S1000RR Flat Silver <stolen> 2007 BMW E92 335i Jet Black/Jade Grey <sold>
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03-02-2015, 08:10 AM	#38
roders Second Lieutenant 37 Rep 299 Posts Drives: BMW X3 3.0D MSport F25 Join Date: Oct 2007 Location: Perth, WA, Australia iTrader: (0)	Update, I just got one of the Ebay carbon rear diffusers and it DOES work. Foot release is still working, same as it was with the original OEM. Not endorsing cheaper Ebay China products, but for the price had to give it a shot as the originals were not stocked locally in Australia
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03-02-2015, 08:19 AM	#40
Vectors2final Brigadier General 1357 Rep 3,349 Posts Drives: 2018 F80 YMB/SS ZCP Join Date: May 2011 Location: Austin, Tx iTrader: (0)	I honestly don't care where its from as long as it doesn't look like shit. I'd never regain any money from selling those high dollar CF pieces, plus I'd feel awful if I messed them up somehow. I've bought many parts in my day, and that's just the way it goes. I'm not taking any credit away from those said high dollar guys... __________________ 2019 Ruby GT350 - Gen 5 Whipple on corn making 855RWHP. Sold: 2018 F80 Part Deux /DCT /YMB /Full SS /CF Trim /ZCP /ZEC w/Black 666M Sold: 2015 F80 /DCT /YMB /Full SS /CF Trim /ZEC /ZLP /HK /S&TVC- 18''///M
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03-02-2015, 08:21 AM	#41
roders Second Lieutenant 37 Rep 299 Posts Drives: BMW X3 3.0D MSport F25 Join Date: Oct 2007 Location: Perth, WA, Australia iTrader: (0)	PM Sent, to keep within forum guidelines of promoting ebay sellers.
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03-02-2015, 09:20 PM	#42
sh55 Lieutenant 220 Rep 433 Posts Drives: %E2%80%9805 E46 ZCP 6MT and '9 Join Date: Oct 2013 Location: Brooklyn NY iTrader: (0)	I have a thread on this, can't link now since I'm on mobile. Carbon fiber insulates radio frequencies, that is why the trunk kick doesn't work. __________________ ______________________________ ?05 E46 M3 ZCP 6MT ?06 C55 AMG '97 911S 6MT
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03-03-2015, 01:35 AM	#44
roders Second Lieutenant 37 Rep 299 Posts Drives: BMW X3 3.0D MSport F25 Join Date: Oct 2007 Location: Perth, WA, Australia iTrader: (0)	I'm enjoying both my carbon & kick function at the moment
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