Foot trunk release not working M Performance and other rear diffusers

Dasm3nd · 09-02-2014, 10:35 PM

I got my MP diffuser installed by stealership. Foot trunk release not working. When I undo the central 2 screws (out of the 4 that are used), somehow it starts working. If I don't insert the screw through the latch tabs of the diffuser, the sensor works. Unfortunately, I can't tell where the hell the sensor is.

Anyone have ideas aside from taking back to dealer?

GOLFFRR · 09-03-2014, 06:40 AM

I messed with mine this morning and was not able to get the boot to pop using the kick no matter what I did, which is odd bc the diff are identical besides the blades. For me the feature was never used anyways but if you are someone that uses it all the time and has already become custom to using it then def wouldn't hurt to take it into your dealer and see if there is any conclusion to this.

Next time I goto the store ill have the guys take a look at mine as well

xTaitox · 09-03-2014, 01:16 PM

Could never get the damn thing working on my F32 and got it to work once on my F80 during my ED lol

Dasm3nd · 09-03-2014, 01:37 PM

It's not a deal breaker for me. CF diffuser on YMB looks sweet. But, it worked flawlessly prior to new diffuser. I like having the option.

Dasm3nd · 09-04-2014, 07:05 PM

Per dealer and BMW engineering--who they consulted--CF diffuser has design flaw in that you lose the foot trunk release function when it is installed. No plans on a solution but clearly the diffuser would need a mod/redesign.

SMOKE EM IF U GOT EM!! · 09-04-2014, 07:45 PM

Quote:

Originally Posted by Dasm3nd

Per dealer and BMW engineering--who they consulted--CF diffuser has design flaw in that you lose the foot trunk release function when it is installed. No plans on a solution but clearly the diffuser would need a mod/redesign.

FTL. we should be gaining things after spending a g on aesthetics. not losing shit! wtf bmw? they better get a better answer than that before I buy mine! lol

Wah · 09-04-2014, 08:20 PM

Quote:

Originally Posted by Dasm3nd

Per dealer and BMW engineering--who they consulted--CF diffuser has design flaw in that you lose the foot trunk release function when it is installed. No plans on a solution but clearly the diffuser would need a mod/redesign.

WTF!!! That is so... ugh.

I'm not buying it then. I use the foot thing daily... I carry a box that goes into the trunk from my office almost every day. I'd be pretty pissed if I spend a grand and then lose this function.

SMOKE EM IF U GOT EM!! · 09-04-2014, 08:53 PM

Quote:

Originally Posted by Wah

WTF!!! That is so... ugh.

I'm not buying it then. I use the foot thing daily... I carry a box that goes into the trunk from my office almost every day. I'd be pretty pissed if I spend a grand and then lose this function.

Exactly the way I feel. Ridiculous man. You'd think w all the engineering and r&d they do we wouldn't have to compromise for this kinda money.

GOLFFRR · 09-05-2014, 06:53 AM

ok good to know that I was not crazy then when I said it wasn't working lol

LukasAT · 09-05-2014, 07:57 AM

I call bullshit on this .. you want to tell me when I put a piece of plastic on my trunk the foot release should not work? maybe your dealer disabled here something for no reason ...

can somebody else confirm that it doesnt work anymore with the CF spoiler on it?!

Dasm3nd · 09-05-2014, 09:21 AM

Quote:

Originally Posted by LukasAT

I call bullshit on this .. you want to tell me when I put a piece of plastic on my trunk the foot release should not work? maybe your dealer disabled here something for no reason ...

can somebody else confirm that it doesnt work anymore with the CF spoiler on it?!

CF diffuser...not spoiler.

SMOKE EM IF U GOT EM!! · 09-05-2014, 10:04 AM

Quote:

Originally Posted by LukasAT

I call bullshit on this .. you want to tell me when I put a piece of plastic on my trunk the foot release should not work? maybe your dealer disabled here something for no reason ...

can somebody else confirm that it doesnt work anymore with the CF spoiler on it?!

We're talking about the cf diffuser down on the bottom of the bumper. Not the the spoiler on the trunk lid. the sensor is located directly behind the diffuser at the bottom of the bumper.

sorry I had to lol

F30form · 09-05-2014, 10:49 AM

You know that the same thing is going to happen on any diffuser that you put on...right?

LukasAT · 09-05-2014, 10:54 AM

Quote:

Originally Posted by SMOKE EM IF U GOT EM!!

We're talking about the cf diffuser down on the bottom of the bumper. Not the the spoiler on the trunk lid. the sensor is located directly behind the diffuser at the bottom of the bumper.

sorry I had to lol

oh ok that makes more sense .. sry my confusion ... lol that sucks

SMOKE EM IF U GOT EM!! · 09-05-2014, 10:55 AM

Quote:

Originally Posted by F30form

You know that the same thing is going to happen on any diffuser that you put on...right?

Probably any propylene plastic one like oem material would be fine. Im sure it has something to do w the fibers in the cf weave as well as the resins in it also.

Dasm3nd · 09-05-2014, 11:41 AM

Quote:

Originally Posted by SMOKE EM IF U GOT EM!!

Quote:

Originally Posted by F30form

You know that the same thing is going to happen on any diffuser that you put on...right?

Probably any propylene plastic one like oem material would be fine. Im sure it has something to do w the fibers in the cf weave as well as the resins in it also.

I disagree. It has to do with the width of the exposed space the sensor is in. I was able to get it to work if I only attach diffuser with the 2 outside screws. If I also do the middle 2, sensor stops working. Dealer noticed same pattern.

Wah · 09-05-2014, 09:21 PM

Quote:

Originally Posted by Dasm3nd

I disagree. It has to do with the width of the exposed space the sensor is in. I was able to get it to work if I only attach diffuser with the 2 outside screws. If I also do the middle 2, sensor stops working. Dealer noticed same pattern.

DO you need the middle ones? I noticed the standard diffuser doesn't even use those screws.

SMOKE EM IF U GOT EM!! · 09-06-2014, 05:45 AM

Quote:

Originally Posted by Wah

DO you need the middle ones? I noticed the standard diffuser doesn't even use those screws.

Yea maybe you could find a plastic push clip instead if it is needed to keep it from flapping around.

Dasm3nd · 09-06-2014, 11:13 AM

Quote:

Originally Posted by SMOKE EM IF U GOT EM!!

Quote:

Originally Posted by Wah

DO you need the middle ones? I noticed the standard diffuser doesn't even use those screws.

Yea maybe you could find a plastic push clip instead if it is needed to keep it from flapping around.

Diffuser does not rattle without middle screws but heat shield does.

kitw · 09-10-2014, 06:59 PM

I installed mine - same problem, doesn't work at all

Curious to see if there will be a solution.

StevenAM · 09-11-2014, 12:25 AM

If you put CF rear diffuser it will block the sensor and disable the function.

redfox · 09-11-2014, 11:35 AM

Quote:

Originally Posted by Wah

DO you need the middle ones? I noticed the standard diffuser doesn't even use those screws.

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

09-02-2014, 10:35 PM	#1
Dasm3nd Private First Class 29 Rep 124 Posts Drives: 2015 YMB F80 Join Date: Jan 2014 Location: North Texas iTrader: (0)	Foot trunk release not working M Performance and other rear diffusers I got my MP diffuser installed by stealership. Foot trunk release not working. When I undo the central 2 screws (out of the 4 that are used), somehow it starts working. If I don't insert the screw through the latch tabs of the diffuser, the sensor works. Unfortunately, I can't tell where the hell the sensor is. Anyone have ideas aside from taking back to dealer?
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09-03-2014, 06:40 AM	#2
GOLFFRR 10794 Rep 27,588 Posts Drives: GOLFFRR cart Join Date: Mar 2009 Location: we sell BMWs to "ALL" US states iTrader: (4)	I messed with mine this morning and was not able to get the boot to pop using the kick no matter what I did, which is odd bc the diff are identical besides the blades. For me the feature was never used anyways but if you are someone that uses it all the time and has already become custom to using it then def wouldn't hurt to take it into your dealer and see if there is any conclusion to this. Next time I goto the store ill have the guys take a look at mine as well __________________ 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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09-03-2014, 01:16 PM	#3
xTaitox Private First Class 5 Rep 106 Posts Drives: F80 SO Join Date: Aug 2014 Location: Tampa,Fl iTrader: (0)	Could never get the damn thing working on my F32 and got it to work once on my F80 during my ED lol
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09-03-2014, 01:37 PM	#4
Dasm3nd Private First Class 29 Rep 124 Posts Drives: 2015 YMB F80 Join Date: Jan 2014 Location: North Texas iTrader: (0)	It's not a deal breaker for me. CF diffuser on YMB looks sweet. But, it worked flawlessly prior to new diffuser. I like having the option.
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09-04-2014, 07:05 PM	#5
Dasm3nd Private First Class 29 Rep 124 Posts Drives: 2015 YMB F80 Join Date: Jan 2014 Location: North Texas iTrader: (0)	Per dealer and BMW engineering--who they consulted--CF diffuser has design flaw in that you lose the foot trunk release function when it is installed. No plans on a solution but clearly the diffuser would need a mod/redesign.
	Appreciate 0 Quote

09-05-2014, 06:53 AM	#9
GOLFFRR 10794 Rep 27,588 Posts Drives: GOLFFRR cart Join Date: Mar 2009 Location: we sell BMWs to "ALL" US states iTrader: (4)	ok good to know that I was not crazy then when I said it wasn't working lol __________________ 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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09-05-2014, 07:57 AM	#10
LukasAT Second Lieutenant 118 Rep 287 Posts Drives: 2024 BMW X5M Join Date: Aug 2014 Location: CA iTrader: (0)	I call bullshit on this .. you want to tell me when I put a piece of plastic on my trunk the foot release should not work? maybe your dealer disabled here something for no reason ... can somebody else confirm that it doesnt work anymore with the CF spoiler on it?!
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09-05-2014, 10:49 AM	#13
F30form Private First Class 18 Rep 195 Posts Drives: '13 Mini Cooper S Hardtop Join Date: Mar 2013 Location: United States iTrader: (0)	You know that the same thing is going to happen on any diffuser that you put on...right?
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09-10-2014, 06:59 PM	#20
kitw Colonel 471 Rep 2,991 Posts Drives: F91 M8, 991.2 GT3 Join Date: Jun 2007 Location: Bay Area, CA iTrader: (20)	I installed mine - same problem, doesn't work at all Curious to see if there will be a solution. __________________ DSC_3369 by Kit W, on Flickr
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09-11-2014, 12:25 AM	#21
StevenAM New Member 3 Rep 7 Posts Drives: 2014 M3, 2014 M5, 2012 X5M Join Date: Feb 2014 Location: Melbourne, Australia iTrader: (0)	If you put CF rear diffuser it will block the sensor and disable the function.
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