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BMW 5-Series (G30) Forum Cosmetic Modifications Bumper trim & diffuser install help

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      05-29-2018, 01:50 AM   #1
nate196
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Bumper trim & diffuser install help

Need some help

Is this the correct river tool for bumper trim/ diffuser install ???

Thanks All
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      05-29-2018, 06:37 AM   #2
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I've changed my diffuser 3 times now (replica and the 2 M Performance OEM varieties) and have not needed/used any rivets whatsover. Just the screws that hold the standard part on, and whatever screws came with the kit.

IIRC, there were rivets with the side skirt extensions, but I didn't use those either and just used screws.
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      05-29-2018, 07:15 AM   #3
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Quote:
Originally Posted by mobilejo View Post
I've changed my diffuser 3 times now (replica and the 2 M Performance OEM varieties) and have not needed/used any rivets whatsover. Just the screws that hold the standard part on, and whatever screws came with the kit.

IIRC, there were rivets with the side skirt extensions, but I didn't use those either and just used screws.
Thanks alot
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      05-29-2018, 11:27 AM   #4
Canuck99
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Quote:
Originally Posted by mobilejo View Post
I've changed my diffuser 3 times now (replica and the 2 M Performance OEM varieties) and have not needed/used any rivets whatsover. Just the screws that hold the standard part on, and whatever screws came with the kit.

IIRC, there were rivets with the side skirt extensions, but I didn't use those either and just used screws.
+1 you shouldn't need any rivets, there are plastic press in snaps and screws used.
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      10-29-2018, 07:07 PM   #5
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Anyone have a DIY ?

How do you remove the diffuser after you undo the dozen screws that are underneath ?

I noticed some electronics attached to the OEM diffuser, suppose those are for the kick motion trunk opening, once those come off with the stock diffuser, you obviously lose the function, but does it through an error code or check engine light ?
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      10-30-2018, 07:38 PM   #6
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Quote:
Originally Posted by 2blu View Post
Anyone have a DIY ?

How do you remove the diffuser after you undo the dozen screws that are underneath ?

I noticed some electronics attached to the OEM diffuser, suppose those are for the kick motion trunk opening, once those come off with the stock diffuser, you obviously lose the function, but does it through an error code or check engine light ?
I have kick motion, and none of the elctronic modules come off with the diffuser. There is an 'inner skin' behind the diffuser that the electronics attach to - that skin stays put so all of your modules stay put too.

The kick motion still worked on my car when I installed my diffuser myself (albeit less sensitive), however when my car went in to the bodyshop for a paint repair on the bumper, they removed and then re-installed the diffuser. After that, kick motion stopped working weirdly (well it worked exactly 1 time but I can't replicate it, but it does mean I know the electronics are all still there even after the bodyshop refitted the diffuser).
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      10-30-2018, 11:15 PM   #7
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Quote:
Originally Posted by mobilejo View Post
I have kick motion, and none of the elctronic modules come off with the diffuser. There is an 'inner skin' behind the diffuser that the electronics attach to - that skin stays put so all of your modules stay put too.

The kick motion still worked on my car when I installed my diffuser myself (albeit less sensitive), however when my car went in to the bodyshop for a paint repair on the bumper, they removed and then re-installed the diffuser. After that, kick motion stopped working weirdly (well it worked exactly 1 time but I can't replicate it, but it does mean I know the electronics are all still there even after the bodyshop refitted the diffuser).
Thanks again for your input !
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