[Aragorn30d]

I've noticed since having the undertray off the car last week to do the thermostat and things, i've got an air deflector thing hanging down on the bumper:

https://www.dropbox.com/s/n48132ktsg...58.49.jpg?dl=0

I've had a look and there appears to be a fastener or something missing, i pushed it back up into place and this hole in the bumper lines up with a hole in the flap thing, but theres nothing to go into it?

https://www.dropbox.com/s/b8l4rjzsu0...06.03.jpg?dl=0

The other side is the same, with nothing in that hole, both flaps just have a single screw on the outer edge.

Anyone know whats supposed to go in there to hold it inplace?

[Aragorn30d]

http://www.realoem.com/bmw/showparts...1&fg=55&hl=122

I think i've found it on there, item 7...

BUT, i've still no idea what fasteners are supposed to be used, its really not clear on that at all!

[Aragorn30d]

No-one knows what holds this thing on?!

[col2611]

I would say you need number 15 from your real oem link. A similar type fastener was used on my z4 side skirt which I had to remove.

[Aragorn30d]

yeh i thaught something along those lines too, but 15 i think is quite a bit smaller. The hole in the plastic thing and the bumper is really quite large, 10-15mm at a guess.

the item 13 in the circle suggests 6 screws are required to fix them, presumeably 3 per side. The one screw thats there does look like 13, but i cant see what the other two would screw into?!

[Aragorn30d]

Ah interesting....

http://www.ecstuning.com/ES129310/

My flap looks like its worn away, its shorter than that pic and you can see the worn edge on the inside.

[den656]

I am interested to see what you end up doing mate, you will find that they get worn from rubbing on kerbs etc when you are parking up , as mine are the same, and also no fittinsgs, I do wonder if they have popped out at some point due to the splitter thing being flexed too much,as it's rubber so bends well.
I have been tempted to use a couple of short mushroom head bolts with nylon nuts , only thing I worry is if parking too close it may just rip a hole in the bumper :-s ,so hoping someone,or you has a fix lol .

[Aragorn30d]

Boss at work has a 335d so had a squint under it at lunch time.

His is fixed with two screws and two rivets:

https://www.dropbox.com/s/rrbyo3ls3u...30.48.jpg?dl=0
https://www.dropbox.com/s/8rq4fk84gl...30.53.jpg?dl=0

I think i've found the screw and the rivits on realoem, so i'll order them when i get a chance and keep you updated.

[tom619]

I thought this was just me when I took a look under my 320 some time back, I'm also missing a few screws/rivits on the underside.

[AWSAWS]

Go for cable ties?