M Sport rear diffuser flapping on motorway speed

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Guys, my M sports bumper's diffuser flaps on the motorway speed due to air flow. upon closer look I found that its not connected to anything underside of car. It does have two screw holes (not connected anywhere) but I can't really see where would they go to fix. Neither can I find any part which I need to buy to attach this to.
I haven't had a chance to look under another M Sports bumber to findout what it is supposed to holding to.

Any help will be appreciated.

Edited by afsar - 06-October-2011 at 18:25

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afsar Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member II Joined: 25-November-2007 Status: Offline Points: 172	Post Options Post Reply Quote afsar Report Post Thanks(0) Quote Reply Topic: M Sport rear diffuser flapping on motorway speed Posted: 06-October-2011 at 18:23
	Guys, my M sports bumper's diffuser flaps on the motorway speed due to air flow. upon closer look I found that its not connected to anything underside of car. It does have two screw holes (not connected anywhere) but I can't really see where would they go to fix. Neither can I find any part which I need to buy to attach this to. I haven't had a chance to look under another M Sports bumber to findout what it is supposed to holding to. Any help will be appreciated. Edited by afsar - 06-October-2011 at 18:25

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Andrew Rolland Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Go away rain Joined: 19-August-2004 Location: Scotland Status: Offline Points: 6579	Post Options Post Reply Quote Andrew Rolland Report Post Thanks(0) Quote Reply Posted: 06-October-2011 at 21:49
	Front or rear bumper? How do you know it flaps? Has a mate advised you or was a mate driving and you observed? Or can you hear a banging?
	Be exclusive and drive a Petrol 5 Series! Current '13 62 F10 535i MSport Auto Previous '04 04 E60 545i SE Auto '03 53 E60 545i SE Auto (Stolen) '98 S E39 523i SE Auto

afsar Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member II Joined: 25-November-2007 Status: Offline Points: 172	Post Options Post Reply Quote afsar Report Post Thanks(0) Quote Reply Posted: 07-October-2011 at 11:50
	I thought I replied this before, perhaps I didn't submit my reply. Its rear bumper, my friend told me when he was following me on the motorway at "high speed". despite this I did 150 mph on German autobahn last week and nothing broke... :P Is this the part I need to tie it http://www.ebay.co.uk/itm/280744998527?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#ht_500wt_1195

Andrew Rolland Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Go away rain Joined: 19-August-2004 Location: Scotland Status: Offline Points: 6579	Post Options Post Reply Quote Andrew Rolland Report Post Thanks(0) Quote Reply Posted: 07-October-2011 at 12:19
	[QUOTE=afsar]Is this the part I need to tie it http://www.ebay.co.uk/itm/280744998527?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#ht_500wt_1195[/QUOTE] No and that's very expensive for those bits seeing as how they are 'used'. You should have something similar to Part #6 on the underside where your MSport bumper connects to using clips Part #16. I can't find anything really different listing for an MSport model, the realoem link above is for my SE. From what I've seen on MSport models is that there doesn't appear to be much holding the rear bumper on where a 'Part#6' would go. The parts listed in your Ebay link are the side supports which support the bottom of the bumper at the side, about 6 to 12 inches behind the rear wheel. There is a lower fixing, an expanded rivet which was stuck in mine when I removed my rear bumper to fit my towbar. I had to drill out the fixing but I've had no issues without it.
	Be exclusive and drive a Petrol 5 Series! Current '13 62 F10 535i MSport Auto Previous '04 04 E60 545i SE Auto '03 53 E60 545i SE Auto (Stolen) '98 S E39 523i SE Auto

afsar Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member II Joined: 25-November-2007 Status: Offline Points: 172	Post Options Post Reply Quote afsar Report Post Thanks(0) Quote Reply Posted: 07-October-2011 at 14:44
	That makes sense. Its not that costly, let me buy part #06 and associated screws. Thanks Andy, you have been very helpful as always.

Andrew Rolland Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Go away rain Joined: 19-August-2004 Location: Scotland Status: Offline Points: 6579	Post Options Post Reply Quote Andrew Rolland Report Post Thanks(0) Quote Reply Posted: 22-October-2011 at 14:37
	Afsar See here for pictures on what the inside of my SE bumper looks like and how it's held on to the car. The MSport bumper shouldn't be that much different. Hope this helps Andrew
	Be exclusive and drive a Petrol 5 Series! Current '13 62 F10 535i MSport Auto Previous '04 04 E60 545i SE Auto '03 53 E60 545i SE Auto (Stolen) '98 S E39 523i SE Auto