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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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Old 01-01-2010, 09:43 PM
Spokane540ia Spokane540ia is offline
I need to replace what?
Location: Spokane, Wa
Join Date: Jul 2008
Posts: 430
Mein Auto: 2002 540i
Info about front wheel liner

I'm not sure how to ask this, have searched realoem.com and Bentley...Haven't really found the part...

There is a front wheel liner, on the front of the car under the wheel area, directly in front of the tires, which looks like a mudflap, in reverse. The "flap" is on the front side of the tire. I am wondering what is this for?

What is it supposed to do?

So far, for me, it has been a part I have broken when hitting a parking curb, twice. It sits beneath (lower), and behind, the front bumper, in front of the tires. I've also shredded one by making right hand turns (maybe it was installed incorrectly).

Thanks in advance, and Happy New Year!

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Old 01-01-2010, 10:38 PM
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POof540i POof540i is offline
^^^Worst Username Ever!
Location: Earth
Join Date: Aug 2007
Posts: 1,381
Mein Auto: '01 540iA
You mean this part? http://www.pelicanparts.com/cgi-bin/...0%29%2C%20Each

"The more you know, the more you don't know," Dave Chappelle
"Man is an emotional animal, occasionally rational; and through his feelings he can be deceived to his heart's content"-Durant

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Old 01-02-2010, 07:55 AM
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QSilver7 QSilver7 is online now
Officially Welcomed to the 'Fest
Location: Northeast Indiana
Join Date: Aug 2008
Posts: 7,114
Mein Auto: 1997 740iL / 2006 X5 4.4
My assumption is that the flap is probably used to divert air either under the car or to the brakes for cooling. I'm sure that when the car was in development and they had it in the "wind tunnel" checking how air flowed over & around the car...this little flap was probably designed to affect air flow.

Again, just an assumption on my part..but if it's not for air flow...perhaps it's purpose is a pseudo "plow"....for when there's snow on the ground...this little flap scraps away enough snow in front of the wheels to prevent the car from being bogged down.

Q {BMW CCA Member #191509}
2006 E53 X5 4.4i (Sterling Gray) 12/05 mfg date <<~>> 97 740iL (Arctic Silver) 3/97 mfg date
99 540iT (Orient Blue) <<~>> 95 525IT (Alpine White)
91 735iL (Schwarz Black) <<~>> 85 325e (Bronzit)


Last edited by QSilver7; 01-02-2010 at 07:58 AM.
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Old 01-02-2010, 12:08 PM
Spokane540ia Spokane540ia is offline
I need to replace what?
Location: Spokane, Wa
Join Date: Jul 2008
Posts: 430
Mein Auto: 2002 540i
Yes, that is the correct part #. I also found it called rock shield and air guide. So who knows?

Q, I doubt it is a snow plow. That only comes on the touring...you would have known that
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Old 01-02-2010, 01:00 PM
edjack edjack is offline
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Location: San Jose, CA
Join Date: May 2007
Posts: 11,288
Mein Auto: '97 540i 6 speed
Aero aid.

Ed in San Jose '97 540i 6 speed aspensilber over aubergine leather. Build date 3/97. Golden Gate Chapter BMW CCA Nr 62319.
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Old 01-05-2010, 03:16 PM
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abanjableu abanjableu is offline
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Location: Eastern PA
Join Date: Feb 2009
Posts: 755
Mein Auto: 02 540/74 911/01 Z3(hers)
I had those on the e38 I had...ripped them off every 3 months and finally I couldn't get them to hold in place without screws. Way more road/wind noise with them missing.

Sadly, the front strip under my bumper on my e39 is a little brushed as well.
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