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Thread: Interesting discovery... input appreciated...

  1. #1
    Join Date
    Oct 2016
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    Interesting discovery... input appreciated...

    So, I was under my car and noticed the aluminum plate under my car was scratched and somewhat dented. Since this is my garage queen, I ordered part number 51717028893 (Front Protective Skid Plate) which looked like it (thankfully, I got it on clearance from RM European for $600 less than everybody else)--note that the part is guaranteed to fit my 330i by all websites. Well, it came in, and the first thing I noticed was that this plate is solid steel and pretty heavy. Then I go to replace it, and I notice it ain't nearly the same part real quick--"WTF", I say. Well, upon further investigation, I realize the part I wanted to replace is actually 51717028433 (Front Subframe Brace). But now I wonder where the hell is this part I just ordered on my car? I found holes that line up with the holes in the plate, so it looks like it's supposed to go up right behind the aluminum "Front Subframe Brace"--NOT just behind the bumper as seemingly indicated by Real OEM. My questions:

    1) What do people think of the fact this plate is apparently missing from my 2004 330i ZHP?

    2) Real OEM seems to indicate the fasteners required to install the skid plate are 2ea of PN 51711909942 (Blind Rivet Nut, Flat Headed) and 2ea of PN 31101096987 (Hex Bolt with Washer, M10x55), but that seems to be missing 2 sets of fasteners. What the hell am I really supposed to use to fasten this plate to my car?!

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    Any help would be much appreciated!
    Last edited by Reasoned1; 09-25-2017 at 03:47 PM.

  2. #2
    Join Date
    Aug 2014
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    Leesburg, VA
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    760
    Front aggregate protective plates are optional items, used to protect the oil pan, and other low bits. Here's the one for the E28:
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    2006 330ci ZHP - Silbergrau Metallic / Stoff Laser/Anthrazit / Alu Black Cube trim / Adaptive Xenon headlights / HK hi-fi system / heated front seats

  3. #3
    Join Date
    Nov 2016
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    Charlotte, NC
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    That's a part that went on the rough road 330xi's. It'll fit, but you definitely don't need it unless you're rally racing.

  4. #4
    Join Date
    Oct 2016
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    Thanks, guys--that's $355 down the drain. I definitely don't want to throw an uneeded 20 pounds on my car. I wonder, though, if it would add any rigidity?

  5. #5
    Join Date
    Aug 2014
    Location
    Leesburg, VA
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    760
    Quote Originally Posted by Reasoned1 View Post
    Thanks, guys--that's $355 down the drain.
    Pass it on to a "stancer" who needs the protection.
    2006 330ci ZHP - Silbergrau Metallic / Stoff Laser/Anthrazit / Alu Black Cube trim / Adaptive Xenon headlights / HK hi-fi system / heated front seats

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