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Thread: Coupe Rear Window Shelf Rattle Solution, Kayger Style doityourself

  1. #1
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    Coupe Rear Window Shelf Rattle Solution, Kayger Style doityourself

    Was getting tired of the rattling, but didn't feel like tearing the rear of the car apart.

    I've read up thoroughly on the bolt mod, the tennis ball mod, and the stuff it with foam mod.

    I opted for the styrofoam cone mod. Picked three of these babies up at Michael's for a few bucks.

    Dropped the sub and wedged three of these puppies in there-- one on the outboard side of each speaker hole, and the third up against the tray that sits up against the rear window.

    Happy to report that the rattle is completely gone with no negative effect on sound as I didn't have to fill that acoustic cavity up with anything.

    Total DIY time was about five minutes.
    -Be yourself; everyone else is already taken.
    ZHP Pre-Ride Briefing

    2005 ZHP, Alcantara, Silver Cube, Nav, Sharked, BMW Perf Intake, BMW Perf CF Strut Brace, CF Valve/Fuel Rail Covers, Shadowline Grills, CF Splitters, Fog Light Inserts, LED Interiors/Plate Lights, Euro-mirrors, CDV Delete, Beisan vanos, GAS DISA, BP Coded

    2017 Alfa Romeo Giulia Q4; Sport Package, CW Package, Nav, Sunroof

  2. #2
    Join Date
    Jan 1970
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    Lebanon, OH
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    Cone mod by Malik FTW!
    "Flame suit NOT REQUIRED!!!"
    Call Me Dane l 2/2004 330i ZHP l 18x8 ET45 BBS CK's wrapped with Michelin Pilot Sport AS3+ @ 245-40-18 l KW V1 Coilovers in front l KW V1 springs w/ Bilstein B8 dampeners in rear l BMW Performance Rotors l UUC StrutBarbarian l Racing Dynamics Rear Strut Bar l Jim Conforti Shark Injector l Light Birch Interior Trim l Bimmian Celly Mount l M3 Trunk Mat l l e90 Performance E-Brake & Shift Knob l M3 Tri-Stitched Boots l AL Headlight Retrofit with ZKW Lenses l CobyWheel Wrap w/M3 Stitching l LCM sw 4.5 triple blink and rear fogs

  3. #3
    Join Date
    Jan 1970
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    Posts
    7,277
    -Be yourself; everyone else is already taken.
    ZHP Pre-Ride Briefing

    2005 ZHP, Alcantara, Silver Cube, Nav, Sharked, BMW Perf Intake, BMW Perf CF Strut Brace, CF Valve/Fuel Rail Covers, Shadowline Grills, CF Splitters, Fog Light Inserts, LED Interiors/Plate Lights, Euro-mirrors, CDV Delete, Beisan vanos, GAS DISA, BP Coded

    2017 Alfa Romeo Giulia Q4; Sport Package, CW Package, Nav, Sunroof

  4. #4
    Join Date
    Jan 1970
    Location
    Lebanon, OH
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    37,868
    Quote Originally Posted by kayger12 View Post
    +1
    "Flame suit NOT REQUIRED!!!"
    Call Me Dane l 2/2004 330i ZHP l 18x8 ET45 BBS CK's wrapped with Michelin Pilot Sport AS3+ @ 245-40-18 l KW V1 Coilovers in front l KW V1 springs w/ Bilstein B8 dampeners in rear l BMW Performance Rotors l UUC StrutBarbarian l Racing Dynamics Rear Strut Bar l Jim Conforti Shark Injector l Light Birch Interior Trim l Bimmian Celly Mount l M3 Trunk Mat l l e90 Performance E-Brake & Shift Knob l M3 Tri-Stitched Boots l AL Headlight Retrofit with ZKW Lenses l CobyWheel Wrap w/M3 Stitching l LCM sw 4.5 triple blink and rear fogs

  5. #5
    Join Date
    Jul 2011
    Location
    Bellaire, TX
    Posts
    2,324
    i did the tennis ball mod the other day but my rear deck still rattles like hell. i guess at this point the only solution is the complete backseat tear-apart and foam padding installation
    --Wes--

    04 330i ZHP Oxford Green/Natural Brown
    04 330Ci ZHP Silvergrey/Alcantara (RIP)

  6. #6
    Join Date
    Jan 1970
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    Quote Originally Posted by webster View Post
    i did the tennis ball mod the other day but my rear deck still rattles like hell. i guess at this point the only solution is the complete backseat tear-apart and foam padding installation
    Try the styrofoam-- if it doesn't work, worst you're out is 5 minutes and a few bucks.

    Hermes DIY is definitely the way to do it right. I just didn't have the time right now.
    -Be yourself; everyone else is already taken.
    ZHP Pre-Ride Briefing

    2005 ZHP, Alcantara, Silver Cube, Nav, Sharked, BMW Perf Intake, BMW Perf CF Strut Brace, CF Valve/Fuel Rail Covers, Shadowline Grills, CF Splitters, Fog Light Inserts, LED Interiors/Plate Lights, Euro-mirrors, CDV Delete, Beisan vanos, GAS DISA, BP Coded

    2017 Alfa Romeo Giulia Q4; Sport Package, CW Package, Nav, Sunroof

  7. #7
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    Jan 1970
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    32.8 N, 117.3 W
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    True, this will work also. The main issue is in the middle of the shelf where they didn't put enough padding. The tennis ball way works but not perfectly (you have to cut them to the right size). Styrofoam is better since it has more shape/strength to it. I've also heard of people who will stuff tshirts/towels in the cavity.

  8. #8
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  9. #9
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    Feb 2011
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    Deale, MD
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    You guys just need to turn down the subs!

    -Brettski

  10. #10
    Join Date
    Jan 1970
    Location
    Ocean County, NJ
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    Quote Originally Posted by ELCID86 View Post
    How big are those cones? (No perspective in the photo)
    They were somewhere around 6 inches.

    Still working flawlessly.

    Sent from my SCH-I535 using Tapatalk
    -Be yourself; everyone else is already taken.
    ZHP Pre-Ride Briefing

    2005 ZHP, Alcantara, Silver Cube, Nav, Sharked, BMW Perf Intake, BMW Perf CF Strut Brace, CF Valve/Fuel Rail Covers, Shadowline Grills, CF Splitters, Fog Light Inserts, LED Interiors/Plate Lights, Euro-mirrors, CDV Delete, Beisan vanos, GAS DISA, BP Coded

    2017 Alfa Romeo Giulia Q4; Sport Package, CW Package, Nav, Sunroof

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