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Old 12-01-2014, 09:08 PM   #1
Scooby Newbie
Member#: 388484
Join Date: Apr 2014
Chapter/Region: RMIC
Location: Denver, CO
2015 WRX Base

Default 2015 WRX Interior Rear Deck Rattle Fix

My interior rear deck (one giant sheet of plastic) rattles like crazy at low rpm. I think I finally figured out what was causing it.

The third brake light.

To test:

Give anywhere on the rear deck a good whack and listen to the rattle. Then, lift the brake light off, and give it the same whack. The rattle should now be gone.

To fix:

1. Remove third brake light by lifting straight up. There are 2 tabs near the rear glass and one in the center on the other end.

2. What's rattling are those 2 tabs near the rear glass. It's a shallow hole that they fit into, so the tabs are touching the metal support beneath, causing the entire thing to vibrate.

3. Stuff holes with poly-fil or similar stuffing, use closed-cell foam tape, etc. Anything soft that doesn't collect moisture will do. You just need to have something between the plastic tabs of the third brake light and the metal support beneath.

Hope this helps someone out there!
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coldaudio is offline   Reply With Quote
Old 12-02-2014, 02:35 PM   #2
Scooby Newbie
Member#: 295900
Join Date: Sep 2011
Location: NorCal Bay Area
2015 WRX
World Rally Blue


Have the same issue. What I did was folded up a T-Shirt and stuffed it right on top of the rear third brake light so it sits between the light and the rear window and the rattle goes away.
diet is offline   Reply With Quote
Old 12-02-2014, 10:27 PM   #3
Scooby Newbie
Member#: 384203
Join Date: Mar 2014
Location: Washington
2015 WRX


Thanks for this.

Just stared to hear the obnoxious super loud rattle coming from the back. Was just about to ask someone to drive at low rpms with me sitting in back so I could listen to the noise.
bbop25 is offline   Reply With Quote

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