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#57 of 166 2010 Volkswagon CC exploding sunroof
Dec 19, 2010 (8:35 pm)
While driving down the highway the sunroof of my VW CC exploded upward. It sounded like a gun shot. Very loud and the entire glass shattered with pieces of glass flying up and out of the vehicle, as well as within the car.
#58 of 166 Exploding Sunroof: 2004 Chevy Avalanche Pickup
Jan 01, 2011 (1:46 pm)
I was very surprised to discover that my sun/moonroof glass seemed to explode unknown to me sometime in last 24-48 hours. The ambient temperatures have been 20-50F mostly in winter, some snow sinc e Christmas, no heat, no noted trauma to roof, maximum speed in Surburban driving 0-45 MPH, sunroof not opened since some months ago....and suddenly heard what sounded like gravel in roof, and when sunscreen indoor electric opener activated, I could see small rounded fractured glass shards from roof. When inspected from outside, above..it appeared to have bubbled/exploded outward, sometime in last 1-2 days, unknown to me..I heard nothing while driving, was hit by nothing, and first sign of trouble was gravelly sound in roof of truck cab.....from glass shards..the outward bubbled fractured glass to the right of the midline, anteriorly with fragmented glass causing defect in about 15% of the roof. my auto insurance's glass warrenty pays for all minus a $100 deductable...awaiting for a reservation for their repair... Very Strange event.....as all of the other reports of this kind of incidence..seems not unique to any single brand or model....just happens...hmmmmmm
#59 of 166 Re: sunroof exploded [rgarza4x4]
Jan 22, 2011 (3:30 pm)
I like your explanation. We just had the sunroof on our 2007 CX-7 explode. There were no cars in front, behind, or passing us at the time. It was a cool day and we had just the normal heat on inside and had been driving around town for most of the day at moderate speeds. About 5 to 10 minutes before the explosion, we did here what sounded like a rock hitting glass as we were driving on the interstate at about 65 - 70 mph but we didn't see any damage to windshield or other glass at that point. We were startled by the loud noise. It sounded like a gun shot to us and I wondered if we'd been shot. I stopped just a block down the road to inspect the damage. There was a big hole in the sunroof glass and large chunks and chards of broken glass had been blown mainly into the back seat with finer pieces flying all over the two of us in the front. The remaining glass was broken and protruding upward as if pressure from inside the car blew it out. We immediately called our insurance company then took the car to the local Mazda dealer. The Service Manager said he'd never seen this type of sunroof explosion before. I took photos and left the car with the dealer for repair. There was no damage to frame or exterior of car that we noticed. Our insurance said this is 100% covered with no deductible.
#60 of 166 05' Accord Exploding sunroof
Feb 08, 2011 (9:22 am)
Mine blew up yesterday. In traffic at low speed. No way anything hit it. I keep seeing people talk about cabin pressure being a possibility but it would blow your eardrums before it blew out a window. The other thing I've seen alot and even had the dealer suggest to me is that it might have been an electrical issue. When I asked for an explanation for how an electrical issue could blast out a sunroof their response was "well, we need to take a look at it before we can determine the cause" Then they act like I'm lying to them when I say nothing hit it. What possible reason woud I have for lying about something as stupid as this ? AND Lets say I had been doing 60 - 70 mph down the highway and a rock fell off a truck or something. It would have to be small enough for me to not see it but large enough to bust the glass AND hit it at an angle that would break it, which at that speed would be damn near impossible especially since it was closed. All that aside, We were doing 15-20 in traffic and everyone was too close toghether for anything to have bounced off the road. Early morning so the sun was not a factor. my best guess is somethings bad in the glass making or framing process. Just a theory though. Insurance claim. 100$ deductable. Weak.
#61 of 166 Re: 05' Accord Exploding sunroof [pga1969]
Feb 08, 2011 (10:02 am)
I had it happen a while ago and have posted on this forum. I did some research and found documentation that this is a property of tempered glass. It is well known in the industry. One in every so many thousands units of glass that are produced have undetectable defects that cause the glass to explode. It can happen up to ten years after the glass has been manufactured. It is not limited to automotive applications. A friend of mine had it happen with a shower enclosure. He had just renovated his bathroom and fortunately was in another room when he heard what sounded like an explosion. The shower door shattered spontaneously - there was nobody in the room - and flew like shrapnel, damaging the newly installed woodwork.
I have an architectural industry report on this, but there doesn't seem to be a way to include an attachment here. If anyone can figure that out, I'm happy to share it.
#62 of 166 Re: 05' Accord Exploding sunroof [ajgrantcsh]
by Kirstie@Edmunds HOST
Feb 08, 2011 (10:56 am)
For a variety of reasons, we can't accept attachments within messages. However, if you have a link to the report and it's located somewhere online, you are welcome to post a link to it.
#63 of 166 Re: Exploding Rear Glass 2009 Scion Tc [rocco1951]
Feb 24, 2011 (9:17 am)
i had almost the same thing happen to my sunroof today. driving 65 mph when the sunroof exploded. sunroof was closed. when i stopped the deflector shield was up??? and the two side metal frames were no longer attached to glass. thank you for your post. hope i can get this paid for! is anyone else having problems out there????
#64 of 166 2011 Chrysler 200
Mar 11, 2011 (12:39 pm)
We drove our car off the lot less than 24 hours ago. My husband was driving on the highway, normal speed. It was raining, about 50 degrees, so he had the sunshade closed. Heard a loud boom, opened the shade to find the moonroof basically gone, with shattered glass pointing upward. Drove immediately to the Dealership where all of the staff has never seen anything like it. The Chrysler Warranty Rep on site coincidentally. The Dealership kept the car, will fix the roof and areas of dented/scratched paint and immediately gave my husband a rental car at their expense. Very scary and thank god no one was hurt, luckily light traffic. So far the Dealership has been great.
#65 of 166 Re: 05' Accord Exploding sunroof [kirstie_h]
Mar 11, 2011 (3:14 pm)
Unfortunately, it's no longer available online. If you can figure out a way for me to share it, I'm happy to do so. I think this report answers most of the questions in this thread.
#66 of 166 Re: 2011 Chrysler 200 [llevesque]
Mar 12, 2011 (2:10 pm)
I just heard about this. Up until now I never heard of such a thing. Leave it to W.L. There was a post about defective tempered glass that sound like it could be a very possible cause. Hope everything turns out OK with the car.