Exploding Rear windows.

Gambo65 · 28th April 2008, 11:50

hello, new to this so bear with me. Thanks

I have a 2.2CTDI EX whose rear screen has just exploded outwards whilst parked in my office car park!!

Any others, is this a oneoff or is there a problem that we should all know about?

Gambo

NH Dan · 28th April 2008, 12:24

can't honestly say i've heard of this before.

You say as you were parking?? nothing to do with shutting the tailgate?

NEEMSTAR · 28th April 2008, 12:33

NHDan it says he was parked - meaning he might not of been nowhere near the car
that is worrying

NH Dan · 28th April 2008, 12:35

didnt read it properly sorry, so parked unattended and it 'exploded'???

Nope, NEVER heard of that before.

Gambo65 · 28th April 2008, 12:37

No the car had been parked for about an hour, interestingly, on earlier threads, people were discussing the rear heater element.
I have been out to tape up the window(raining now!!) and the rest of the screen that is left is warm, no ignition key in at all.

Dealer says it cannot happen and has recommended the AA come and check.!?!

Quote:

Originally Posted by NH Dan

can't honestly say i've heard of this before.

You say as you were parking?? nothing to do with shutting the tailgate?

amronno · 28th April 2008, 12:39

Sorry to hear about your misfortune.
To my knowledge there has never been such an incident before.

Let's just hope it is a one-off.

Guitaralmond · 28th April 2008, 12:40

did it have a hard day?? maybe was just blowing off some steam...

Palindrome · 28th April 2008, 13:43

Hiya,
Sorry to hear your news I've only come across this once before(not on a Honda I hasten to add) and was suspected to be a poorly fitted screen and extreme tempreture changes from a frozen screen when the heated screen is turned on.

I doubt you had this kind of temp in Northants recently and the dealers would have a very difficult if not impossible time proving to Honda a vehicle defect, even if it was and not external forces at play!

Again, sorry to hear your news, not sure on the cost of a replacement but you may be able to claim it through your insurance if it's very expensive!

Unknownsoldier · 28th April 2008, 14:11

Is it a decent area your in? Could it be some little b*gger with an airgun???? Does the glass have 'fracture marks' (marks on the broken edges??), and is the from what was left, any visible 'pattern' (like below, this typical of a stone or airgun pellet, a radiating pattern, and it should appear quite obvious if part of the glass is in place).

Anyone know if the rear window is tempered/laminate etc. etc.

Tom

Kremmen · 28th April 2008, 14:28

Good point

Even though the glass exploded outwards, this could be because the glass is convex.

Some little git with an air rifle could be a possible cause, but why just one car out of many in a car park?

allan40alt · 28th April 2008, 14:53

I did a google search and there's pages of incidents.

Have a look here at this one:

Exploding Glass </head>

pcr · 28th April 2008, 15:36

If there is no apparent obvious cause, it may be possible for excessive twisting in the body of the car to crack windscreens.

Unknownsoldier · 28th April 2008, 16:43

Quote:

Originally Posted by Kremmen

Good point

Even though the glass exploded outwards, this could be because the glass is convex.

Some little git with an air rifle could be a possible cause, but why just one car out of many in a car park?

Probably just 'plinking' (shooting for fun, with no real 'aim', no pun intended

). Did people go and look when the window went if so, perhaps they got frightened off???? I mean shooting at empty cars is one thing, to shoot at people, quite another. If anyone has any spare convex glass, maybe we could conduct a test???

Tom

l-noel · 28th April 2008, 17:13

Quote:

Originally Posted by allan40alt

I did a google search and there's pages of incidents.

Have a look here at this one:

Exploding Glass </head>

Very interesting, did'nt know it can happen. I was thinking, like the others, that someone broke it just for fun....

I'm sorry for you Gambo65. I hope you can convice your dealer or honda to take it as a waranty claim.

Unknownsoldier · 28th April 2008, 17:22

After reading that page, I am rather sceptical of some theories put forward, especially those of sonic resonance, it would have to be maintained for quite a while at the precise frequency where all the molecules vibrate together, possible but IMHO unlikely (otherwise other glass would have surely gone).

Tom

civicfan · 28th April 2008, 17:49

If it is certain that it exploded outwards, it can only be faulty material I guess - otherwise I would look for a bullet in the car (no joke - one of my colleagues once shot his own car with a ricochet at a shooting range, though it was parked some 500 m off)

R-2 · 28th April 2008, 18:24

Toughened glass is cooled at different rates - the surface being cooled more quickly. This puts the whole glass sheet under tension which gives it its strength. Its the 'tension' in the glass that shows up as a pattern when you look at the glass through polarising lenses.

Any flaw or damage to the glass can release all this 'tension' so the glass explodes

I think......

Unknownsoldier · 28th April 2008, 18:36

I would concur with that.

Tom

Topcat · 28th April 2008, 19:07

Quote:

Originally Posted by R-2

Toughened glass is cooled at different rates - the surface being cooled more quickly. This puts the whole glass sheet under tension which gives it its strength. Its the 'tension' in the glass that shows up as a pattern when you look at the glass through polarising lenses.

Any flaw or damage to the glass can release all this 'tension' so the glass explodes

I think......

Yes R-2 that is why one of the inner panels exploded on one of my double glazed windows, or so I was told

ITSRICKSCIVIC · 28th April 2008, 19:24

TC do you have any luck with anything

I used to have the misfortune of owning a renault megane (shaking its ass) that fractured the rear screen twice once quite dramaticaly his was put down to a electrical fault (IN A RENAULT NEVER) apparently the heated rear window switched itself on when it was raining,strange but true.

28th April 2008, 11:50	#1 (permalink)
Gambo65 Valve Cap Join Date: 28th April 2008 Location: Wollaston, Northants Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts iTrader: (0)	Exploding Rear windows. hello, new to this so bear with me. Thanks I have a 2.2CTDI EX whose rear screen has just exploded outwards whilst parked in my office car park!! Any others, is this a oneoff or is there a problem that we should all know about? Gambo

28th April 2008, 13:43	#8 (permalink)
Palindrome Also found in orange Triangular Exhaust Join Date: 19th January 2008 Location: Warwick,UK Posts: 218 Thanks: 1 Thanked 1 Time in 1 Post iTrader: (0)	Rear wind screen Hiya, Sorry to hear your news I've only come across this once before(not on a Honda I hasten to add) and was suspected to be a poorly fitted screen and extreme tempreture changes from a frozen screen when the heated screen is turned on. I doubt you had this kind of temp in Northants recently and the dealers would have a very difficult if not impossible time proving to Honda a vehicle defect, even if it was and not external forces at play! Again, sorry to hear your news, not sure on the cost of a replacement but you may be able to claim it through your insurance if it's very expensive!

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This thread is about: Exploding Rear windows., it's in General Discussion at the Honda Civic forum Civinfo; hello, new to this so bear with me. Thanks I have a 2.2CTDI EX whose rear screen has just exploded outwards whilst parked in my ...

28th April 2008, 12:24	#2 (permalink)
NH Dan Newton Honda Rocketship door handle Join Date: 31st January 2008 Location: South London,Uk Posts: 1,455 Thanks: 53 Thanked 61 Times in 54 Posts iTrader: (0)	can't honestly say i've heard of this before. You say as you were parking?? nothing to do with shutting the tailgate?

28th April 2008, 12:33	#3 (permalink)
NEEMSTAR Nobody gets out alive Rocketship door handle Join Date: 7th October 2007 Location: In your mind Posts: 1,540 Thanks: 36 Thanked 26 Times in 26 Posts iTrader: (0)	NHDan it says he was parked - meaning he might not of been nowhere near the car that is worrying

28th April 2008, 12:35	#4 (permalink)
NH Dan Newton Honda Rocketship door handle Join Date: 31st January 2008 Location: South London,Uk Posts: 1,455 Thanks: 53 Thanked 61 Times in 54 Posts iTrader: (0)	didnt read it properly sorry, so parked unattended and it 'exploded'??? Nope, NEVER heard of that before.

28th April 2008, 12:39	#6 (permalink)
amronno Calling Planet Earth... Magic Rear Seat Join Date: 8th August 2007 Location: Bergen, Norway Posts: 858 Thanks: 19 Thanked 11 Times in 11 Posts iTrader: (0)	Sorry to hear about your misfortune. To my knowledge there has never been such an incident before. Let's just hope it is a one-off.

28th April 2008, 12:40	#7 (permalink)
Guitaralmond Master of paint!! Triangular Exhaust Join Date: 9th January 2008 Location: Stoke-On-Trent Posts: 355 Thanks: 5 Thanked 7 Times in 7 Posts iTrader: (0)	did it have a hard day?? maybe was just blowing off some steam...

28th April 2008, 14:28	#10 (permalink)
Kremmen Krem de la Krem Civinfo guru Join Date: 7th January 2007 Location: West London Posts: 3,040 Thanks: 20 Thanked 24 Times in 23 Posts iTrader: (0)	Good point Even though the glass exploded outwards, this could be because the glass is convex. Some little git with an air rifle could be a possible cause, but why just one car out of many in a car park?

28th April 2008, 14:53	#11 (permalink)
allan40alt Supporter Civinfo guru Join Date: 6th August 2006 Location: Rugby, Warwickshire. Posts: 2,253 Thanks: 13 Thanked 33 Times in 31 Posts iTrader: (0)	I did a google search and there's pages of incidents. Have a look here at this one: Exploding Glass </head>

28th April 2008, 15:36	#12 (permalink)
pcr Magic Rear Seat Join Date: 5th September 2006 Location: Shropshire Posts: 850 Thanks: 0 Thanked 1 Time in 1 Post iTrader: (0)	If there is no apparent obvious cause, it may be possible for excessive twisting in the body of the car to crack windscreens.

28th April 2008, 17:22	#15 (permalink)
Unknownsoldier Esox Lucius Rules!!!!!!!! Civinfo guru Join Date: 22nd September 2007 Location: Kent, UK Posts: 2,745 Thanks: 78 Thanked 32 Times in 30 Posts iTrader: (0)	After reading that page, I am rather sceptical of some theories put forward, especially those of sonic resonance, it would have to be maintained for quite a while at the precise frequency where all the molecules vibrate together, possible but IMHO unlikely (otherwise other glass would have surely gone). Tom

28th April 2008, 17:49	#16 (permalink)
civicfan Supporter Magic Rear Seat Join Date: 13th September 2007 Posts: 802 Thanks: 8 Thanked 2 Times in 2 Posts iTrader: (0)	If it is certain that it exploded outwards, it can only be faulty material I guess - otherwise I would look for a bullet in the car (no joke - one of my colleagues once shot his own car with a ricochet at a shooting range, though it was parked some 500 m off)

28th April 2008, 18:24	#17 (permalink)
R-2 R-10581 Magic Rear Seat Join Date: 1st October 2007 Location: Worcestershire Posts: 807 Thanks: 27 Thanked 21 Times in 20 Posts iTrader: (0)	Toughened glass is cooled at different rates - the surface being cooled more quickly. This puts the whole glass sheet under tension which gives it its strength. Its the 'tension' in the glass that shows up as a pattern when you look at the glass through polarising lenses. Any flaw or damage to the glass can release all this 'tension' so the glass explodes I think......

28th April 2008, 18:36	#18 (permalink)
Unknownsoldier Esox Lucius Rules!!!!!!!! Civinfo guru Join Date: 22nd September 2007 Location: Kent, UK Posts: 2,745 Thanks: 78 Thanked 32 Times in 30 Posts iTrader: (0)	I would concur with that. Tom

28th April 2008, 19:24	#20 (permalink)
ITSRICKSCIVIC Supporter Locking Wheelnut Join Date: 12th July 2007 Posts: 121 Thanks: 1 Thanked 1 Time in 1 Post iTrader: (0)	TC do you have any luck with anything I used to have the misfortune of owning a renault megane (shaking its ass) that fractured the rear screen twice once quite dramaticaly his was put down to a electrical fault (IN A RENAULT NEVER) apparently the heated rear window switched itself on when it was raining,strange but true.