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Loud Crack from rear roof?
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Heyloft
 


Member Since: 02 Apr 2006
Location: Derbyshire
Posts: 297

United Kingdom 2015 Discovery 4 3.0 TDV6 HSE Lux Auto Fuji WhiteDiscovery 4
Loud Crack from rear roof?

For the last few weeks, a few times during any journey, there is an almighty 'crack' sound coming from behind the driver and roof direction.

I have checked the roof glass and nothing is broken, but the sound suggested it was a major crack or the glass roof breaking free of its bonding. But obviously if it was either of these things I would only have heard it once.

I have searched the forum but haven't found anything similar.

Anyone?
 Wot's that in Old Money

Fuji White D4 HSE-LUX
rear entertainment
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Post #8133722nd Jul 2011 6:43 pm
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caverD3
 


Member Since: 02 Jul 2006
Location: Oberon, NSW
Posts: 6922

Australia 2012 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

Do you have roof rails/bars/roof rack?
 â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games”
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D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
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Post #8136114th Jul 2011 2:18 am
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Heyloft
 


Member Since: 02 Apr 2006
Location: Derbyshire
Posts: 297

United Kingdom 2015 Discovery 4 3.0 TDV6 HSE Lux Auto Fuji WhiteDiscovery 4

No bars or anything no.

It's a bit puzzling. Needs a bit more than SWIMBO investigating while I drive.
 Wot's that in Old Money

Fuji White D4 HSE-LUX
rear entertainment
TV
TPMS
Park Heater
Centre Console cooler box 
 
Post #8136174th Jul 2011 6:29 am
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John C
 


Member Since: 28 Aug 2007
Location: East Yorkshire
Posts: 3292

United Kingdom 2006 Discovery 3 TDV6 SE Auto Cairns BlueDiscovery 3

Something getting very hot in the sun, and then cooling/contracting when you drive?
 2020 SDV6 D5 HSE, Carpathian Grey +
2022 Tesla Model Y LR... almost Carpathian Grey
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Post #8136274th Jul 2011 8:18 am
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WOODY179
 


Member Since: 01 Jun 2005
Location: Chesterfield
Posts: 3654

United Kingdom 

Heyloft wrote:
No bars or anything no.


I thought all HSE's had roof rails as standard Confused
  
Post #8136284th Jul 2011 8:21 am
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RichardB
 


Member Since: 03 May 2010
Location: Hants
Posts: 485

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Nara BronzeDiscovery 4

Might be worth checking the roof rail or trim to see if it's loose. I could envisage one of these making a good crack if it's lifted up by the wind and slaps back down. Otherwise, puzzled
  
Post #8138134th Jul 2011 7:18 pm
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Stingray
 


Member Since: 03 Apr 2005
Location: North Wales
Posts: 218

Wales 2015 Discovery 4 3.0 SDV6 HSE Auto Aintree GreenDiscovery 4

I had this a while back, and it turned out to be a part-full bottle of water, expanding and contracting in hot weather. It made a surprisingly loud cracking noise, and appeared to be coming from high up, but was in fact in the rear door pocket.

Worth checking?

Ray
  
Post #8138364th Jul 2011 8:28 pm
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Heyloft
 


Member Since: 02 Apr 2006
Location: Derbyshire
Posts: 297

United Kingdom 2015 Discovery 4 3.0 TDV6 HSE Lux Auto Fuji WhiteDiscovery 4

I am going to empty EVERYTHING out. That way I exclude everything that isn't car related.

Next, going to check jack as that came out a while ago.
Also will check the rails just in case.

I'm not sure it's temp related as I just popped out in it (it's cool out) and heard the crack tonight.

It doesn't sound like a bottle expanding it's a sound related to a metal part of some kind. (yeh I'm not being very helpful) Rolling Eyes
 Wot's that in Old Money

Fuji White D4 HSE-LUX
rear entertainment
TV
TPMS
Park Heater
Centre Console cooler box 
 
Post #8139154th Jul 2011 11:18 pm
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Graeme K Gamble
 


Member Since: 11 Jun 2011
Location: llanelli
Posts: 4


Hi, did you find a fix for this noise? I posted a post last week "Loud Cracking Noise" which sounds very similar. Be interested to hear if you resolved it.

Thanks

Graeme
  
Post #85826712th Nov 2011 10:34 pm
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doubledoom
 


Member Since: 09 Jul 2010
Location: Lowestoft
Posts: 132

England 2011 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

I had something like this last year. I swore it came from the roof but actually it was a stop hitting the windscreen.
  
Post #85848913th Nov 2011 6:17 pm
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