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Wet headlining
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wormus
 


Member Since: 01 Mar 2009
Location: Bedfordshire
Posts: 149

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Orkney GreyDiscovery 4
Wet headlining

Hi, done a forum search but cannot find an answer.

My D4 HSE has started leaking presumably from the sunroof. The headliner bit around the center light is damp, along with the drivers sun visor (Rhd), and the water drips down the driver’s A pillar, onto the floor. I’ve replaced the exterior fixings on the A pillar trim and blocked off the top hole, but as suspected, the water seems to be coming from the sunroof. I’ve poured water into the sunroof cassette and it drains out quickly under the front wheel arches as it should. Any ideas before I start ripping the car apart?

Thanks.
  
Post #236278823rd Feb 2024 6:29 pm
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itsaguything
 


Member Since: 20 Dec 2023
Location: Manotick, On
Posts: 256

Canada 2015 LR4 3.0 SCV6 HSE Lux Auto Aintree GreenLR4

Yes... Unless you're certain its the sunroof, try pouring water over the top edge of the windscreen. It seems that there are a few more failures on the LR4 with the sealant around the rain sensor.

FWIW
 2015 LR4 HSE Lux Aintree Green
2013 LR2 HSE Radiance Red
2007 XKR Jaguar Racing Green
2005 XJR Jaguar Racing Green
2002 S-Type R British Racing Green 
 
Post #236279223rd Feb 2024 6:58 pm
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Nasher
 


Member Since: 07 Mar 2009
Location: Clanfield, North of Pompey - UK
Posts: 2813

England 2016 Discovery 4 3.0 TDV6 HSE Lux Auto Loire BlueDiscovery 4

Worth checking what I discovered on my D3 in this thread from @1/2 way down page 2:

https://www.disco3.co.uk/forum/topic152790...p;start=15
 Heaven doesn't want me, and hell is afraid I'll take over.  
Post #236279423rd Feb 2024 7:43 pm
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PROFSR G
 


Member Since: 06 Mar 2017
Location: Lost
Posts: 5043

Ukraine 2009 Discovery 3 TDV6 Commercial XS Auto Stornoway GreyDiscovery 3

+1 for Nasher's roof rail/seam leak. It seems the problem can appear either as Nasher found it, or slightly further back beneath the black roof rail trim. (small holes in the factory sealant Rolling Eyes )

A thorough surface clean of the rail and existing sealant (but not removal!) and then a thin smear of Tec7 or similar will sort it. Thumbs Up
 yµ (idµ - eAµ) ψ=mψ

 
 
Post #236279624th Feb 2024 1:57 am
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wormus
 


Member Since: 01 Mar 2009
Location: Bedfordshire
Posts: 149

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Orkney GreyDiscovery 4

Nasher wrote:
Worth checking what I discovered on my D3 in this thread from @1/2 way down page 2:

https://www.disco3.co.uk/forum/topic152790...p;start=15


Thanks for the suggestion, you were right! I removed the rail and removed the a pillar trim. Jammed a sheet of dry kitchen roll in the corner, shut the door and poured water into the gulley where the rail goes. Hey presto, wet kitchen roll. Isolated it to the bottom inch, just above the windscreen so dug out some of the old, sealant and put in some Plastic Padding leak sealer I had lying around. There was a good 1mm gap between where the roof and side panel have been welded together, which I thought was a bit shoddy. Looks like the sealant they used shrinks and cracks over time which is why it starts leaking, hopefully this has fixed it.

Click image to enlarge


Looks a bit messy but all I've done is smeared new sealant over the old, cracked stuff. Where I could, I dug out the old stuff with a screwdriver.
  
Post #236282324th Feb 2024 2:13 pm
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itsaguything
 


Member Since: 20 Dec 2023
Location: Manotick, On
Posts: 256

Canada 2015 LR4 3.0 SCV6 HSE Lux Auto Aintree GreenLR4

Guys, Thanks for the insights!
Jeepers, I may have to start a youtube channel like LRTime with the growing list of “check this and that”.
 2015 LR4 HSE Lux Aintree Green
2013 LR2 HSE Radiance Red
2007 XKR Jaguar Racing Green
2005 XJR Jaguar Racing Green
2002 S-Type R British Racing Green 
 
Post #236284925th Feb 2024 1:51 am
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