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Sunroof Support Arms Cracking
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Robbie
 


Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932

United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4
Sunroof Support Arms Cracking

I never usually open the sunroof but I had it open today to rod-out the drains with a net curtain wire (yep, had the sudden rush of water after a downpour - landed on the wife). I noticed that the black plastic support arms that hinge up our of the runner are cracking in major way in more than one place.

I shut the roof with due dread but it seems to have shut ok, but they will need fixing. Given that roof only gets opened to be serviced or for drain access I am rather surprised that the arms have failed in such a way.

Does anyone know how to fix them and rough idea of the costs? I'm not that gifted with such repairs but the dealer prices are a good encouragement!  
Post #67520022nd Jul 2010 6:27 pm
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Stu
 


Member Since: 08 Feb 2009
Location: Hampshire
Posts: 2423

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Spotter had this recently and I believe it cost over £600 to get sorted Shocked

Sorry to be the bearer of doom. D3 HSE MY05 Auto

Expo Rack, Club MTR, LR Spots, A Bar, Light Guards, GNVP Sump Guard, GNVP Ladder, Cup Holders, RLD A Bar brackets. Disco3Club stickers, Aux power on Mod  
Post #67523022nd Jul 2010 7:48 pm
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Ian 2206
 


Member Since: 30 Oct 2006
Location: Hertfordshire
Posts: 114

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

I've had 2 roofs replaced under warrantly for the same reason.....I put it down to driving with the roof open and that viration from the glass roof into the arms was causing the damage to the arms. I'm surprised therefore to read Robbies comments that he doesnt open the roof, and thus that the arms will fail statically. D3 HSE, Stornoway grey, 2007 MY, side steps, privacy glass, door protection strips.  
Post #67549623rd Jul 2010 12:32 pm
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Robbie
 


Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932

United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

I guess that in the last 5 years i have only had the roof open on about 4 occasions. Three of those to check the mechanism was correctly greased and free running and the last time to rod the drains. The cracks are odd in that the fractures are in more than 1 location and the fissures themselves are highly serrated. It looks like the polymers themselves have broken down in the same way that some cheap plastics can be damaged by UV.

It's a poor selection of material by LR but with no warranty I am still hoping that someone on here will have fixed them themselves and have the know-how and parts list.  
Post #67581724th Jul 2010 9:29 am
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