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deep river crossing water ingress
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macadamia
 


Member Since: 06 Oct 2021
Location: Victoria
Posts: 4

Australia 2016 Discovery 4 3.0 TDV6 Base 5 Seat Auto Fuji WhiteDiscovery 4
deep river crossing water ingress

I've been trying to track down where water is getting into the car and would appreciate advice from anyone else who's managed to seal up their D4 for deep wading.

I had a lot of water ingress after some deep crossings with water over the bonnet so was not entirely surprised it came it. I took the carpets out and found the captive nut mount points for different seat configurations were all un-plugged and open to the outside so I taped the unused ones up. I also suspected the water was coming up through the spare wheel winder into the cargo space so sealed that a bit better also.



This last weekend though with water only half way up the doors, maybe a foot below the door handles, not quite up to the wheel arches - so still well below the wading depth. Even after this I got home to find the door sill cable channels full of water and the underside of the carpets drenched from front to cargo area.

the cubbies, especially the left side, full of sand (was relatively clean prior) so there a relatively large area for sand and water to get into.


The wheel arch flare trim clips open straight into the inside of the car???


I know these trim clips also open to the outside from last time but hoped that a rubber washer between the clip body would have sealed it a bit better.


Where also should I be looking to improve wading ability while I have everything out and accessible?
 

Last edited by macadamia on 16th Jul 2023 10:54 pm. Edited 1 time in total 
Post #234222015th Jul 2023 6:50 am
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Mastertech
 


Member Since: 13 Apr 2014
Location: North East
Posts: 132

England 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

What about driving it through water with the interior out and someone in the back looking for the leaks?
  
Post #234222515th Jul 2023 7:49 am
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rrhool
 


Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4537

United Kingdom 2007 Discovery 3 TDV6 SE Manual Zermatt SilverDiscovery 3

It's not a boat!
Cars are not deigned to be water tight. There are holes and voids everywhere. In fact, the body is specifically designed to drain when it's dipped in the electrophoretic primer during manufacture. The sills have drain holes in, that have a direct open path to the A B & C posts. Doors are not sealed, trim clips are not sealed. The bulkhead is not sealed.

Either accept it's going to get wet, or don't drive in water that deep!
 Richard


D3 SE 2007. Triumph 2.5Pi 1973. Ferguson TEA20 1948.



Discovery 2 4.0 ES 2001- Gone
Discovery 1 300Tdi ES '95 - Gone
Range Rover Classic '79 - Gone 
 
Post #234223915th Jul 2023 9:27 am
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8243

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

Or buy a boat Laughing
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #234225915th Jul 2023 12:14 pm
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macadamia
 


Member Since: 06 Oct 2021
Location: Victoria
Posts: 4

Australia 2016 Discovery 4 3.0 TDV6 Base 5 Seat Auto Fuji WhiteDiscovery 4

rrhool wrote:
It's not a boat!
Cars are not deigned to be water tight. There are holes and voids everywhere. In fact, the body is specifically designed to drain when it's dipped in the electrophoretic primer during manufacture. The sills have drain holes in, that have a direct open path to the A B & C posts. Doors are not sealed, trim clips are not sealed. The bulkhead is not sealed.

Either accept it's going to get wet, or don't drive in water that deep!


sure. water over the bonnet I totally accepted water ingress. but at only half way up the doors, well below wade depth - I feel like wade depth should be achievable without water ingress.
  
Post #234229216th Jul 2023 12:12 am
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Pedros
 


Member Since: 25 Jun 2011
Location: Cumbria
Posts: 454

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Santorini BlackDiscovery 4

I kinda think you are taking wading depth figures past their limits. Search around for what the wading depth for a D4 is and limit your adventures below that. Or get some rubber ducks....
  
Post #234233316th Jul 2023 10:30 am
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NJSS
 


Member Since: 06 May 2009
Location: Catherington, Hampshire.
Posts: 10840

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4

Land Rover Wading Depths

Click image to enlarge


From:- https://www.landrover.co.uk/explore-land-r...epths.html

I have not checked recently, but IIRC the door handles are approximately 1,000 mm above ground level, so maximum wade depth about 10 cm below door handles.

NJSS
  
Post #234233516th Jul 2023 11:14 am
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DSL
Keeper of the wheelie bin 


Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73121

Ukraine 

If you wade too deep then water ingress will be the least of your worries as your car will start to float and go whichever way the water is flowing. You won’t be the first to suffer that fate. http://www.disco4.com/forum/binned-it-saga-45191.html?highlight= , and prob won’t be the last but we will say we told you so. Thumbs Up
   
Post #234233916th Jul 2023 11:36 am
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DIY Ace
 


Member Since: 06 Feb 2019
Location: Hampshire
Posts: 971

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

I thought the wading depth of the D4 and D3 is 700mm...
 2022 BMW i4 M50. Bought Oct 2022. 10,200 miles and counting...
2014 BMW 435d convertible. Bought July 2021. 58,000 miles and counting...
2005 Discovery 3 HSE Auto. Bought Feb 2019. 169,000 miles and counting...
2009 Freelander 2 XS Manual. Bought Sep 2013. SOLD Aug 2021 (already regretted!)

https://youtube.com/channel/UCO_u_0D45x9KGfiNstzLJnw 
 
Post #234234216th Jul 2023 11:55 am
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macadamia
 


Member Since: 06 Oct 2021
Location: Victoria
Posts: 4

Australia 2016 Discovery 4 3.0 TDV6 Base 5 Seat Auto Fuji WhiteDiscovery 4

NJSS wrote:

I have not checked recently, but IIRC the door handles are approximately 1,000 mm above ground level, so maximum wade depth about 10 cm below door handles.

NJSS

and what would a foot below the door handle be then?
macadamia wrote:

This last weekend though with water only half way up the doors, maybe a foot below the door handles, not quite up to the wheel arches - so still well below the wading depth.

Yawn

DSL wrote:
If you wade too deep then water ingress will be the least of your worries as your car will start to float and go whichever way the water is flowing. You won’t be the first to suffer that fate. http://www.disco4.com/forum/binned-it-saga-45191.html?highlight= , and prob won’t be the last but we will say we told you so. Thumbs Up


onya cobber Thumbs Up Thumbs Up Thumbs Up
  
Post #234240916th Jul 2023 10:59 pm
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Lightwater
 


Member Since: 21 Oct 2018
Location: Sydney NB
Posts: 97

Australia 

Mastertech wrote:
What about driving it through water with the interior out and someone in the back looking for the leaks?

Test it out at Cahills Crossing (Australia). If the leaks don't get you the crocodiles will. At least it will keep one focused on one of at least two issues!

P.S. A couple of bilge pumps from Whitworths Marine!
 Visitor - Freelander owner  
Post #234242417th Jul 2023 9:12 am
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macadamia
 


Member Since: 06 Oct 2021
Location: Victoria
Posts: 4

Australia 2016 Discovery 4 3.0 TDV6 Base 5 Seat Auto Fuji WhiteDiscovery 4

Lightwater wrote:
Test it out at Cahills Crossing (Australia). If the leaks don't get you the crocodiles will. At least it will keep one focused on one of at least two issues!

I tested it out crossing Nolans and the 100 other crossings in Cape York!

Lightwater wrote:

P.S. A couple of bilge pumps from Whitworths Marine!

I know you're probably joking but I've been thinking how I can rig up a couple of bilge pumps to pump for the two cable channels in the door sills that have been full of water that doesn't drain out and only sloshes into the carpet each time this has happened.
  
Post #234254918th Jul 2023 3:30 am
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RogB
 


Member Since: 15 Jun 2018
Location: Mansfield
Posts: 1738

United Kingdom 

have a look at youtube for 4WD 24-7

they are group of bonkers off roaders but the channel is really entertaining, some of the drives they do are unbelievable !!

on one of them they are driving through a very wet area out near the coast, and one of the vehicles actually has bilge pumps fitted, with the outlets coming out the custom rear side windows
 2011 D4 XS 305 MY12 - gone but not forgotten  
Post #234256918th Jul 2023 9:23 am
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JonM
 


Member Since: 24 May 2012
Location: North Yorkshire
Posts: 1247

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

DIY Ace wrote:
I thought the wading depth of the D4 and D3 is 700mm...


It is.

900mm is for the Discovery 5.

As a rough guide, 700mm is about 6cm less than the diameter of the standard 255/50R20 tyres.
 MY2022 D5 HSE D300 - with extra nice bits added
MY2019 D5 HSE 3.0 SDV6 - sold to a dealer for a crazy price! - So good I bought another!
MY2012 D4 HSE 3.0 SDV6 - retired to a new home
 
 
Post #234259218th Jul 2023 12:14 pm
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ronp
 


Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15269

Scotland 2014 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4

Electrics and breather pipes should be a serious consideration if wading over LR recommend depths.
 ...... always on the road less travelled 🚧

< ‘tis but a mere scratch …….. it’ll polish out. 
 
Post #234259618th Jul 2023 12:46 pm
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