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Flood / Sunroof leak?

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Johnny Oxford

Member Since: 14 Dec 2014
Location: Chinnor
Posts: 531

2014 Discovery 4 3.0 SDV6 HSE Auto Corris Grey

I was happy with my solution, and decided to implement the same on the driver side - also eliminating the problematic rubber elbow.

First test is promising, just poured a 2 litre bottle of water into the sunroof gutter and all of it quickly drained out of both of my new exit pipes.

Now waiting for heavy rain for the real test and to find out if I have further leaks or not.

All the trim and carpets are still up/off as it's going to take some time to dry out - dehumidifier is on 24/7 now.

Here's the driver side pictures.

Hopefully this will help someone else as this seems to be a perennial problem.

This method allows both pipes to be replaced without the need to remove the CJB / fusebox which is a massive win as from all I have read it's a pig of a job and fraught with risk of electrical gremlins etc.

Click image to enlarge

2014 D4 HSE Facelift Corris Grey

Previous :

Discovery Sport SE (awful)
56 plate D3 HSE TDV6 Zermatt Silver
Defender 90 200tdi

Last edited by Johnny Oxford on 30th Sep 2024 4:43 pm. Edited 1 time in total

30th Sep 2024 3:49 pm

Johnny Oxford

Member Since: 14 Dec 2014
Location: Chinnor
Posts: 531

I also removed these 2 polythene bags stuffed with a triangle of foam from the inner wings (accessible through the side vents) - I can only imagine that they are for sound deadening?

The passenger one was holding about a litre of stagnant water, which I can't imagine is doing any good for anything.

Click image to enlarge

2014 D4 HSE Facelift Corris Grey

Previous :

Discovery Sport SE (awful)
56 plate D3 HSE TDV6 Zermatt Silver
Defender 90 200tdi

30th Sep 2024 3:52 pm

itsaguything

Member Since: 20 Dec 2023
Location: Manotick, On
Posts: 262

2015 LR4 3.0 SCV6 HSE Lux Auto Aintree Green

Nicely documented. Thank you. 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

18th Oct 2024 1:19 pm

HairyFool

Member Since: 04 Jan 2023
Location: North Essex
Posts: 704

2016 Discovery 4 3.0 SDV6 Landmark LE Auto Zanzibar

How good a fit is the scuttle (the plastic trim panel that the wiper shafts come through) top rubber edge against the glass? Also remove the pollen filter from above the fan casing behind the glove box and see if it is wet?

When the scuttle panel doesnt seal against the glass water can run down behind and onto the panel behind and run across to the passenger side. The front lip that it runs off is over the cabin air intake and doesn't project far enough forward to miss the intake. Water then run into the pollen filter and into the cabin.

The fix is to stick a piece of plastic ( I was advised the side of a milk bottle on here) under the lip to extend it further forward so the overspill misses the air intake and drains outboard, under the car instead of in it!

It worked for me, the trouble is I had gone to the hassle of removing the CJB only to find the hose was ok.

A visitor from the dark side, my other vehicle is an is still an EV. Strictly speaking its SWMBO.

18th Oct 2024 2:27 pm

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