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boode



Member Since: 11 Apr 2012
Location: Devon
Posts: 266

England 2003 Defender 90 Td5 HT Rutland Red
Water in Fuel warning light

The Dashboard symbol for "Water in Fuel" has lit up and is not going out
Its on my Td5 - although the instruction book does not list this warning as existing
It usually lights when deep wading through water but goes out when it dries out
Now however it is on permanently
Google search says disconnect sensor on fuel filter - but I can not see any sensor on my fuel filter (located by rear wheel)
Is this just water in electrics somewhere or should I be concerned ?

Post #592212 11th Jan 2017 6:42pm
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Theater



Member Since: 27 Sep 2010
Location: Pisa Italy
Posts: 410

Italy 2009 Defender 110 Puma 2.4 SW Galway Green

This is the sensor on fuel filter :


Click image to enlarge

Part Number : WKW500060 Marco

Defender 110 "SW" SE Galway Green MY 2009
Ex Defender 90 "SW" S Santorini Black MY 2010

Post #592338 12th Jan 2017 2:33am
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Fifth Horseman



Member Since: 08 Mar 2011
Location: Lanarkshire
Posts: 286

United Kingdom 2011 Defender 110 Puma 2.4 XS CSW Santorini Black

The sensor shown above is fitted to the fuel filter drain (water collects at the bottom of the filter).

If, as you say, you don't have a sensor then there should be a spare connector underneath the vehicle that it would plug into - your comment that the light used to come on when deep wading seems confirm this.

The connector is 3 pin (econoseal type I think):
1 - Orange/Green - to warning lamp
2 - Black - earth
3 - White/Green - 12v ign from fuse 8 (also feeds the rear wiper)

You will probably find it is full of muck, a good clean out should sort it, make sure the connector is well waterproofed afterwards.
If you decide to cut the connector off then seal the cable ends, preferably with adhesive lined heat shrink tubing http://www.ebay.co.uk/itm/Adhesive-Glue-Li...VLMu8OgKDA

If joining cables then best to use heat sealed crimps like this http://www.ebay.co.uk/itm/Fully-Insulated-...-enluz6sDw or the non-solder variety http://www.ebay.co.uk/itm/Tyco-Solder-and-...rh9P2cnjfA

Post #592368 12th Jan 2017 9:52am
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boode



Member Since: 11 Apr 2012
Location: Devon
Posts: 266

England 2003 Defender 90 Td5 HT Rutland Red

Fifth horseman - you are correct
I have no sensor - just a very dirty plug
I will clean, dry and seal it
Many thanks

Post #592378 12th Jan 2017 10:21am
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Theater



Member Since: 27 Sep 2010
Location: Pisa Italy
Posts: 410

Italy 2009 Defender 110 Puma 2.4 SW Galway Green

....or buy the sensor and you will know if you have water in fuel . Marco

Defender 110 "SW" SE Galway Green MY 2009
Ex Defender 90 "SW" S Santorini Black MY 2010

Post #592389 12th Jan 2017 10:46am
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boode



Member Since: 11 Apr 2012
Location: Devon
Posts: 266

England 2003 Defender 90 Td5 HT Rutland Red

Will the sensor fit on to a filter that has never had a sensor - or would I also need a new different filter ?
I also heard that the sensors were not fitted to post 2001 Td5 so the truck has never had one fitter
Is water in fuel an issue nowadays ?

Post #592393 12th Jan 2017 11:07am
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Theater



Member Since: 27 Sep 2010
Location: Pisa Italy
Posts: 410

Italy 2009 Defender 110 Puma 2.4 SW Galway Green

The sensor fits on your filter .

Remove the PLUG-DRAIN WATER (12) and and fit the SENSOR-WATER (3)

 Marco

Defender 110 "SW" SE Galway Green MY 2009
Ex Defender 90 "SW" S Santorini Black MY 2010

Post #592419 12th Jan 2017 1:25pm
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shaggydog



Member Since: 12 Aug 2012
Location: Kent
Posts: 3191

United Kingdom 1991 Defender 110 200 Tdi USW Arles Blue

I wouldn't bother, its a really annoying and distracting feature as it will flicker occasionally which is why LR dropped them. Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197

Self confessed mileage hunter Very Happy

Post #592438 12th Jan 2017 2:09pm
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Birdy



Member Since: 07 Oct 2011
Location: Great Yarmouth
Posts: 582

United Kingdom 2011 Defender 110 Puma 2.4 XS CSW Santorini Black

Personally I would bother, for once I can relate something positive. The warning light on my old TD5 came on, took it to the stealer, who undid the drain where mostly water poured out. Probably dodgy fuel, he suggested that before any drastic repairs I should fill the tank with new fuel, stop every mile or so on my way home and re-drain the it. Light went off never to be seen again...

But I wonder what would have happened if I'd continued with "watered-down" diesel?

Peter

Edited to add: mine was ROW spec; I wonder if they were fitted for markets where vehicles were more likely to be filled with dodgy fuel? Although this was in the UK!

Post #592443 12th Jan 2017 2:33pm
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rallysteve



Member Since: 10 Feb 2014
Location: Rotherham
Posts: 578

United Kingdom 2003 Defender 110 Td5 DCPU Chawton White

Retrofitted one to my 2002 TD5, has never falsly triggered the warning light. Peugeot diesels had these sensors fitted on fuel filters for years. I have had them several and they have illuminated a number of times when the filter contained water.

I would think it would be an advantage on a defender which is more likely to have a leaky fuel filler cap and travel through water than a mid 90s Peugeot estate!

Steve 02' 110 TD5 Double Cab

Post #592478 12th Jan 2017 4:16pm
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