We became friends with my amber triangle, as long as there is no other underlying problem for it to appear I am ok. It just comes and says hello here and there because of the water in fuel none sense of a sensor  Range Rover 2012 4.4 TDV8 - current
Range Rover 2008 3.6 TDV8 - previous
Range Rover 2004 3.0 TDV6 - previous

Hello All,

After being in the Arctic in winter I had one or two water in fuel warnings.
During fueling while it snows I've seen some snow flakes fall into the fuel opening and after driving on snowy roads there's always snow packed behind the fuel cap so I was accepting the warning.
They also disappeared on their own after an ignition cycle.

Recently, almost commuting between Mainz and Amsterdam every weekend, I've had the warning too, 3 times, WITH the Restricted Performance triangle.
Usually right after a cold start.
The car doesn't actually seem restricted, not like a RP that's turbo change-over valve related (had that too after being parked in -15C for days, also disappeared by itself after a warmed up car and an ignition cycle)
Using a fair amount of fuel the last couple of weeks I could not 'accept' there was actually water in the fuel.

As far as I read the WIF sensor detects a change in resistance between diesel (high resistance) and water (low resistance)
To me, a proper ground of the housing would make the resistance to ground (if i measures that way) lower, and that's not good.

The comments about using vaseline on the contacts triggered a memory seeing 'grease' on electrical connectors before, in other cars.
Some googling gave me Dielectric Grease.
As that's silicone based it may be a better option than vaseline (oil based) when it comes to longevity.

So that's what I'm going to try soon, it makes sense.
A 'short' between contacts lowers resistance making the ECU think "Water!"
I will report back  2012 4.4TDV8
2000 Honda S2000

Last Sunday, after a 470km drive, it popped up again!
Parked the car, put luggage inside, started the car to put it in the proper parking spot: RP warning that turned out to be P2264...
Monday off work, no driving.
This morning I cleared the code, no code during afternoon commute.
This evening I put some silicone (dielectric) grease on/in the plug.

Days without WIF error: 1 2012 4.4TDV8
2000 Honda S2000

Finally changed the whole fuel filter house at a shop 200k used part all together with work. Happy again….after many years being friend with my amber triangle, we apart our ways. Shop told me this WIF issue seems harmless but eventually causing dpf regen issue, it will not do regen with this error code….i actually had few of those amber dpf fulls in the past 2-3 years but burned it by driving in the highway for 10-20 min, now that I am thinking I have always cleared the WIF errors before I went ahead to drive to clear DPF error. Time will show, we shall see if the shop is right…any thoughts? Range Rover 2012 4.4 TDV8 - current
Range Rover 2008 3.6 TDV8 - previous
Range Rover 2004 3.0 TDV6 - previous

200k=$200 Range Rover 2012 4.4 TDV8 - current
Range Rover 2008 3.6 TDV8 - previous
Range Rover 2004 3.0 TDV6 - previous

The error seems to be weather related, imo.
As if a higher humidity triggers the fuel-in-water error.

The dielectric grease on the filter plug didn't work for me.
The error returned 4-5 times since my past post. 2012 4.4TDV8
2000 Honda S2000