Water in Diesel fuel warning light.
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Thread: Water in Diesel fuel warning light.

  1. #1
    Tadpole
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    Sep 2012
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    Vasse
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    Default Water in Diesel fuel warning light.

    We are about to take off on a 1000-1500 trip early tomorrow a.m. When moving the car to load up I noticed that a "Water in Diesel" warning light comes on, ( shows as fuel bowser with rain drops !) . Referred to owners manual which says "Contact Peugeot dealer " !! which is 500k round trip. Does the warning light mean there is water in the fuel filter and /or water in the tank, which is still half full or does the warning light mean the filter has captured and prevented water getting through to the engine. Is it safe to drive car ? The warning light comes on when ignition is turned on and goes out when vehicle is started !Help !!

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    Last edited by Barty; 13th February 2018 at 12:14 AM.

  2. #2
    Fellow Frogger
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    The sensor that detects this will be in the fuel filter, but that doesn't guarantee the tank is free of water. I don't know which model you mean, but you can generally drain fuel from the filter housing mounted on the engine. Try running some fuel out of it into a cup and see if there is any water present. It is designed to accumulate any water in the bottom of the filter housing. The sensors can age and give false readings too, so it may be there is no water and the sensor should be replaced.

  3. #3
    Tadpole
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    Thanks David, the Pug is a 2012 308 Hdi Touring , 12/12 compliance bought new, first service done Jan 2013, now done 58,000k"s. Last service done at 48,000k"s. To a layman is it a fairly simple procedure to drain some fuel from the filter and inspect.

  4. #4
    1000+ Posts
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    The 2.0 HDI engine (RHH) has a clear plastic drain tube that gets hidden in the other stuff. The screw is at the front bottom of the filter. It may help to open the air vent on top - if you do, hand pump any air out again.

  5. #5
    Tadpole
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    Thanks fellas for the input. Will look at filter over the weekend. Took the Toyota Corolla away on trip, never missed a beat as usual, and left the Pug in the garage !!
    Wildebeest likes this.

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