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Thread: how often are people replacing fuel filters

  1. #1
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    how often are people replacing fuel filters

    As the title says how often should a fuel filter be replaced, D4 3l,
    I get that over replacing is not good because it opens the system to contaminates but how long is to long.
    The reason I ask is the D4 has just had a service and pre trip inspection before we head off on a 15,000km trip towing the van, the fuel filter was not replaced and hasn't been for about 3 years but the last 2 years have seen minimal km
    Discovery 1 4.6, true trac front and rear, superior engineering arms,old tourer now bush toy
    Discovery 4 3.0 HSE MY13 ECB Bull bar, winch, spot lights, aux fuel tank, Kaymar rear bar, duel wheel carriers, 18 tuff ant wheels 265/65/18 BFG KO2's for play

  2. #2
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    I would have had it done,one less thing to worry about.

    Although they are sort of relatively easy to change,so maybe pack a spare for the trip.
    Paul

    D2,D2,D2a,D4,'09 Defender 110(sons), all moved on.

    '56 S1,been in the family since...'56
    Comes out of hibernation every few months for a run

  3. #3
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    I've done over 70k since buying my D3 and not changed it yet but will add one to my next parts order.
    MY08 TDV6 SE D3- permagrin ooh yeah
    2004 Jayco Freedom tin tent
    1998 Triumph Daytona T595
    1974 VW Kombi bus
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  4. #4
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    Quote Originally Posted by discomatt69 View Post
    As the title says how often should a fuel filter be replaced, D4 3l,
    I get that over replacing is not good because it opens the system to contaminates but how long is to long.
    The reason I ask is the D4 has just had a service and pre trip inspection before we head off on a 15,000km trip towing the van, the fuel filter was not replaced and hasn't been for about 3 years but the last 2 years have seen minimal km
    I change mine around 20-25,000 klms.
    If I were you I'd change it prior the big trip and definitely take a spare in the event you get some bad fuel.
    Before: Ser 2a LWB, Ser 3 S/W, 1979 RR 2 door, 1981 LR Stage 1 V8 (new), 1985 LR 110 V8 County (new), 2009 RRS TDV8
    Now: MY13 D4 TDV6. "E" rear diff. Cambo's magic Engine & Auto Tune.

  5. #5
    josh.huber Guest
    10 or 20k service for me. Usually depends on whether I have one on the shelf and the time.

  6. #6
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    Quote Originally Posted by discomatt69 View Post
    As the title says how often should a fuel filter be replaced, D4 3l,
    I get that over replacing is not good because it opens the system to contaminates but how long is to long.
    The reason I ask is the D4 has just had a service and pre trip inspection before we head off on a 15,000km trip towing the van, the fuel filter was not replaced and hasn't been for about 3 years but the last 2 years have seen minimal km
    I've done mine every 2years regardless of km. I use only Mahle filters. I'd strongly advise to change yours at that age and km, but not on your back in the sand on a 43deg day in Esperance (ask me how I know) they are easy to replace, just note that when you pull them off you do get the filter coming out full of diesel, so you will be spilling some as you have to tip it sideways to clear the crossmember and tank. A tip when you have a new one in, cycle the ignition a few times and let the lp pump in the tank prime the system again, this will limit any air pocket related engine stalls, these sometimes take a bit of cranking to get engine re started, and can put a bit of strain on your battery(ies)

  7. #7
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    I plan to change my fuel filter out every 50,000km. Every now and again I'll need to change it out early due to clogging, but I always travel with a spare as you never know when you'll get a load of dirty fuel
    Shane
    2005 D3 TDV6 loaded to the brim with 4 kids!
    http://www.aulro.com/afvb/members-rides/220914-too-many-defender-write-ups-here-time-d3.html

  8. #8
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    Quote Originally Posted by shanegtr View Post
    I plan to change my fuel filter out every 50,000km. Every now and again I'll need to change it out early due to clogging, but I always travel with a spare as you never know when you'll get a load of dirty fuel
    The other part is the sensor on the top fails and gives false readings cheaper to replace than repairs

  9. #9
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    Quote Originally Posted by crawal View Post
    The other part is the sensor on the top fails and gives false readings cheaper to replace than repairs
    ***** of a job to swap the whole assembly out, so I ended up swapping the water sensor between units. Best fix ever. I was constantly getting the water in fuel errors.

    I do my filter every couple of years or around 40,000km. I feel every time you open the sealed system you risk contamination so I try to not over service it.
    2010 TDV6 3.0L Discovery 4 HSE
    2007 Audi RS4 (B7)

  10. #10
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    I'll be the odd 1 out here, I've replaced mine once a year or two ago I've done 280K with a 2011 3L.

    It's never been a problem, Until I jinx myself of course!!

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