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Old 07-17-2010, 08:45 PM   #1
echelon6
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Default Fuel filter - how to replace?

I ran a forum search on past threads and seems like everyone here thinks the Mazda 3 fuel filter is inside the gas tank and not meant to be serviced

But in my car maintenance manual it clearly states the fuel filter needs to be replaced every 40,000km. I live in Australia, and most people here are in the US - so maybe I have a different model of the Mazda? lol

I spoke to a dealer here in Australia and I was told the fuel filter was near the rear driver side wheel, under the car? I tried looking under the car and didnt' see anything but then maybe I had to remove a cover (which i didn't do).

Can someone once and for all tell me whether my fuel filter is inside the gas tank and does not need to be replaced, or is actually supposed to be regularly serviced? Thanks
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Old 07-20-2010, 12:31 AM   #2
echelon6
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Default Re: Fuel filter - how to replace?

Bump

Nobody knows whether Mazda 3's fuel filter can be serviced?
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Old 07-20-2010, 12:49 AM   #3
Oricle
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Default Re: Fuel filter - how to replace?

the NA market 3 does not use a replaceable fuel filter, the only filter that i know of is built into the fuel pump. in the manual (section 8-4 there is no reference to fuel filter replacement, just inspection of the lines). according to mazda "[we have] done long term tests and have determined that it is not necessary to replace the fuel filter(s) in the MAZDA3. Mazda does recommend that you follow the Scheduled Maintenance listed on page 8-4 of the Owner's Manual. Please refer to your Warranty Booklet for more information regarding your MAZDA3."
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Old 07-20-2010, 07:32 PM   #4
quikz
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Default Re: Fuel filter - how to replace?

In the US. The fuel filter is nothing but a 'sock' and is submerged in the fuel tank with the fuel pump. Needs no replacement. It's just a strainer net or like really rough pantyhose. Not that I would know anything bout 'pantyhose'.... :P

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Old 07-20-2010, 07:36 PM   #5
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Default Re: Fuel filter - how to replace?

What if the net somehow get filled up from long term used... lol
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Old 07-20-2010, 09:40 PM   #6
echelon6
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Default Re: Fuel filter - how to replace?

Ahhh ok maybe the Australian Mazda 3 has an inline filter then

Maybe Mazda's determined non-american petrol is dirtier
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Old 07-21-2010, 12:01 AM   #7
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Default Re: Fuel filter - how to replace?

I don't think anyone will have issues with that setup. Truth be told I had an 85 Nissan 200sx Turbo i bought used some years ago and it had 140,000 miles or so on it and still had the original fuel filter on it. I bought a new filter and put it on the car and there was no difference at all that I could tell. I decided I would open up the old fuel filter and it wasn't very dirty inside at all. So as much as people think fuel filters are so important I kinda felt it was a scam after my own experience.
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