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deepseapilot
Date Registered: 08-2013
TOTAL POSTS: 19
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Re: DPFs
Tony and Jalal,
Thanks a lot for practical advices, will follow both.
Although calling service center seems as slim chance measure, I'll try them this week and will revert.
Jalal, contacting friends in Japan is brilliant idea, thank you.
Will post outcome.
Best regards - Nick
X-3286
DNT-31 2010 X-Trail, M9R, manual, dark grey, 43k
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9/Sep/2013, 9:23 pm
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Exywarrior
X-TRAIL FANATIC
Date Registered: 10-2011
Location: Darwin, NT
TOTAL POSTS: 325
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Re:
DPF Button sounds interesting, although I suspect the reason Australian TS/TL cars are not fitted with it is because such a button might not comply with Australian anti-pollution laws?
I know of no other diesel powered Euro IV/Euro V car with a forced regen button so this is new to me. Perhaps it simply resets the warning light sub-routine in the ECU software and saves a trip to the dealer to have it reset?
Either way, no use fitting it to an Aussie car within a warranty period because such a modification would instantly void the warranty (if you care about the warranty, that is).
I'm sure the button is not fitted in the Australian versions for a good reason. I might look up some of the Australian vehicle standards and see what I can dig up.
In the meantime, if you are interested in seeing a flash video of how a DPF actually works, go to THIS LINK and you'll find a good little video there that nicely explains it.
Last edited by Exywarrior, 11/Sep/2013, 4:40 pm
--- Mark T
2011 Series 4 T31 TL Auto - Twilight, factory towbar, factory mats, tinting, Cooper CS5s, cathodic protection, paint protection, yada yada...and no Provent
X-2099
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11/Sep/2013, 4:22 pm
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jalalski
Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re: DPFs
quote: deepseapilot wrote:
"sorry the cars we sell here do not have that button at all and I do not actually know what is this button for"!!!. .
That's what I told you their answer would be, but he got a bit "creative" at the start
The secret can only be resolved by Japan. We do have Japanese x-trail owners with us on the forum, so I will see if I can track one of them down for help with this.
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11/Sep/2013, 5:32 pm
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deepseapilot
Date Registered: 08-2013
TOTAL POSTS: 19
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Re: DPFs
Thanks Jalal, sounds great.
One thing which makes my worry is to bother others with that annoying button for a long time considering your cars are not fitted with it...sorry chaps.
As for video, Mark, it just confirmed my previous understanding of DPF, thank you.
Cheers - Nick
X-3286
DNT-31 2010 X-Trail, M9R, manual, dark grey.
Last edited by deepseapilot, 11/Sep/2013, 6:13 pm
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11/Sep/2013, 6:12 pm
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jalalski
Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re:
Nick you're not bothering us at all and were always interested in exploring new options and features if the ecu as it gives all of us a chance to understand the differences between one country and another.
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11/Sep/2013, 6:28 pm
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cooch t31
X-TRAIL HOLIC
Date Registered: 06-2008
Location: Blue Mountains, NSW
TOTAL POSTS: 5966
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Re:
I doubt it as the engine will still run at a constant temperature whether it rains or is hot outside.
--- Tony X-891c
HERE is my D22 Navara
HERE is my old 2008 T31, ST Series1
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19/Sep/2013, 5:43 am
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Exywarrior
X-TRAIL FANATIC
Date Registered: 10-2011
Location: Darwin, NT
TOTAL POSTS: 325
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Re:
DPF Regens do not vary dependent on the weather at all. The regens are triggered by sensors in the entry and exit points of the DPF that measure differences in pressure. A build up of back pressure triggers the DPF regen process.
This is why if you shut down the car before a regen is complete it is no big deal as the sensors will trigger another regen next time you start the car.
Just remember for the regen process to be effective requires the EGT to be high enough. In automatic cars that's easy because the auto keeps the revs generally to the optimum. But in a manual Exy if you tend to drive too much in 6th gear at low speeds, you will risk compromising the regen process. Good rule of thumb is to keep the revs at 2000 or above during cruise. Some think that doing this will have an adverse effect on your fuel economy but frankly I've not seen it - I still get exactly the Nissan specified fuel economy.
The DPF is not a monster - as long as you use the correct grade of oil and are aware of the need to let the car do a regen regularly, you'll never see a DPF light. I haven't seen a DPF light in nearly 40,000km; although I'll admit that I've had the DPF replaced once at 28,000km through a completely non-related defect that was the result of incorrectly conducted maintenance by the dealer. It was all done under warranty.
Hope this all helps.
Last edited by Exywarrior, 21/Sep/2013, 11:13 am
--- Mark T
2011 Series 4 T31 TL Auto - Twilight, factory towbar, factory mats, tinting, Cooper CS5s, cathodic protection, paint protection, yada yada...and no Provent
X-2099
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21/Sep/2013, 11:07 am
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