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deepseapilot Profile
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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
9/Sep/2013, 9:23 pm Link to this post Send Email PM   Send Private Message Blog
 
Exywarrior Profile
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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


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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
11/Sep/2013, 4:22 pm Link to this post Send Email PM   Send Private Message Blog
 
deepseapilot Profile
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Date Registered: 08-2013
TOTAL POSTS: 19
Reply | QUOTE
Re: DPFs


Thank you Mark,

What I've done yesterday was a useless call to local Nissan center. Young and extremely polite man quickly and definitely answered to my question regarding that DPF button:
" that's for forcible regen". My next question was "are you sure?" with affirmative reply "yes". Then I asked him what is the source. We've got lots of manuals here he said, and added if I can call back in 10 mins he'll consult the book again and read reference for me. Last thing I remember when I called him back was "sorry the cars we sell here do not have that button at all and I do not actually know what is this button for"!!!. My blood pressure and puls doubled at least and I wished the guy good luck and hang up. Amazing!!!
So, still awaiting for reply from friend in Japan. Will post results.

Cheers - Nick

X-3286

DNT-31 2010 X-Trail, M9R, manual, dark grey.
11/Sep/2013, 5:28 pm Link to this post Send Email PM   Send Private Message Blog
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29094
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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 emoticon

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 Link to this post Send Private Message MSN Blog
 
deepseapilot Profile
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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
11/Sep/2013, 6:12 pm Link to this post Send Email PM   Send Private Message Blog
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29094
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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 Link to this post Send Private Message MSN Blog
 
deepseapilot Profile
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Date Registered: 08-2013
TOTAL POSTS: 19
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Re: secret button


Hi Jalal,

The guy from Tokyo responded a minute ago. He says he could not get an exact answer and may be the knob is to engage regen but he's unsure. So, maybe we can try forum members from Japan as you suggest to stop my curiosity.

Best regards - Nick

X-3286

DNT-31 2010 X-Trail, M9R, manual, dark grey.

11/Sep/2013, 8:28 pm Link to this post Send Email PM   Send Private Message Blog
 
Brotherontherun Profile
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X-TRAIL NEWBIE
 


Date Registered: 07-2013
TOTAL POSTS: 34
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Re:


Hey

This is could be a really silly question but does DPF regen cycles change with weather patterns??? i.e less dpf regen with rain / cold and more dpf regen with hot weather???

Keen to hear everyone's experiences with this?

 

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Brotherontherun (X-3226)

2013 TL Snowstorm White, Auto
Now with 6.5 inch splits, 6.5 Co-axils, Amp & 10 Inch Sub
18/Sep/2013, 9:24 pm Link to this post Send Email PM   Send Private Message Blog
 
cooch t31 Profile
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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.

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Tony X-891c

HERE is my D22 Navara
HERE is my old 2008 T31, ST Series1

19/Sep/2013, 5:43 am Link to this post Send Private Message
 
Exywarrior Profile
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X-TRAIL FANATIC
 


Date Registered: 10-2011
Location: Darwin, NT
TOTAL POSTS: 325
Reply | QUOTE
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


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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
21/Sep/2013, 11:07 am Link to this post Send Email PM   Send Private Message Blog
 


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