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PaulieT31TDi
X-TRAIL NEWBIE
Date Registered: 08-2008
Location: Brisbane
TOTAL POSTS: 54
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Re: Particulate filter error resulting in MIL light
Peugeot actually use an accelerant for the DPF burnoff. It is topped up every 80,000km service I believe. Would mean that even if fuel quality was a little low the accelerant would result in high enough temps to burn off the soot.
I do some highway driving every week, I mentioned to the techs that I had not seen the DPF regen light since the car was near new, he said that was good, as it meant that it was able to do its job in normal operation without having to tell me to drive faster.
--- 2008 TL 6 Speed Manual, Precision Grey. Tint, Rubber Mats, Towbar, Roofracks, 2 x Thule Bike Carriers
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5/Feb/2009, 2:07 pm
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hermit53
Date Registered: 02-2009
Location: Varese, Italy
TOTAL POSTS: 10
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Re: Particulate filter error resulting in MIL light
Hi all,
My 5+ AUD worth of experience with the DPF contraption....
My DPF system went belly up due to quite a different cause; a non-standard air filter! According to Nissan, not enough air flow caused the sensor to go haywire, which resulted in no regen for ages. In the end it all blew up in my face and 4 forced regens and AUD 2,500 worth of new parts later it was fixed
No way Nissan covers it under warranty!!!! I am now trying to get a certificate of the filter supplier FRAM that their supply complies with the Nissan standards, so I can at least get part of my money back! Mind you, it's a long story as to why, but obviously any car manufacturer will use any excuse to get out off their warranty obligations.
So apart from diesel fuel quality, the timely service of the air filter is very important to keep the DPF working as advertised. If you want to use non-factory air filters or systems, you better make sure there is a certifcate of compliance to go with it!! By the way, weird that on the T31 they talk about a minimum speed of 65km/h to get a regen, on the T30 it's 80 km/h for at least 20 minutes. Hey, maybe there's a argument to entice the local governments to increase speed limits in order to help the environment!!!
As to the diesel quality, do not believe it is that much better in Europe! There are many additives on the market to improve the fuel quality and bring it up to spec for common rail systems and DPF. A tip from experienced insiders (like technician working on Ci engines all the time, remember 43% of the cars in Europe are diesel powered), mix 1 to 1.5 liter of petrol with a full tank of diesel! Works a treat and keeps you out off trouble. I do it all the time, not only in winter. A hell of a lot cheaper than the additives as well
Happy regenerating to you all
--- Hermit53
2007 T30 2.2 DCi Columbia Sport (original sunroof and roof railing with integrated drive lights), with Maxe half nudge and side-bars. More add-ons soon...
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20/Feb/2009, 6:46 pm
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jalalski
Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re: Particulate filter error resulting in MIL light
quote: hermit53 wrote:
My DPF system went belly up due to quite a different cause; a non-standard air filter! According to Nissan, not enough air flow caused the sensor to go haywire, which resulted in no regen for ages.
I have never heard of something more silly than this to be honest. It's like saying that swapping an air filter of a petrol version xtrail will have a chance to have the catalytic converter blown, which is impossible and I would have challenged Nissan to prove it in your case.
Nissan diesel are not the only cars which run with different types of air filters than OEM and it should no relation at all to the DPF or the sensors.
K&N diesel filters for example clearly show compatibility with the T31 and T30 diesel engines and it's back by a life-time warranty.
The T30 diesel had more problems than any other Nissan model, so the last thing Nissan should do is blame a simple air filter swap for a dead sensor. They have been forking out millions on dead turbo replacements for the T30, so I reckon they're trying to recover some of their losses by blaming other components.
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20/Feb/2009, 9:12 pm
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fangios
X-TRAIL ENTHUSIAST
Date Registered: 08-2008
Location: Mornington Peninsula,Victoria
TOTAL POSTS: 104
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Re: Particulate filter error resulting in MIL light
Likewise, I have not seen my light come on in 25,000km. But I have fed it a mix of fuels, whatever happens to be convienient. Mostly Safeway (caltex), but various other service stations and no sign of trouble at all.
--- X-Trail TS DC-i 6 speed manual
Electric Blue, cargo barrier, tow bar, reverse sensors, Rhino heavy duty aero roof bars and baby seat!
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7/Apr/2009, 11:03 pm
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