DPF- Diesel Particular filter -yes/no?

[pushrod]

Do we in Australia get our Puma Defenders ( 2011 ) with or without a DPF ? it seems to vary from country to country depending on emission laws?

[langy]

I was bored, so I looked it up - Euro 5 diesel MC class (under 3.5ton 4wd etc) partially starts in Australia ( ADR 79 ?) in 2013, with full version by 2016. Whether or not new Puma's come with a DPF is a toss up - you know what LR are like.

http://www.dieselnet.com/standards/au/

[Bundalene]

I was always under the impression that Petrol vehicles had catalytic converters whilst diesels had particulate filters. A bit of research has shown this is not necessarily the case.

The pic below is of the item immediately after the turbo on our 2010 Puma


http://img3.imageshack.us/img3/2203/dscn0203u.jpg (http://imageshack.us/photo/my-images/3/dscn0203u.jpg/)



http://img855.imageshack.us/img855/9729/dscn0204v.jpg (http://imageshack.us/photo/my-images/855/dscn0204v.jpg/)



Here is a bit of interesting reading, most of which apply to stationary engines.

Diesel Oxidation Catalyst (http://www.dcl-inc.com/dieseloxidationcatalyst)


At the end of the day, I an still unsure of what the device actually is and how it works - the fact that it has KAT on it ???



Erich

[rick130]

Erich, from a quick google it looks like a cat.

Katalysator für Land Rover Defender TD4 90/110/130er | eBay (http://www.ebay.at/itm/Katalysator-Land-Rover-Defender-TD4-90-110-130er-/260823011489)

About us | Diesel performance tuning and economy remap chip tuning for Landrover Defender Discovery TD5 Puma TDV6 TDV8 (http://bellautoservices.co.uk/about-us/)
The development of this consisted in using two cars, one of which was the well known Allisport Land Rover Defender Puma, to commence the long and ongoing mapping process and saw us develop an exhaust downpipe as a replacement for the Catalytic converter

[Loubrey]

Pushrod,

It looks like no one will know untill someone actually has a look on one of the new ones...

Land Rover Defender for 2012 - Next Car Pty Ltd - 15th August, 2011 (http://www.nextcar.com.au/n.landrover.defender.110815.2012.html)

[pushrod]

i was more interested if my current 2.4 Puma MY2011 has one ..?
it seems to make a difference in what engine oils are suitable ..

[gitney]

Pushrod,
Yours doesn't have one. You've got a CATalytic converter but no diesel particulate filter.

[cal415]

anything built from sept 2011 onwards will have the DPF apparently, along with the smaller 2.2L, all 2.4s have a cat as pictured by bundalene, apparently removing these see's some good performance gains. I cant imagine having a super hot cat sitting right next to the turbo would do much to help heat soak.

[pushrod]

thanks for clarifying this boys...

[Iain_B]

Does anyone have any before and after dyno figures to verify performance gains on removing the Cat or the centre muffler. Old school free flow exhausts just don't work with modern EFI systems without modifying the fuel map a well. When I modify my cars I also like to know that what has been done is actually increasing performance, rather than just making more noise. Too often claims of performance increases are just not backed up with real world numbers.

On my Puma, I'm not sure what sensors are where, how the computer settings /fuelling are set and whether removing the cat will affect some readings on a sensor somewhere that would change how the EGR valve works, the result being no performance increase at all, or even worse, poorer performance.



anything built from sept 2011 onwards will have the DPF apparently, along with the smaller 2.2L, all 2.4s have a cat as pictured by bundalene, apparently removing these see's some good performance gains. I cant imagine having a super hot cat sitting right next to the turbo would do much to help heat soak.

[lackuwaxa]

Sorry to bring up an old thread, but does anyone know if the DPF in the my12 is self cleaning or disposable?

If self cleaning what speed does it kick in, how often does it kick in and how much power does it rob from the engine?

Thanks guys for the info

Wade

[Blknight.aus]

2.4l pumas shouldnt have the DPF but will have the CAT

2.2L pumas should have both the Cat and the DPF in EURO spec as of about EOFY 2010/2011

AFAIK its not mandated in Aus spec or NAS spec yet (but cant be far off) so if you get one or not will probably depend on where your landy was manufactured.


I dont know of a DPF that doesnt have a self regeneration capability. It might be user activated by a certain driving technique or direct user control most are initiated by the computer automatically as required or when driving conditions permit. All DPF's can be dealer cleaned.

Guessing.

The Puma DPF probably follows the ford or Rangies cleaning process of waiting until you are using a driving technique that is favorable for burn off and not using full engine power so you wont notice the cleaning process.

[danske]

i was more interested if my current 2.4 Puma MY2011 has one ..?
it seems to make a difference in what engine oils are suitable ..

Good point , I thought my 08 had one so have recently used Nulon oil for engines with DPF , about the same time I notice my engine getting a considerably louder diesel sound and blowing white smoke when pushed hard in the bush! Could this be the issue ? If it does not have a dpf then I have used the wrong oil. The sound is not right - louder when accelerating from 1500 to 2000 revs then I don't really notice it. Guess its due for a visit to the service dept for some correct spec oil and hopefully this with some tuning can sort out the sound. Still drives well though !

[ezyrama]

My 2012 Defender has a DPF, the book says it is self cleaning and will illuminate the light on the dash when it needs to clean itself at a regular interval for a period of about 300km (i think). So far with nearly 10000km on the clock with a lot of highway mileage I havent seem it illuminate at all yet. When I get home on Monday, I'll re-read the book.

Only read the destruction manual as a last resort(and before SWMBO suggests it)

[Blknight.aus]

the DPF light (if it follows most of the other common DPF clean setups) only comes on if the DPF is approaching capacity and hasnt had a chance to do an incremental burn during normal driving operations.