DEFENDER2.NET - View topic - Diesel Particulate Filters

↓ Advertise on Defender2 ↓

Home · FAQ · New Posts · My Posts · PMs · Search · Members · Map · Calendar · Profile · Donate · Register · Log In

Home > Technical > Diesel Particulate Filters

Page 2 of 2

Print this entire topic ·

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7687

2011 Defender 110 Puma 2.4 USW Stornoway Grey

if i had a DPF i would be staying out of water crossings that i do know. that aside if the vehicle is getting upto temp on a run it will prob be ok. Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop

13th Dec 2011 9:38pm

Naks

Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2591

2010 Defender 90 Puma 2.4 SW Alpine White

Waldo wrote:
I agree with Dave, 2.2 Defender definitely does have the DPF.

SA-spec 2.2 Pumas do not have a DPF due to the poor diesel we have here and in surrounding countries. --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged

Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

3rd Jan 2012 11:53am

T1G UP

Member Since: 08 Dec 2009
Location: Bath
Posts: 3101

2011 Defender 110 Puma 2.4 XS CSW Orkney Grey

Ed2 wrote:

Wow! if I'd known about that it would have stopped me buying one, my 2.4 was only bought because the dealer was keen to get rid

NO DPF on 2.4.

For me it's a step to far on a defender, hence buying the last of the 2.4s

3rd Jan 2012 11:58am

T1G UP

Member Since: 08 Dec 2009
Location: Bath
Posts: 3101

READ ALL ABOUT IT!

http://www.ford.co.uk/Commercialvehicles/Transit/Top-Features

3rd Jan 2012 12:02pm

Happyoldgit

Member Since: 14 Sep 2007
Location: Norfolk
Posts: 3471

2015 Defender 110 Puma 2.2 USW Corris Grey

T1G UP wrote:
Ed2 wrote:

Wow! if I'd known about that it would have stopped me buying one, my 2.4 was only bought because the dealer was keen to get rid

NO DPF on 2.4.

For me it's a step to far on a defender, hence buying the last of the 2.4s

I feel the same. As I do quite a bit of short journey work I may just hang onto my current 2.4 Puma. Steve.
Owned numerous Land Rover vehicles of all shapes and sizes over the decades.
Current Defender: A non tarts hand-bagged Puma 110 XS USW.

[Insert something impressive here such as extensive list of previous Land Rovers or examples of your prestigeous and expensive items, trinkets, houses, bikes, vehicles etc]

http://forums.lr4x4.com

I used to be Miserable ...but now I'm ecstatic.

3rd Jan 2012 1:24pm

Zagato
Site Supporter

Member Since: 08 Jan 2011
Location: Billingshurst West Sussex
Posts: 4990

This quoted from LRO magazine.

Many current particulate filters need you to drive 10-30 minutes at 2500 plus RPM to regenerate the filter and this has caused problems for some such as couriers with their stop start driving.

'Getting this right was one of the trickiest parts of fitting the engine' explains Gary Taylor, Chief Programme Engineer on the Defender. We spent a week with energy provider EON staff and designed a re-gen cycle that would work for them. Analysing the data we realised we couldn't just shove the DPF under the vehicle, not only would it be in harms way but it wouldn't get hot enough to regenerate itself. They moved the DPF on to the down pipe - as close to the engine as they could get it.

'The result is that the DPF can be regenerated in about 10 minutes driving at just 20 mph, something that most users can attain. We've had two Defenders out with farmers for eight months and they haven't had problems', says Taylor.

Doesn't sound to be a very thorough test to me

I wonder if the farmers were working in minus temperatures

3rd Jan 2012 6:00pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7687

two!!! wow they have pushed the boat you.

What they mean is they have learnt from the RRV that it needs to be closer to the engine! Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop

3rd Jan 2012 6:10pm

Ed2

Member Since: 11 Oct 2010
Location: North Essex
Posts: 79

This filter looks to me like an unnecessary extra that nobody wants (except the EU of course), something thats absolutly asking to go wrong and most likely just after its out of guarantee.

I can just imagine the scene when you go in for an MOT and it passes,

except for the filter, so that £1400 please.

4th Jan 2012 8:03pm

Zagato
Site Supporter

Member Since: 08 Jan 2011
Location: Billingshurst West Sussex
Posts: 4990

Thought I read somewhere that vehicles with DPF actually use a little more fuel as the engine is being choked further

4th Jan 2012 8:14pm

Ed2

Member Since: 11 Oct 2010
Location: North Essex
Posts: 79

How does a DPF acually work? Does anyone know?

Being called a filter it would suggest it captures the soot, but what happens when that builds up? Is this what regeneration is? Does that involve a separate burning off automatically?

Dunno, sounds like a lot to go wrong to me..

4th Jan 2012 8:27pm

BigMike

Member Since: 13 Jul 2010
Location: Lancashire
Posts: 2253

Ed2 wrote:
How does a DPF acually work? Does anyone know? Being called a filter it would suggest it captures the soot, but what happens when that builds up? Is this what regeneration is? Does that involve a separate burning off automatically?

Dunno, sounds like a lot to go wrong to me..

Thats pretty much it. Great eh? Holds soot back, then you have to hold it at speed to burn it all off. Utterly utterly ridiculous.

4th Jan 2012 8:40pm

Page 2 of 2

All times are GMT + 1 Hour

Jump to

< Previous Topic | Next Topic >

Posting Rules

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum