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PatGAPInnov
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Member Since: 19 Jan 2015
Location: Montreal
Posts: 45

Canada 
That did actually cross my mind as a possibility. I have added myself a note and if the opportunity arises, we shall investigate. http://www.gap-diagnostic.com/
Post #494241 19th Jan 2016 10:30pm
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miker



Member Since: 13 Sep 2015
Location: Surrey
Posts: 1758

United Kingdom 1999 Defender 110 Td5 CSW Rioja Red
It is certainly possible to do forced static regens on other vehicles. The engine modifies it's burn to increase EGT's to help it along. Although my dad did once manage to start a fire under a car whilst doing one!
Post #494242 19th Jan 2016 10:31pm
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PatGAPInnov
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Member Since: 19 Jan 2015
Location: Montreal
Posts: 45

Canada 
Quote:
Although my dad did once manage to start a fire under a car whilst doing one!


Which is probably why Land Rover removed it Laughing http://www.gap-diagnostic.com/
Post #494246 19th Jan 2016 10:37pm
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dantastic



Member Since: 04 May 2010
Location: London
Posts: 367

United Kingdom 
How quick does the DPF fill up if you are travelling slowly?

I am taking my 2.2 across the Pyrenees in May and we will be potting along pretty slowly most days. I'm reading this and I'm a bit afraid I might get stranded!
Post #494347 20th Jan 2016 10:22am
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Supacat



Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

United Kingdom 2013 Defender 110 Puma 2.2 XS DCPU Keswick Green
Active regeneration generally occurs every 250 miles (400 km) although this is dependant on how the vehicle is driven. For example, if the vehicle is driven at low loads in urban traffic regularly, active regeneration will occur more often. This is due to the rapid build-up of particulates in the DPF than if the vehicle is driven at high speeds when passive regeneration will have occurred.
Post #494363 20th Jan 2016 11:15am
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flydive



Member Since: 27 Aug 2015
Location: Lugano
Posts: 290

Switzerland 2015 Defender 90 Puma 2.2 Heritage Edition SW Grasmere Green
My experience, not with the 2.2 but with my RRS TDV8, but the reason why I'd like to see the option implemented.

1. Was on a week end in Piedmont's mountains with 2 Defenders, off-roading, driving slowly.
End morning of the second day I had the "DPF full" message.
Had to park my car and continue on someone else car to avoid going in protection.

We had a ~20 min drive on normal roads(around 60/80 Km/h) not enough to get the regen, but maybe a forced one might have worked.

Going home it took a long time on highway before the message cleared.

2. Driving on normal roads but at slow speed I had the "DPF full" message, was not far from a highway, so went for the usual "high" speed drive to clear the message.
Unfortunately it did not clear.
I had to go to the dealer to have them do the forced one(on the road). Luckily they did it for free, but would be better to have the option to do it myself, especially if it happens at the beginning of the week end(as it usually do, thanks Murphy Wink )
Post #494375 20th Jan 2016 11:57am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16809

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
In an emergency, could you disconnect the t-box ends of both propshafts and "drive" for the required perod at the required speed? As long as the vehicle thinks it is moving it should allow you to do this. Would this work?

I am so glad I have a 2.4 with no DPF!
Post #494380 20th Jan 2016 12:06pm
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Cupboard



Member Since: 21 Mar 2014
Location: Suffolk
Posts: 2971

United Kingdom 2011 Defender 110 Puma 2.4 HT Corris Grey
I guess that would depend on whether the speed requirements are a "do this because it will get everything hot enough" in which case no, or "do this and once you've clocked up enough miles you're OK", in which case yes.
You'll have to put a hydraulic pump on the transfer box and load it up Laughing
Post #494401 20th Jan 2016 1:02pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16809

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
I rather assume that the speed requirements are mainly a "do this to get enough gas flow through the exhaust to support combustion", in which case it might work.

if I was stuck in the bush with a blocked DPF I would certainly give it a try!
Post #494406 20th Jan 2016 1:10pm
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Supacat



Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

United Kingdom 2013 Defender 110 Puma 2.2 XS DCPU Keswick Green
flydive wrote:
I had to go to the dealer to have them do the forced one(on the road).


I don't see the point of going to the main dealer if all they do is what it says in the workshop manual:

"driving the vehicle until the engine is at its normal operating temperature and then driving for a further 20 minutes at speeds of not less than 30 mph (48 km/h)"

as that can be done by yourself for free! They must do something else as well?
Post #494408 20th Jan 2016 1:11pm
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flydive



Member Since: 27 Aug 2015
Location: Lugano
Posts: 290

Switzerland 2015 Defender 90 Puma 2.2 Heritage Edition SW Grasmere Green
Well, I followed that procedure few times and it always worked fine.

That particular time it did not work, did more than 20min, tried twice, then went to the dealer as I did not want the car to go in protection.

They plugged the pc into the OBDII plug, started the software beginning the process and went for a drive, cleared quite quickly.
Post #494432 20th Jan 2016 2:02pm
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flydive



Member Since: 27 Aug 2015
Location: Lugano
Posts: 290

Switzerland 2015 Defender 90 Puma 2.2 Heritage Edition SW Grasmere Green
Well, today it happened again, on my TDV8.

Got the message "DPF full", did the usual procedure but no success, drove more than 3 times the usual distance for the regeneration.

Weather conditions were maybe a factor.

Luckily I was able to borrow the dealer tool. Plugged in, started the "Dynamic Regeneration" and went for a drive, the message finally cleared.

We (or at least I) need this function in the IIDtool
Post #598624 2nd Feb 2017 4:55pm
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