Thanks for replies. I have a few round rubber o-ring seals and I will try to fit it on the EGR inlet to seal it. Let's see if that helps...
Just one more thing, I took car for a Christmas tree shopping yesterday and I have noticed that after driving calmly for 40-50min in town traffic soot level didn't go up, actually it went from 16.3 down to 16.2 so I decided to go on motorway. After steady 5min drive at 65mph soot level vent to 17 and I decided to go back home. Weird. It shouldn't be other way round?

I have experienced similar issues to you (see this thread https://www.fullfatrr.com/forum/topic54864.html)where my soot level would rise whilst on the motorway but would then drop when on A roads going slower and in stop/start traffic situations. After some great expense I may finally have resolved the issue but I am still testing so my original thread won't get updated until I am sure. Don't threat too much on the soot level for now, instead get the high pressure smoke test carried out otherwise you will be chasing your tail forever. Once you have the results from the test you'll have some idea what direction to go in. The DPF issue you describe is almost certainly induction leak related, especially as you have managed to complete a regen and got down to very low figures. 2011 TDV8 Vogue SE

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Quote:

Christmas tree shopping yesterday and I have noticed that after driving calmly for 40-50min in town traffic soot level didn't go up, actually it went from 16.3 down to 16.2 so I decided to go on motorway. After steady 5min drive at 65mph soot level vent to 17 and I decided to go back home. Weird. It shouldn't be other way round?

AdamCzix wrote:

Thanks for replies. I have a few round rubber o-ring seals and I will try to fit it on the EGR inlet to seal it. Let's see if that helps...
Just one more thing, I took car for a Christmas tree shopping yesterday and I have noticed that after driving calmly for 40-50min in town traffic soot level didn't go up, actually it went from 16.3 down to 16.2 so I decided to go on motorway. After steady 5min drive at 65mph soot level vent to 17 and I decided to go back home. Weird. It shouldn't be other way round?

Hi, I am currently waiting for smoking machine. Bought one online as might have another use for it. My regen happens automatically but way too often. I have done 150miles trip last week and DPF regen happened 5 times. From approx. 19g back to 2. At some point when driving more aggressively clogging up process was faster than regeneration process. I will post more info when I get my pressure smoke leak detector. At this moment I am trying to calmly drive in town and do one regen trip regulary on M1 to keep car going. The temperature sensor won't change anything, do not bother as its is a pain to change it due to limited access.

@adam

Firstly it will need to be a HIGH pressure smoke testing machine otherwise it won’t show any small cracks.
Secondly it doesn’t sound like you have a problem : a reduction of 19 to 2 is normal working. The dpf is designed to fill at a rate of 1g every 8-10 miles.
Do you have any fault codes or yellow/red dpf lights? It sounds as if yours is working normally.

Quote:

I have the same recurrent fault you get (faultcode 40) and when I change the temperature sensor on the exhaust monifold the fault disappears. The only problem is I can't reach the sensor as there's no place there. So I wanne be 100% sure this sensor is the problem before I start.

Just one fault code - temp sensor which supposed to not affect anything. My filling rate is more like 1g per 2-3miles on motorway. If fils really fast from 2-10g lets say, and bit slower from 10-19g. Full regen every 30miles on motorway. City driving is different, when car is cold and with steady driving soot level is bearly moving.

Dolphinboy wrote:

@adam

Firstly it will need to be a HIGH pressure smoke testing machine otherwise it won’t show any small cracks....

Adam how about another way of looking at it:

what's your 0 or near 0grams to 20 grams mile range?

Mines about 200-250 give or take (city driving)

. Cheers, Greg
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2011 Vogue SE 4.4 with lots of toys in Stornaway

wait you're saying 30 miles between regens?

you've most likely got a leak

. Cheers, Greg
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2011 Vogue SE 4.4 with lots of toys in Stornaway

Yes, it is about 30 miles. It fills really quick. The pressure smoke tester I am getting goes up to 13psi. You think that is not enough?

Adam I checked the one I bought which was not enough pressure and is says 10-13 psi.

So that's not enough.

Research the system boost pressure to get an idea (post here too pls)
Look in the workshop manual which I believe is in the Wiki

. Cheers, Greg
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2011 Vogue SE 4.4 with lots of toys in Stornaway

As a rough guide, I recon 1 regen per tank full to 3/4 full of mixed driving , or approx 300 miles.
Mike. G reg 2.5VM Vogue Portofino red 1991- 1999
V reg 2.5td P38 Rioja red 1999- 2006
53 reg td6 Vogue Oslo blue 2006- 2015
11 reg 4.4 TdV8 Vogue SE. Baltic blue 2015- date.
https://www.fullfatrr.com/forum/topic56162...tty+affair

Dolphinboy wrote:

@adam

Firstly it will need to be a HIGH pressure smoke testing machine otherwise it won’t show any small cracks.
Secondly it doesn’t sound like you have a problem : a reduction of 19 to 2 is normal working. The dpf is designed to fill at a rate of 1g every 8-10 miles.
Do you have any fault codes or yellow/red dpf lights? It sounds as if yours is working normally.