Thanks Kev, agree  Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
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Rob just catching up here... that throttle body pipe does look very oily - on the outside. Leaking?

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

Could have been. Cleaned up and they might use some PTFE. It's going to a local mechanic tomorrow....we've got so far and I'm advising remotely!
Will keep posting Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

Any report back from the local mechanic after they had taken a look? 2011 TDV8 Vogue SE

Time for an update from me.
I've finally got around to getting the DPF cleaned and whilst off I also removed and checked all the sensor flexible pipes for splits/cracks or blockages, which I'm pleased to say all passed. Now all I need is a combination of time off work mixed with good weather so that I can refit and then set the pressure sensor up as per the instructions in the WM. I tested the voltage readings prior to the DPF being removed (or flagging an Amber or Red warning) and they were all reading within tolerance. I will of course retest once the sensor has been reset just to check that they still remain OK.

Pictures of the DPF before and after

Before :

Did you do a pressure test on that before removing it like Steve Norman ďid for James?
Fingers crossed
Update soon from our escapades Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

I haven’t had a pressure test on the cooling side if that’s what you mean. I have taken a note of the work James had carried out which caused me to monitor the coolant temperature with the IID which was reporting as correct, however, I still haven’t discounted that this may be an issue and is included in my ever growing list of testing to be carried out once the car is back together. Hopefully your friends vehicle will be a much simpler fix and if it points to the thermostat housing then I may as well change that too  2011 TDV8 Vogue SE

We will report back soon....we wait until we have the full story to avoid lots of posts... Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

Changed 4 doughnut rubbers (old ones were fine) as good practice
Cleaned MAP in doughnut (very scuzzy)
Cleaned intercooler top hose to throttle body and the Boost Temperature sensor inside. Cleaned up green lip seal.
Engine coolant - coming up to temperature OK. No thermostat issues
Tested back pressure on DPF with a manual pressure gauge on front sensor. Pressure was 2psi
Changed oil due to high dilution figure and reset service interval using IID
Reset all parameters with mechanic's professional kit (don't ask me the name)
No forced regen carried out due to low back pressure
Told car is has a new DPF fitted
Light extinguished

Not out of the woods yet so currently monitoring usual stuff via IID over next few days.
Plan to get a high pressure test done (not easy to find a place that does)

 Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
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Last edited by DrRob on 31st Mar 2021 7:20pm. Edited 1 time in total

Good update Rob, lots of familiarity in there for me. I've had to tell the car it's had a new DPF on 2 occasions now due a red light, it's not ideal but at least it gives you a chance. I guess the best thing to do now is run it around and watch how quickly the soot level rises and if a regen gets requested and more importantly, completed. 2011 TDV8 Vogue SE

Yes. My understanding is roughly 1g per 10miles.... Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

Rob, just spoken to Steve Norman. He uses a normal (standard pressure gauge) to do a DPF pressure test using the front sensor tube. if it is 2PSI then it is fine. It will normally regen at around 29PSI/2 BAR, but in reality it will do one at 15 psi.

Hope that helps.

That’s exactly how it was tested with a Sealey pressure gauge on front sensor pipe via a temporary T piece
Thanks James
All good info coming in  Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
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So far, the work carried out above has cured the amber issue. Ongoing monitoring with IID.
Ona separate thread I’ve reported that Durham Remaps can remove EGR and DPF functionality for £595... Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

dennij - any updates your end? Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
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