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Home > Technical (L322) > P040D-00 (2F) EGR temperature sensor replacement

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shinchan

Member Since: 05 May 2015
Location: santiago de compostela
Posts: 109

Hi guys!
After DPF removed (cutting), cleaning (120€) and reinstalled with new gaskets and 60mm clamps I moved the car to specialist to clear DPF fault cuz Gap tool not allow this operation. During the road test restricted performance appear again, also P006A-00 in Gap tool.
It seems confirmed that the intake system has a leak, but where?
Decide to perform a new smoke test again but this time well done and my suspicions were confirmed, after a while smoke appear in the valve cover...the worst and expensive failure possible in this scenario!
Now I´m reading the manual where says discard all fuel tubes once removed...I´d like to know what do you think about this. Thanks again for your support.

SMOKE TEST VIDEO: https://youtube.com/shorts/9E7I_EugG58?feature=share

Click image to enlarge

Last edited by shinchan on 7th Sep 2023 7:44am. Edited 2 times in total

6th Sep 2023 7:41pm

shinchan

Member Since: 05 May 2015
Location: santiago de compostela
Posts: 109

Failure point between the plastic welding of ducts cover and valve cover.

6th Sep 2023 7:54pm

Mfcetin

Member Since: 26 Jun 2023
Location: Nuremberg
Posts: 25

2011 Range Rover Vogue SE TDV8 Alaska White

Baltic Blue wrote:
I have had the PO 40D fault permanently for at least 5 years, but I have never seen PO486 ?
Mike.

Do you have the yellow restricted performance warning?
I bought my RR 3 months ago and this p040d is permanently there and I started to get yellow restricted performance warning with no additional codes. I dont see much of a Performance reduction. When it happens I just keep driving, mostly coz Im on highway and have to 🙂.
It goes away on its own, without me clearing the codes.
Is it bad to drive while this yellow restricted performance warning is on?
I ordered the sensor and all tools to replace the sensor. The space on LHD rangie is even worse than UK cars, or maybe Im just to scared.

I will try with removing the cabin filter housing. 2011 Vogue SE 4.4 TDV8

17th Sep 2023 1:00pm

fmgl322

Member Since: 18 Apr 2022
Location: Koblenz
Posts: 50

Finally a LHD candidate! I need to do mine and reading all the posts of RHD changes it sounds relatively easy in comparison. On LHD cars there is even less room to get in there and wiggle that sensor out, or even get near the heat shield bolts etc. Has anyone done a LHD sensor change on here by themselves, and if so, how on earth did they get near it? -------------------------
2012 4.4 TDV8 Vogue
2001 Audi A2 1.4 16V
2019 Skoda Kodiaq (don't ask...)

20th Sep 2023 10:10am

Mfcetin

Member Since: 26 Jun 2023
Location: Nuremberg
Posts: 25

I bought the sensor and the special tool and planning to do it on my own soon.

jaguar3 has done it on a LHD 2011 Vogue SE 4.4 TDV8

20th Sep 2023 10:19am

jaguar3

Member Since: 25 Sep 2022
Location: Estonia
Posts: 193

2011 Range Rover Vogue SE 4.4 V8 Baltic Blue

I think its even easyer to replace it on LHD cars due there is no battery box on the way. Just remove airfilter box and you can start straight away with sensor/heatshield work.
I dont think there is any difference in clearence between engine and car body.

22nd Sep 2023 8:20am

Mfcetin

Member Since: 26 Jun 2023
Location: Nuremberg
Posts: 25

Today I tried to do this job on my LHD Range Rover. had to remove the plastic trim where battery would be if it was RHD car.

Click image to enlarge

I managed to undo one of the screws from the headshield and bent the heatshield to the side.

Cut the old sensor with a garden tool. It was the longest tool which I could reach the sensor with

I got kind of happy that it was going quite ok and quickly.

However, I could not manage to undo the old nut. I tried for a few hours being extra carefull not to strip the nut.

I gave up and draw to my local mechanic to ask for help. they agreed to help if I could wait untill next friday which I accepped hapilly.

Lets see how much they will charge me for this.

I think becasue I cut the sensor and unpluged it completely I started to get the restricted performance warning (yellow) and I saw that "water in fuel sensor" fault is back. Clearing this code also clears the rest. performance.
I recently changed the cable loom for the water sensor and since than my car has been RP free

I hope after finishing this EGR Temp job, RP will not come back again.
-- Update
After 230 Euros (40 Euros only for Clearing Codes

) now I am free of this fault. I am glad that the mechanic agreed to finish the job I started

I will keep an eye on fuel consumption and report if I notice any significant change.
I Am not sure if it is just placebo effect but I think my exhaust smells now better, if it makes sense

2011 Vogue SE 4.4 TDV8

13th Oct 2023 1:09pm

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