Engine: D5: - Diesel Purged with Liqui Moly...

myfirstv70 · Nov 9th, 2020, 18:01

Yesterday I took SiRobb's advice and purged my D5 (E3) engine. It was pretty straight forward but getting the return pipe to part from the stainless steel line was a little fiddly but I temporarily pulled the metal pipes to the left which did help somewhat - this all makes sense if you watch the Youtube video. My engine was running pretty well but there had been a very slow deterioration ie it wouldn't pull 35mph in 5th like it used to and it smelt a bit diesely on start up. I am pleased to report that both issues are now rectified and the car feels smoother and torquier (Is that a real word?). I was very surprised just how slowly it was consuming the diesel purge...I would estimate it would probably take 1hr 15mins to consume only a litre! My purge did not get quite discoloured like SiRobb's but the pleated filter I used was rather discoloured so I suspect it may have been a finer filter than Si Robb's. I did see guys on Youtube not using a filter which, in my book, is lunacy. It's like washing your pants out in water and then brewing up with the water afterwards ie all the crap you have liberated is now going back into the injectors unless I am missing something....I have a suspicion that many a dirty injector has been changed out rather than trying a good cleaning. If anybody is interested I can list all the bits you need .....
HTH,
Nobby

ca2n · Mar 27th, 2021, 15:39

Do the hose clamps need replacing?

If so, with any particular type, if I may ask?

davebb · Mar 27th, 2021, 16:22

YES
Dave

myfirstv70 · Mar 27th, 2021, 18:27

The old ones got trashed in my case and I used, from memory, these:

https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1

HTH,
Nobby

Simmy · Mar 27th, 2021, 18:32

yes list the parts needed

myfirstv70 · Mar 27th, 2021, 21:27

https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1

https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1

https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1

https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1

And the clips already listed....
HTH,
Nobby

ca2n · Apr 5th, 2021, 18:59

Thought I'd ask before my patience runs out and I break something..

Any tips for removing the hoses from the pipes? Boy they're stuck on there!

myfirstv70 · Apr 5th, 2021, 20:57

As I recall there was quite a lot of 'stiction' between the pipes and the horizontal stainless tubes. I seem to think I use a set of pliers to gently rotate the rubber pipe up and down. Once you break the bond it's plain sailing thereafter.....
Good luck and remember to pull the fuel pump fuse!!!!! (Ask me how I know!?)

eternal optimist · Apr 5th, 2021, 21:47

I picked up the bits to do mine this weekend - didn’t get it done. Next Sunday possibly....

Millie20 · Apr 7th, 2021, 20:27

Quote:

Originally Posted by eternal optimist

I picked up the bits to do mine this weekend - didn’t get it done. Next Sunday possibly....

I have a long list of those "next Sunday possibly" jobs. In fact the list keeps getting longer.

Nov 9th, 2020, 18:01	#1
myfirstv70 Senior Member Last Online: Yesterday 17:32 Join Date: Dec 2008 Location: Lincoln	Diesel Purged with Liqui Moly... Yesterday I took SiRobb's advice and purged my D5 (E3) engine. It was pretty straight forward but getting the return pipe to part from the stainless steel line was a little fiddly but I temporarily pulled the metal pipes to the left which did help somewhat - this all makes sense if you watch the Youtube video. My engine was running pretty well but there had been a very slow deterioration ie it wouldn't pull 35mph in 5th like it used to and it smelt a bit diesely on start up. I am pleased to report that both issues are now rectified and the car feels smoother and torquier (Is that a real word?). I was very surprised just how slowly it was consuming the diesel purge...I would estimate it would probably take 1hr 15mins to consume only a litre! My purge did not get quite discoloured like SiRobb's but the pleated filter I used was rather discoloured so I suspect it may have been a finer filter than Si Robb's. I did see guys on Youtube not using a filter which, in my book, is lunacy. It's like washing your pants out in water and then brewing up with the water afterwards ie all the crap you have liberated is now going back into the injectors unless I am missing something....I have a suspicion that many a dirty injector has been changed out rather than trying a good cleaning. If anybody is interested I can list all the bits you need ..... HTH, Nobby

Mar 27th, 2021, 15:39	#2
ca2n Member Last Online: Apr 16th, 2024 10:47 Join Date: Dec 2018 Location: West Midlands	Do the hose clamps need replacing? If so, with any particular type, if I may ask? __________________ 2004 XC90 D5 SE Geartronic 195000 miles

Mar 27th, 2021, 18:27	#4
myfirstv70 Senior Member Last Online: Yesterday 17:32 Join Date: Dec 2008 Location: Lincoln	Yes.... The old ones got trashed in my case and I used, from memory, these: https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1 HTH, Nobby

Mar 27th, 2021, 21:27	#6
myfirstv70 Senior Member Last Online: Yesterday 17:32 Join Date: Dec 2008 Location: Lincoln	Parts list https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1 https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1 https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1 https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1 And the clips already listed.... HTH, Nobby

Apr 5th, 2021, 18:59	#7
ca2n Member Last Online: Apr 16th, 2024 10:47 Join Date: Dec 2018 Location: West Midlands	Thought I'd ask before my patience runs out and I break something.. Any tips for removing the hoses from the pipes? Boy they're stuck on there! __________________ 2004 XC90 D5 SE Geartronic 195000 miles

Mar 27th, 2021, 16:22	#3
davebb Premier Member Last Online: Apr 17th, 2024 19:02 Join Date: Aug 2013 Location: Emsworth,hants	YES Dave

Mar 27th, 2021, 18:32	#5
Simmy Premier Member Last Online: Yesterday 20:45 Join Date: Mar 2017 Location: Manchester	yes list the parts needed

Apr 5th, 2021, 20:57	#8
myfirstv70 Senior Member Last Online: Yesterday 17:32 Join Date: Dec 2008 Location: Lincoln	Pipe removal.... As I recall there was quite a lot of 'stiction' between the pipes and the horizontal stainless tubes. I seem to think I use a set of pliers to gently rotate the rubber pipe up and down. Once you break the bond it's plain sailing thereafter..... Good luck and remember to pull the fuel pump fuse!!!!! (Ask me how I know!?)

Apr 5th, 2021, 21:47	#9
eternal optimist Master Member Last Online: Apr 17th, 2024 13:55 Join Date: Nov 2006 Location: Reading	I picked up the bits to do mine this weekend - didn’t get it done. Next Sunday possibly....

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