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DPF - the root of turbo failure ?
#1
This guy seems to think so 

https://www.youtube.com/watch?v=Mnr_mDbz3kg
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#2
The root of turbo failure is contamination of the oil.

The DPF and EGR valve contribute to this, but just as long as the oil is change before the oil gets too contaminated there shouldn't be an issue.

I change mine every 6000 miles and my turbo is now on 90000 miles and still going strong

The Citroen recommended interval is 12500 miles, but they offer an interim service at 6000 miles.
[-] The following 1 user says Thank You to ntm1275 for this post:
  • michaelg
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#3
Dont read too much into the very very limited turbo failures on 1.6hdi engines - change your oil change your oil change your oil - end of.
[-] The following 1 user says Thank You to polar for this post:
  • michaelg
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#4
I've commented on his page  Tongue
2015 1.6 L1850 90ps In Artic Steel inc Look Pack and Lighting Pack.
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  • michaelg
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#5
Nice one Smile

Do you happen to know roughly when they started to use the revised injector bolts ?

And did they also revise the Banjo bolt at some point ?
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#6
Injector bolts i think are about 2011 same as with the banjo oil strainers.
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  • michaelg
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#7
(17-05-2017, 06:21 PM)doofer Wrote:  What absolute garbage advice given in that video.  Does he think the soot crawls back up the exhaust pipe while the engine's asleep?  If so then does it then somehow teleport past the oil seals?

Well done with the proper advice, if Tree is Lee.

It seems that these back yard experts think removing the DPF cures all ills, like it's some kind of ghost that needs exorcising.

Angel Big Grin
2015 1.6 L1850 90ps In Artic Steel inc Look Pack and Lighting Pack.
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#8
(17-05-2017, 06:21 PM)doofer Wrote:  What absolute garbage advice given in that video.  Does he think the soot crawls back up the exhaust pipe while the engine's asleep?  If so then does it then somehow teleport past the oil seals?

Well done with the proper advice, if Tree is Lee.

It seems that these back yard experts think removing the DPF cures all ills, like it's some kind of ghost that needs exorcising.

You're barking up the right tree with the soot crawling back up the exhaust pipe!

Before dismissing and labelling the advice in the video as "Garbage", I think you would benefit from reading up on DPF's and turbo failures.

It's very foolish to dismiss something as rubbish just because you don't understand it, and in my opinion, judging from your comments above, you clearly don't.


.
My vehicle .... 2006 (m59) Berlingo Multispace Desire - 1.6 HDI 92 
[-] The following 1 user says Thank You to jj9 for this post:
  • doofer
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#9
A DPF is restrictive and so causes back pressure in the exhaust system, as the DPF becomes more & more blocked leading up to it regenerating the back pressure increases.
This back pressure means the exhaust gasses aren't sent freely down the exhaust so there is more of them in the combustion process, which leads to a dirty burn (due to lack of oxygen in the combustion process)  so more soot is produced, more soot is therefore contained in the piston blow by gasses so the oil quickly becomes saturated so it can't do it's job.

Now that may sound a bit far fetched, but why do you think diesel oil is always black (not just on the 1.6 hdi) it's black because of the soot from the piston blow by.

If you research the subject you will find that vehicles with a DPF fitted (not just Citroen / Peugeot) tend to suffer far greater from turbo failures than them that don't have one fitted, of course you will always have the odd exception. 

I'm not condoning removal of the DPF, but just because the guy in the video is removing his doesn't make the information in the video rubbish (the British word for garbage)  
The advice is sound, he explains that after replacing the Turbo the sump should be removed and cleaned out, the oil pick up should be replaced along with the oil feed pipe to the turbo, and that the small filter in the banjo bolt is best removed, all of that is spot on.



.
My vehicle .... 2006 (m59) Berlingo Multispace Desire - 1.6 HDI 92 
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#10
It was from 2010 with the engine DV6. My 2010 is a DV6 with revised injector location etc.
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