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Diesel particulate filter

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Old May 15th, 2021, 09:03   #1
Chudy85
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Default Diesel particulate filter

Hey,

I am wondering is v90 MY20 D4 giving any visible information that DPF cleaning process has started?

In my previous car Vauxhall i could see it under main consumers. When DPF cleaning was in process there was always rear window heating on and current MPG was dropping by 40%.

I have my Volvo only one month and i haven't noticed any direct or indirect information that this process is running.
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Old May 15th, 2021, 09:29   #2
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I have the S90 with the same engine and have never been aware of any symptoms or indication that one is happening.
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Old May 15th, 2021, 09:37   #3
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Do you have an indication that the stop/start system is available? On my older model the stop/start becomes inactive whenever a regen is in progress.
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Old May 15th, 2021, 09:46   #4
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Do you have an indication that the stop/start system is available? On my older model the stop/start becomes inactive whenever a regen is in progress.
I have possibility to check this on dashboard and on sensus screen probably too. But i am using individual mode as i hate s/s function and this function is disabled by me.
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Old May 15th, 2021, 09:59   #5
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I have possibility to check this on dashboard and on sensus screen probably too. But i am using individual mode as i hate s/s function and this function is disabled by me.
Well I guess you'll not know then. I get no other indication of an active regen in progress... no burning smell, no noticeable drop in economy, no temperature increase, etc. Once in a blue moon it just does its thing in the background for about 23 minutes.
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Old May 15th, 2021, 10:07   #6
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Well I guess you'll not know then. I get no other indication of an active regen in progress... no burning smell, no noticeable drop in economy, no temperature increase, etc. Once in a blue moon it just does its thing in the background for about 23 minutes.
Have you noticed how many miles are you doing between the regeneration cycles?
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Old May 15th, 2021, 11:31   #7
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Quote:
Originally Posted by Chudy85 View Post
Hey,

I am wondering is v90 MY20 D4 giving any visible information that DPF cleaning process has started?

In my previous car Vauxhall i could see it under main consumers. When DPF cleaning was in process there was always rear window heating on and current MPG was dropping by 40%.

I have my Volvo only one month and i haven't noticed any direct or indirect information that this process is running.
That's the whole point , it is not supposed to be noticed , you have a very robust DPF system which works very well .
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Old May 15th, 2021, 11:31   #8
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Have you noticed how many miles are you doing between the regeneration cycles?
I can't be sure, as it hardly ever does an active regen and I don't often drive around with the infotainment system in a mode that'll imply a regen is occurring. I get the feeling (not very scientific, I know) that passive regeneration works very well on this engine/DPF and accounts for the majority of the regen effort.

I have diagnostic equipment that tells me the soot loading of the DPF. Even during lockdown when the car was only being used for short journeys the highest I saw was 12.5g (against a warning threshold of 26g) so I'm now pretty relaxed about the DPF.
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Old May 15th, 2021, 12:20   #9
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I can usually tell when a Regen is happening on my D5PP because there is a distinct (to me) exhaust burble when slowing down on over run to take a corner or pull up, (at slow speeds) whenever this happens I glance at the stop/start symbol and it will be disabled.
It is a subtle change of note that I can notice being the regular driver and know the usual exhaust note
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Old May 15th, 2021, 15:05   #10
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I will try to observe and maybe will see when is starts.

Is there any possibility to see on dashboard coolant temperature or oil? It strange for me as i always had this gauge in other cars.
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