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S80 '98-'06 / S60 '00-'09 / V70 & XC70 '00-'07 General Forum for the P2-platform S60 / V70 / XC70 / S80 models |
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Smoke from a DPF equipped engine?Views : 935 Replies : 11Users Viewing This Thread : |
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Sep 21st, 2018, 19:42 | #1 |
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Smoke from a DPF equipped engine?
Hello all, this might be a bit of a stupid question but here goes
My S60 (D5 EIV 185) has a leaky intercooler; it has been on the list to fix for a while but since it isn't affecting the performance too much at this stage and with an impending house move, it's not on my list of priorities at the moment. I have however noticed grey/black sooty smoke when accelerating briskly – the smoke production seems to coincide with the turbo spooling up and a whistling sound due to the intercooler leak. I never really thought much of this as I know smoke is a symptom of a boost leak, however it occurred to me that the car has a DPF – shouldn't this be capturing some of the black sooty particles? The chrome tipped exhaust is also very black. It reminds me of my old Skoda diesel which didn't have a DPF and would create the same sort of smoke under load, especially if it hadn't been driven hard for a while or after a long journey at constant speed. The car does mainly long journeys involving motorways and A roads. In the 28k miles I have driven so far, I haven’t had any DPF related issues and my MPG is averaging 45-50mpg. I am getting the intercooler sorted in the next couple of months, given that there are no other faults, would this resolve the smoke issue? Cheers |
Sep 21st, 2018, 19:50 | #2 |
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It should indeed trap all smoke or soot to be precise, and if it produces any at mot its now an instant fail. Maybe a previous owner gutted the dpf?.....
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Sep 21st, 2018, 20:04 | #3 | |
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With so many cars around that have had their DPFs butchered by cowboys, there must be quite a few owners who don't even realise that their car has been modified in this way by a previous owner.
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Sep 21st, 2018, 21:04 | #4 | |
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Sep 22nd, 2018, 10:04 | #5 |
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Oh joy, not what I wanted to hear. Is there any way I can check what's going on with the DPF on VIDA? I could have a look under the car to see if it has been tampered with.
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Sep 22nd, 2018, 11:55 | #6 |
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Yes vida can give you the pressure at dpf and calculate how full it is .or if it is working.
you could get to a point where it needs to be removed to clean it / replace it , you really need to sort out the boost leak tho .
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Sep 22nd, 2018, 15:42 | #8 |
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Thank you for the responses, first thing Monday I'll be getting the car booked in with the garage to replace the intercooler and any other hoses etc. that may be leaking. I must confess, I didn't realise how serious this was.
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Sep 22nd, 2018, 23:02 | #9 |
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When my intercooler was blown and the car was over fueling I constantly got puffs of smoke out of the exhaust. The rear of the car was covered in soot too!
Giving the DPF a deep clean isn't that awful ... I did mine (twice in two weeks) I did a thread on it recently here ... https://www.volvoforums.org.uk/showt...def+deep+clean My advice though ..... don't do it until you've fixed your boost leak, or you'll quickly have to do it again! DAMHIK |
Sep 25th, 2018, 13:58 | #10 |
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Thanks, I did see that thread a while back - certainly much cheaper than replacing the DPF. The intercooler is getting replaced next Wednesday, once this is done I will have a look at the pressure and temperature readings on VIDA
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