Home > Technical (L322) > Where did that cloud of smoke come from? |
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mpirie Member Since: 26 Jun 2012 Location: In the Highlands Posts: 898 |
Have you checked for oil in the V?
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13th Mar 2020 7:27am |
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dennij Member Since: 23 Feb 2019 Location: Up North Posts: 450 |
Hi Mike, thanks for the response
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13th Mar 2020 8:10am |
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rjff Member Since: 28 Oct 2017 Location: Cambridgeshire Posts: 1196 |
I am not sure why you should have a smokescreen at a standstill while idling but the on the move one when hammering the throttle sounds very much like the usual "turbo drain mod not done".
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13th Mar 2020 2:01pm |
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Baltic Blue Member Since: 13 Aug 2015 Location: North Wales Posts: 3772 |
I got the mod done on mine whilst it was still under warranty, after I took the service manager out for a little run then booted it down a motorway slip road whilst he was looking back. Even he said, “ it’s pretty bad isn’t it “
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13th Mar 2020 2:10pm |
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dennij Member Since: 23 Feb 2019 Location: Up North Posts: 450 |
Drove home tonight on motorway sitting at 65mph no further DPF light which was a blessing. Got stuck behind a tractor for about 2 minutes when close to home which isn’t unusual and meant crawling along at 10mph. Finally got past tractor and stopped at the next junction only to have the smokescreen reappear. As no one was behind me I just thought I would watch and see how long it would take to clear if I didn’t touch the accelerator. Took about 20 seconds to clear in total and a tiny puff when I pulled away again.
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13th Mar 2020 5:08pm |
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mjdronfield Member Since: 04 Nov 2011 Location: Derbyshire Posts: 7801 |
I had this for a while. Main reason is I didn’t get the second turbo in enough, so oil built up, came out when I accelerated.....then cleared.
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13th Mar 2020 5:49pm |
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Baltic Blue Member Since: 13 Aug 2015 Location: North Wales Posts: 3772 |
The symptoms you are describing do not suggest you need to do the turbo. drain mod.
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13th Mar 2020 5:54pm |
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dennij Member Since: 23 Feb 2019 Location: Up North Posts: 450 |
Hi Mike I know what your saying about the valve guides and wear but I have no smoke on start up and car has just turned 116,000. This smoking issue seems more like the car has decided to do a full regent once I’m stationary, all very odd.
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13th Mar 2020 7:17pm |
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GGDR Member Since: 26 Nov 2016 Location: London Posts: 3544 |
Have you got an IIDTool?
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13th Mar 2020 9:11pm |
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dennij Member Since: 23 Feb 2019 Location: Up North Posts: 450 |
Hi Greg, no IID tool I'm afraid, I do have a Hawkeye Total but not sure if that will give me soot readings or regen information but will take a look and let you know. |
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14th Mar 2020 7:51am |
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dennij Member Since: 23 Feb 2019 Location: Up North Posts: 450 |
Just found this about different types of DPF regeneration
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14th Mar 2020 8:32am |
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GGDR Member Since: 26 Nov 2016 Location: London Posts: 3544 |
Plenty more info here:
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14th Mar 2020 8:45am |
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dennij Member Since: 23 Feb 2019 Location: Up North Posts: 450 |
OK so I have run some diagnostics but to me I would say that the information given on some of the screens in inaccurate.
The above reports too many events and cleared with no problem The above apparently shows soot mass but at this stage I had no amber warning light Not sure why this one was there but cleared and showed no problems. The diagnostics claim they can carry out a regen of the DPF so long as certain conditions are met, these include less than 35g of soot, engine at normal operating temperature and driving above 40kmh. I decided to give this a try as the reported soot levels were high so went out for a drive. Engine up to temp I scrolled through the menus to find the right option and found the right stretch of road to carry this out. DPF regen selected, all conditions met, all I had to do now was press the button when I was at 40kmh (decided to wait until I was at 50mph). Message pops up to say that the regen had been started and about 3 seconds later the message came back that it had completed. Not a chance in that time. Pulled over and checked soot levels, they read exactly the same. Tried the process three more times but each time the outcome was the same. Now I have the red warning (2nd time I've had this) so I limped home and read the soot levels, surprise surprise, they read exactly the bloody same. So although this diagnostics machine is OK at certain things, it seems that some of the options it claims to be able to do are stretching it's capabilities. Time to order the IID Tool then I think. I will have to get the car back to my Indy this week, last time I had this they cut the exhaust and carried out a full clean as well as fixing a couple of induction leaks which seemed to be the cause. Since then I have covered 1,000 miles in 5 months but as I don't use the car much that doesn't surprise me. What does though is the fact that I am back at the red DPF situation after such short mileage, when I do use the car it is generally for longer runs rather than town driving so realistically I shouldn't see the amber warning yet alone the red. Only yesterday I had to carry out an unscheduled motorway trip to clear the amber. Somehow I feel that the smoke issue and the DPF filling up are related, just need to find the cause now. |
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14th Mar 2020 11:00am |
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GGDR Member Since: 26 Nov 2016 Location: London Posts: 3544 |
Yes they are definitely related in my view
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14th Mar 2020 11:41am |
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