Renault Captur - DPF Regen

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Fri 9 Oct 2020 07:37
Renault Captur - DPF Regen - mcb100
Has anyone here any current or recent experience of running a Renault/Nissan with a DPF equipped 1.5dci?
It’s a fifth injector set up, so regen diesel injection can’t dilute the engine oil, and I’m looking for real world experience of the frequency of regenerations.
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Fri 9 Oct 2020 07:47
Renault Captur - DPF Regen - RT

Regen frequency will surely depend on driving style and usage pattern - during the summer 8 months I use my VW for long trips and towing, never noticeably ever having a regen - but in the winter 4 months it's only used for short shopping trips so doing an active regen every few weeks.

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Fri 9 Oct 2020 18:58
Renault Captur - DPF Regen - Miniman777

Between 2015-2019 I had a Nissan Juke with the 1.5 engine + DPF, which was replaced last year with a Qashaqi with same engine. The Juke went back to the leasco at 78k miles, the Qashqai has done 10.5k in just under a year.

So in 88k miles of use with the 1.5 engine, 90% has been trips of 20 to 300 miles on fast A roads or motorways, I have (a) never noticed when the regen was taking place, and (b) in that time, (probably due to my driving style) never had a single problem with the DPF whatsoever. Given the scare stores on HJ of DPF issues, I have been very pleasantly surprised on how trouble free both cars have been.

In fairness both cars have been run by me from new, but you wont know the driving style of a used car necessarily or how clogged the filter might be.

The only difference between the two cars engine wise is the Qashqai has an Ad Blue setup, but that's been topped up just once in 10k miles.

There has been favourable opinion for this Renault engine, now I believe in its 6th iteration and probably quite rightly too as this K type engine is widely used by Renault/Nissan/Dacia and in Merc A class too.

Certainly seems less troublesome on regens/oil dilution issues than a British built premium brand.

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Fri 9 Oct 2020 22:49
Renault Captur - DPF Regen - mcb100
That’s exactly the information I was looking for, thank you. I’m familiar with the engine (we’ve had a non-DPF version in the household for the past 11 years), and I’m looking at a DPF equipped Captur.
I’m reassured that Googling ‘K9K DPF problems’ brings back very little, and much of what is there is a few years old.
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Sat 10 Oct 2020 07:15
Renault Captur - DPF Regen - DavidGlos
My experience mirrors that of Miniman. I had a 2014 Qashqai 1.5 dCi from late 2014 to mid 2017 as a company car. Covered around 50,000 in that time, which may explain why there were no DPF issues, but in that time I was never aware of a regen taking place.

Moved job in 2017 and have run a Golf GTD since then. All in all, a nicer car, but although the DPF has worked with no repairs needed, it doesn’t seem to regen passively. Frequently I’ll finish a long drive, only to find the car attempting a regen on the next short run - very annoying. It’s very obvious when a regen is occurring, as the tickover speed increases and the car shakes when idling at traffic lights. I assume that this is because of the extra fuel being injected, but it feels pretty crude and badly designed. Never had anything similar in the Qashqai!
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Sat 10 Oct 2020 08:55
Renault Captur - DPF Regen - craig-pd130
Frequently I’ll finish a long drive, only to find the car attempting a regen on the next short run - very annoying. It’s very obvious when a regen is occurring, as the tickover speed increases and the car shakes when idling at traffic lights. I assume that this is because of the extra fuel being injected, but it feels pretty crude and badly designed. Never had anything similar in the Qashqai!

I had similar with my Mondeo and my two Volvos. On several occasions I'd do a 300 / 400 miles motorway journey, all at relatively high speeds and with the engine working right in its peak torque band, which is supposedly ideal conditions for passive regeneration. Yet in the next day or two, an active regeneration would start while I was on the 5-mile trip to work.

My guess was that the ECU initiates a 'failsafe' active regeneration on a mileage basis (every 500 miles or so) irrespective of the actual soot loading of the DPF.

If that 1.5dCi motor has a separate 5th injector then the regenerations will be much less obtrusive, too.

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