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Gal Dove

Member Since: 22 Jan 2022
Location: South Wales
Posts: 62

2014 Defender 110 Puma 2.2 USW Corris Grey

Puma 2.2 DPF query

Hi everyone.

Defender 110 Utility, MY 2014, 2.2 Puma - 26k miles.

Recently (>100 miles ago) I did engine oil + filter change (Millers C1 low SAPS).
I do quite regular oil & filter changes, this is despite me doing only around 3k miles per year as I feel that the DPF re-gen thing probably kicks in more often than if I regularly did longer runs at higher speeds - which I don't. My runs are usually short (circa >10 miles) but the car gets used every day.

Since the recent oil change, I've noticed that, after around a mile from the start of a journey, the engine gives a slight 'cough' and the tone of the engine changes to what I can only describe as if the whole engine is being run just below the surface of a body of water(!). Sorry, but this the only way I can describe the sound!

This has happened a couple of times recently and I've assumed that this is an attempt by the engine to go through a DPF re-gen cycle. As such, I recently took the car on a longer run, but this was still only on A roads, so I ran the car in lower gears (3rd/4th) and kept the RPM up at around 3,000 revs. I did this for a healthy 20 mins (as described in the JLR Owner's Handbook).

I also checked the oil level after this and noted that I might have slightly over filled after the oil change - the oil stick level was ever so slightly over the top of the top mark on the stick when the oil was up to working temp. So I dropped around 0.25 litre out and monitored from there.

Having taken the car out today, the engine seemed to be behaving the same way after around 0.5 mile into the journey.

I think that I know the answer to this but can I assume that the engine is continuously trying to cycle through a 'deep' DPF re-gen (I understand that there are maintenance re-gen cycles and deeper cycles?) and that this will eventually rectify itself?

Or, do I have to get the car up to (and maintain) a certain speed in order to rectify the situation? In other words, is the DPF re-gen cycle dictated by the RPM of the engine or the speed of the car - or both?

If I'm guessing correctly that this is just multiple attempts at either a maintenance or 'deep' DPF re-gen, then I'm also guessing that my nice new oil is slowly being turned in to a diesel lubricant?! And if that's the case I'll end up having to do another engine oil change in the near future!

Any advice would be very welcome.

29th Apr 2024 7:04pm

Scotm

Member Since: 28 Feb 2014
Location: Aberdeenshire
Posts: 646

2012 Defender 110 Puma 2.2 SW Orkney Grey

I would suggest getting an obd reader and it should tell you status of dpf. It will also show you the cat/dpf temperature and you will know it is regenerating as the temperature reaches around 600degC.

29th Apr 2024 7:38pm

Gal Dove

Member Since: 22 Jan 2022
Location: South Wales
Posts: 62

Hi Scotm.

Thanks for the recommendation. I'm not sure that I at that point yet but have looked around and spotted a few OBD readers - notably the Vgate iCar Pro - but according to Amazon it's not a comparable device with the Puma.

Are you able to point me at another Defender friendly one?

29th Apr 2024 8:19pm

Dinnu

Member Since: 24 Dec 2019
Location: Lija
Posts: 3218

2012 Defender 90 Puma 2.2 CSW Santorini Black

I use an ELM327 and Car Scanner on smart phone. I could check the dpf load on mine which was showing as 40%. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black

29th Apr 2024 8:25pm

andy63

Member Since: 30 Jun 2023
Location: north east
Posts: 274

2014 Defender 110 Puma 2.2 CSW Aintree Green

You might try downloading the torque pro app.. When I had a dpf I'm sure it was capable of displaying at least a couple if not the three exhaust gas temp readings..
I don't remember seeing any readings for the differential pressure sensor.. But still a worthwhile few pounds for the pro version👍

29th Apr 2024 8:27pm

Gal Dove

Member Since: 22 Jan 2022
Location: South Wales
Posts: 62

Thanks for tye suggestions so far ….this is assuming that this is a DPF issue or that the engine is attempting to cycle a re-gen?

I’m on iOS so I’d ideally need a OBD reader that is compatible- but I’d only bother buying one if there is some sort of issue which I’m not sure there is? Maybe it’s just my driving style and mileage?

Is anyone able to confirm the engine sound and behaviour that I described as being those of a DPF cycle?

29th Apr 2024 9:15pm

Dinnu

Member Since: 24 Dec 2019
Location: Lija
Posts: 3218

When I had standard exhaust, on a 90, I could not detect when it was doing a regen. However when I replaced with a straight through mid section, I can hear a change of tone in the exhaust which I also attributed to a regen cycle. The engine feels a bit more responsive too during regen.

The ELM327 I referred to connect via wifi to an iphone. Downloaded Car Scanner from app store. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black

30th Apr 2024 2:01am

Petronius4

Member Since: 07 Oct 2015
Location: Somerset
Posts: 93

2015 Defender 90 Puma 2.2 SW Keswick Green

Plan a day trip, get on the motorway and drive non stop (averaging 50+ mph) for an hour turn around. Repeat. This will give the DPF chance to deep cycle and work its magic. -------------------------------
👲🏻 1986 ex-Military 90 NAD 2.5 Soft Top. Sold
🇬🇧 2015 Defender 90 - Ripon Landrover Heritage 006

30th Apr 2024 12:10pm

trevorg

Member Since: 28 May 2022
Location: Aisne
Posts: 46

2012 Defender 90 Puma 2.2 SW Indus Silver

The only time I know the DPF is going through a regen cycle is when the orange indicator light shows on the dashboard. I don’t notice any change in exhaust sound. 2012 90SW - 2.2TDCI

30th Apr 2024 3:20pm

Jerry

Member Since: 13 Nov 2015
Location: Cardiff
Posts: 174

2015 Defender 110 Puma 2.2 Adventure Phoenix Orange

I have never seen any light on the dash, nor noticed any difference in engine noise. But I can detect a difference in exhaust smell if its still running and I have popped out to get something out of the boot. Acrid. I presume that's the DPF doing its job. (I have read somewhere that if its clogged then it needs to cleared by the garage - but maybe thats incorrect).

30th Apr 2024 4:35pm

Ianh

Member Since: 17 Sep 2018
Location: Essex
Posts: 1796

trevorg wrote:
The only time I know the DPF is going through a regen cycle is when the orange indicator light shows on the dashboard. I don’t notice any change in exhaust sound.

There is no visual indication on the dashboard to tell you the DPF is going through a regeneration.

The amber light you are seeing is a warning light, telling you your DPF is over full and the vehicle needs to be immediately taken on a long high speed run to undertake and complete an active DPF regeneration.

If this is not done soon then the red DPF light comes on, and I believe limp mode is activated. At this point a static forced regeneration needs to be implemented with diagnostics tools, which in some instances still do not clear the DPF and specialised DPF cleaning or potentially a new DPF is required.

30th Apr 2024 7:02pm

trevorg

Member Since: 28 May 2022
Location: Aisne
Posts: 46

You are correct, my mistake, the amber warning indicates that the particulate filter is nearly full and you should proceed to drive such that the auto regeneration process commences and not that it is actually in process.
My amber warning light illuminated last week as I was leaving the channel tunnel but, with 300kms of autoroute driving at a steady 100kms/hr, there was no indication of a change in the exhaust sound whilst the regeneration was in process. The truck goes in for its annual pollution check next week and I will then be told how effective it has been! 2012 90SW - 2.2TDCI

30th Apr 2024 7:34pm

Vitesse

Member Since: 21 Mar 2014
Location: Sussex
Posts: 373

2015 Defender 90 Puma 2.2 XS CSW Santorini Black

I notice a definite engine change note during the regen. I use an ultragauge on the dash and this shows the temperatures as they rise and fall. I bought my car new in 2015 and is a daily driver. Never had a dpf light on and I change the oil every 6000 miles. But certainly the system does regen about once a week. I do about 200 miles in that week. Total mileage now is 94000. 2015 90 XS Santorini Black

2nd May 2024 9:05am

macfrank

Member Since: 05 Nov 2015
Location: somewhere in the north
Posts: 996

2015 Defender 110 Puma 2.2 SW Keswick Green

As for correctly reading the oil dip stick try my patented, forum-approve method

:
don't insert it fully, leave it out by 20mm, then the oil level will be inside the waffle section; max should be 20mm below the top end, easy so see an overfill;
also when you insert the stick have the waffle pattern face towards the engine to avoid scrubbing oil off the pipe
https://www.defender2.net/forum/topic79934.html (down the page)

2nd May 2024 10:16am

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