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Home > Puma (Tdci) > Fitting an indicator light to show DPF regen?

If it were possible, who would like to have an indicator light which tells you when the DPF regen is taking place?

Yes please

90%

[9]

No thanks

10%

[1]

Total Votes: 10

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milesr3

Member Since: 12 Feb 2013
Location: Suffolk
Posts: 873

2016 Defender 90 Puma 2.2 XS CSW Keswick Green

Mjibex wrote:
The standard light indicates that the filter is almost full, not that 1 regen has not completed.

Didn't say it was. The amber light means that the DPF is nearly full, due to not successfully regenerating by active and passive means. This is the only time you really do need to keep driving until the light is extinguished.

Whilst it makes sense to keep driving if you're in the middle of an active regen you don't have to. The ECU will request regeneration next time the conditions for regeneration are met.

The workshop manual says that regeneration typically occurs every 250 miles, which is very frequent and one of the reasons fuel economy is not great. The DPF is also massive and right on the exhaust manifold, so it's likely that passive regeneration is going to keep it pretty clean.

How many problems have there been with blocked DPFs or oil dilution with Defenders?

Last edited by milesr3 on 12th Jul 2014 11:01am. Edited 1 time in total

12th Jul 2014 10:51am

bell-auto-services

Member Since: 08 Jul 2007
Location: North Yorkshire
Posts: 2232

2013 Defender 110 Puma 2.2 USW Orkney Grey

Re alight, though I appreciate their can be many varients of trying to add a light to the car its probabally possibile that you can pick up from the CAN one of its messgaes for either the DPF or EGR postion during the dpf regen cycle. Inject that into a CAN node and re out put it to flash the mil lightevery 1 second during a regen or simlar.

Or limit torque or rpm during a regen so the driver will feel that its doing a regen, many many ways but all take time i think for possibily little gain to the car overall.

Regards Pete

12th Jul 2014 10:57am

borderterrier

Member Since: 09 Dec 2011
Location: Surrey
Posts: 1677

2013 Defender 110 Puma 2.2 XS CSW Aintree Green

Looks like my hopes rest with Alive Tuning!

12th Jul 2014 11:43am

bell-auto-services

Member Since: 08 Jul 2007
Location: North Yorkshire
Posts: 2232

Their as Alive said is not a lot in the engine ecu that is related to the dpf and lamp enablement especially for out putting it to a seperate lamp of the car so id assume without looking further and deeper it will be to be some in the middle compremise of notification somehow for the driver.

Pete

12th Jul 2014 12:26pm

borderterrier

Member Since: 09 Dec 2011
Location: Surrey
Posts: 1677

Thanks Pete

12th Jul 2014 1:01pm

Mynstral

Member Since: 14 Feb 2012
Location: Essex
Posts: 119

2015 Defender 110 Puma 2.2 USW Montalcino Red

Hi all. Been having a think on this. Is it something a Scangage could be programmed to monitor?

Regards Myn. Smoke me a kipper I'll be back for breakfast.

29th Jul 2014 10:08am

borderterrier

Member Since: 09 Dec 2011
Location: Surrey
Posts: 1677

Dunno. I just want a simple LED in the dash to tell me.

29th Jul 2014 10:19am

pob1968

Member Since: 20 Apr 2014
Location: uk
Posts: 239

Daft as it sounds could the power that feeds the DPF itself be just tapped into to supply a positive to a LED? I am an auto electrical numpty by the way - haven't got a clue but would like to have the light telling me if it's possible. 110 Hardtop

29th Jul 2014 11:26am

borderterrier

Member Since: 09 Dec 2011
Location: Surrey
Posts: 1677

That's what I was thinking too. No know nothing about 'code', a bit of solder and a LED is my limit!

29th Jul 2014 12:11pm

Mjibex

Member Since: 21 Mar 2013
Location: Reading
Posts: 283

2013 Defender 110 Puma 2.2 XS CSW Loire Blue

Or if not as simple as above - a temperature sensor of some sort - the temperature rise should be enough (above a certain temperature) to be indicative of attempted regen.

29th Jul 2014 5:26pm

Juhulia

Member Since: 11 Jul 2013
Location: Dresden
Posts: 17

2012 Defender 110 Puma 2.2 SW Keswick Green

A ctrl light would be great for longer off-road trips.
Most of the short distance pilots are presumably animated to start collecting bonus miles

I suppose that shorter oil change intervals are the best idea for futher investments into that "DPF thing".

But I must say that after about 15k km there have not been any issues with that DPF. I suppose it would be clever to clean the DPF with grill cleaner after about 50k km, wouldn't it?

2nd Aug 2014 7:37pm

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