Vauxhall insignia (59 plate) - DPF regen while parked? - fetunchandrapatel

Can I regen my dpf by parking my car and just leaving the engine running?

Vauxhall insignia (59 plate) - DPF regen while parked? - RobJP

No.

Cars need to be running at reasonably high revs and at speed to regen. Do also note that the regen on the DPF produces quite a lot of heat, which you really want to be dispersed rapidly (which is why airflow from speed is needed to cool the exhaust system).

Vauxhall insignia (59 plate) - DPF regen while parked? - craig-pd130

A regeneration that's already started can continue once the car is stationary with handbrake on, etc - both my current Volvos and my Mondeo IV TDCI do / did this.

The engine fan usually switches on during a regen to help disperse the underbonnet heat.

However the regen might not continue to completion (i.e. under 5% soot remaining) because at idle, the engine may not be able to maintain the required exhaust gas temp conditions.

Of course, regenerations can be forced by hooking the car up to a diagnostic computer and triggering it via the ECU, and these are done with the car stationary.

Vauxhall insignia (59 plate) - DPF regen while parked? - skidpan

Regens will fail unless there is sufficient load, revs and temperature. A forced regen with the dealers computer controlling things allows the regen to complete.

All you will achieve by letting the car idle is a bigger than normal fuel bill and annoyed neighbours.

Vauxhall insignia (59 plate) - DPF regen while parked? - RT

No.

Cars need to be running at reasonably high revs and at speed to regen. Do also note that the regen on the DPF produces quite a lot of heat, which you really want to be dispersed rapidly (which is why airflow from speed is needed to cool the exhaust system).

It;s a Fiat-originated diesel in the Insignia and forced regens can be performed by the roadside - Royal Mail staff are trained to do just that with their Doblo vans which need them frequently due to the stop/start nature of mail vans.

Vauxhall insignia (59 plate) - DPF regen while parked? - fetunchandrapatel

Appreciate the swift responses everyone. I think I'll give my bright idea a miss!!

Thanks again!

Vauxhall insignia (59 plate) - DPF regen while parked? - TopScot

When I had a hired insignia as a taxi the DPF was my biggest bug bare! If I wasn't near a motorway I'd sit at the side of the road and rev it up to 3000 rpm till the dpf full message cleared. If you are Gonna do it be warned the car will smoke like f**k!!

Vauxhall insignia (59 plate) - DPF regen while parked? - gordonbennet
It;s a Fiat-originated diesel in the Insignia and forced regens can be performed by the roadside - Royal Mail staff are trained to do just that with their Doblo vans which need them frequently due to the stop/start nature of mail vans.

Am i the only one itching to be let in on the secret, cos i'm gagging to know all about it...is there a magic way with other vehicles 'blessed' with satans diabolical DPF or have RM had some special trickery programmed or fitted into their fleet..couldn't blame them if they did othewise they could easily have hundreds of the things breaking down and their workshops glowing red from the heat of forced regens.

Vauxhall insignia (59 plate) - DPF regen while parked? - TopScot

Have you thought of getting the DPF cut out? It's probably your cheapest option.

Vauxhall insignia (59 plate) - DPF regen while parked? - gordonbennet

Have you thought of getting the DPF cut out? It's probably your cheapest option.

Not for me, i gave up Diesel cars completely about 3 years ago and can see no earthly reason to go back.

I just want to know the secrets of user regens.

Vauxhall insignia (59 plate) - DPF regen while parked? - TopScot

Don't blame you! To be fair the Korean engines don't seem to suffer the usual diesel headache problems.

Edited by Ciaran Taxi on 24/07/2015 at 17:03

Vauxhall insignia (59 plate) - DPF regen while parked? - gordonbennet

To be fair the Korean engines don't seem to suffer the usual diesel headache problems.

That's interesting, i did like the last Kia Magentis, which i suspect was aimed fairly and squarely at the taxi market, but they didn't really sell all that well.

Vauxhall insignia (59 plate) - DPF regen while parked? - RT
It;s a Fiat-originated diesel in the Insignia and forced regens can be performed by the roadside - Royal Mail staff are trained to do just that with their Doblo vans which need them frequently due to the stop/start nature of mail vans.

Am i the only one itching to be let in on the secret, cos i'm gagging to know all about it...is there a magic way with other vehicles 'blessed' with satans diabolical DPF or have RM had some special trickery programmed or fitted into their fleet..couldn't blame them if they did othewise they could easily have hundreds of the things breaking down and their workshops glowing red from the heat of forced regens.

It can only be forced without electronics if the DPF light is already lit and limp mode activated. Park in the open air where smoke won't affect others. Switch engine off, ensure gears in neutral, press throttle fully and hold down, start engine - it should run at constant 2,000 rpm and automatically initiate a forced regeneration so remove foot from throttle and allow the regen to run/complete, indicated by the DPF light going off. Restart engine normally and drive away.

Vauxhall insignia (59 plate) - DPF regen while parked? - gordonbennet

Thanks for that RT.

There really should be some way of putting more information for drivers of these vehicles up on the dash, such as the cuurent state of play of the DPF and some info about impending/current regen requirements, OK so some people won't have the foggiest idea what's going on, but there are many owners/drivers who would welcome having the opportunity to complete a regen without having to drive aimlessly up and down the open road whilst the car does its thing...let alone how invaluable such a possibility would be to urban dwellers who don't have the option to continue an open road jaunt to nowhere.

Vauxhall insignia (59 plate) - DPF regen while parked? - RobJP

Bearing in mind that there are a fair few drivers who will keep on driving with a RED oil can symbol lit up on the dash until the engine self-destructs, I'd question the value of giving even more information to a lot of people.

Vauxhall insignia (59 plate) - DPF regen while parked? - gordonbennet

Fair comment Rob, i was more thinking that such information should require a certain understanding of such things to enable the display to be triggered at all.

Some people wouldn't want to know and the info would be as much use to them as the oil pressure light apparently is.

Vauxhall insignia (59 plate) - DPF regen while parked? - TopScot

I'm a taxi driver and I sware by the Korean engines. Whilst the TDCI and CDTIs are off the road with DMF failure, injector issues chocked up EGR valves, DPF problems. Everyone on the fleet with the hyundai/kia unit has suffered none of these - they are now becoming a hot favourite

Vauxhall insignia (59 plate) - DPF regen while parked? - RT

Hyundai/Kia are getting their share of blocked EGR issues - part of that issue generally is that not enough attention is given to the ACEA grade specified by the car maker - so quality oil of the wrong ACEA grade will screw things up quicker than cheap oil of the correct ACEA grade !

Edited by RT on 25/07/2015 at 16:14

Vauxhall insignia (59 plate) - DPF regen while parked? - RT

Thanks for that RT.

There really should be some way of putting more information for drivers of these vehicles up on the dash, such as the cuurent state of play of the DPF and some info about impending/current regen requirements, OK so some people won't have the foggiest idea what's going on, but there are many owners/drivers who would welcome having the opportunity to complete a regen without having to drive aimlessly up and down the open road whilst the car does its thing...let alone how invaluable such a possibility would be to urban dwellers who don't have the option to continue an open road jaunt to nowhere.

When Royal Mail started getting regular DPF issues from their new fleet of Doblos (because their useage pattern is unsuitable for diesel DPF!) I guess Fiat had no choice but to give the information and for Royal Mail to issue it to their drivers.

Some diagnostic computers can show the DPF % blocked and carry out a regen from the electronics - that should be made available to users.

Vauxhall insignia (59 plate) - DPF regen while parked? - Manatee

Makes a bit of a mockery of fuel figures and air quality.

It certainly does. I assume that the official figures do not allow for normal DPF cleaning - my Outlander will do no more than 30mpg for anything up to 10 miles after it starts.

Worth mentioning that this happens less frequently on Shell V-Power than on standard diesel - I haven't measured it propelry yet but I think it is nearer every 600 miles rather than 300.

Vauxhall insignia (59 plate) - DPF regen while parked? - Stanb Sevento

Thanks for that RT.

There really should be some way of putting more information for drivers of these vehicles up on the dash, such as the current state of play of the DPF and some info about impending/current regen requirements, OK so some people won't have the foggiest idea what's going on, but there are many owners/drivers who would welcome having the opportunity to complete a regen without having to drive aimlessly up and down the open road whilst the car does its thing...let alone how invaluable such a possibility would be to urban dwellers who don't have the option to continue an open road jaunt to nowhere.

I agree Gb that information and understanding is key to DPF problems, if drivers new what their cars needed and what to do about it problems would be minimal. Another issue is that there is a vast difference between makes and model years in terms of how they work and how best to use them. A 2009 DPF is a different animal from a 2015 and uses a different system. Cars with a SCR work differently from cars using a LNT and car makers will not give out information.

I can only speak for my car but since I got a little program that connects to an OBD reader and can see what is going on while I drive I have had to unlearn a big chunk of what I thought I knew. There is no passive regen ever, even at 70+ going up hill. On motorways soot stops building, its cleared as fast as its produced but never reduced. During an active regen fuel is injected in three phases into the exhaust gas heating up the DPF and burning off the soot. This process hardly seems speed related at all, it works faster a higher speeds but still works down to 30mph and likley lower still.If you stop at a junction the ECU keeps the heat up and it carries on when you start moving again. No Italian tune up required.

So my worries about driving for hours on minor roads at 30 to 40mph were unfounded, the DPF is well up to looking after itself. Why the hell could'nt VAG have told me that.

Edited by Stanb Sevento on 05/08/2017 at 17:22

Vauxhall insignia (59 plate) - DPF regen while parked? - IAN Weddell

I wonder how taxi drivers cope with the dpf pain?

Vauxhall insignia (59 plate) - DPF regen while parked? - Big John

I wonder how taxi drivers cope with the dpf pain?

Many taxis seem to be Toyota hybrids these days

Vauxhall insignia (59 plate) - DPF regen while parked? - TopScot

We take them on the motorway, keep it in 4th gear and give it a ruddy good thrashing for 20 mins!!

Edited by Ciaran Taxi on 07/08/2017 at 12:06

Vauxhall insignia (59 plate) - DPF regen while parked? - RT

We take them on the motorway, keep it in 4th gear and give it a ruddy good thrashing for 20 mins!!

Is that the airport run?

 

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