DPF and traffic jams, I wonder ....
Moderator: RichardW
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- (Donor 2016)
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DPF and traffic jams, I wonder ....
I was reading about the sudden snowfall in the Alps that left some people in traffic jams for 11 hours or more, and thinking that it could well have been me on one of my trips.
Then I thought, well at least I always make sure I have a full tank of diesel before I go into the mountain bits so I could keep the engine running to keep warm.
Then I thought, what about the DPF, would I end up getting a bing bong warning after a while, followed by a bing bong I'm stopping message and days waiting for a tow truck. Then I thought maybe everyone with a DPF ends up freezing to death of they get stuck in a big jam in the Alps. Surely not.
So, those of you who understand the workings of the things, what happens in that sort of situation, and what is the best strategy, starting and stopping the motor regularly, just leave ticking over ..... or?
Then I thought, well at least I always make sure I have a full tank of diesel before I go into the mountain bits so I could keep the engine running to keep warm.
Then I thought, what about the DPF, would I end up getting a bing bong warning after a while, followed by a bing bong I'm stopping message and days waiting for a tow truck. Then I thought maybe everyone with a DPF ends up freezing to death of they get stuck in a big jam in the Alps. Surely not.
So, those of you who understand the workings of the things, what happens in that sort of situation, and what is the best strategy, starting and stopping the motor regularly, just leave ticking over ..... or?
Richard_C
Current: , C4 Picasso 120 BlueHdi, C3 1.2 Auto
Past Citroens: Dyane (x2), 2CV, Visa, BX (x2), Xantia, Xsara Picasso, C3 (x2) C5 X7 Tourer, Synergie 1.9TD, C1
Others: Hillman Hunter, Cortina Mk 1, Maxi, VW Type 2, Granada, SAAB 900, SAAB 9-5, R5 Gordini
Current: , C4 Picasso 120 BlueHdi, C3 1.2 Auto
Past Citroens: Dyane (x2), 2CV, Visa, BX (x2), Xantia, Xsara Picasso, C3 (x2) C5 X7 Tourer, Synergie 1.9TD, C1
Others: Hillman Hunter, Cortina Mk 1, Maxi, VW Type 2, Granada, SAAB 900, SAAB 9-5, R5 Gordini
Re: DPF and traffic jams, I wonder ....
just sit there red lining/static regen'ing it
this would also melt the snow
this would also melt the snow
Regards, malcolm.
current ride a BX 1.7 TZD estate
1986 MK1 BX 1.9na D Auto(in Mothman Andy's stable )
layed up roppy 1.9TD XANT estate, now gone to meet her maker
purple and lilac metalic 2CV(VIOLET)registered to her in doors
1972 DS special been layed up aprox 31 years
current ride a BX 1.7 TZD estate
1986 MK1 BX 1.9na D Auto(in Mothman Andy's stable )
layed up roppy 1.9TD XANT estate, now gone to meet her maker
purple and lilac metalic 2CV(VIOLET)registered to her in doors
1972 DS special been layed up aprox 31 years
- bobins
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Re: DPF and traffic jams, I wonder ....
Use a rental car, then the problem goes away
Sadly no longer a C5 owner
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Re: DPF and traffic jams, I wonder ....
Rental cars handle better too
'96 405 1.6 GLX with 306 GTI engine on Cat cams @ 195bhp
'05 RenaultSport Clio 182 Cup, 102k
'97 406 1.9TD, 314k.
'05 RenaultSport Clio 182 Cup, 102k
'97 406 1.9TD, 314k.
- Stickyfinger
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Re: DPF and traffic jams, I wonder ....
Naaa.....Company cars....they do not even need oil or water, my old company Calibra 4x4 was great at carrying logs as well !, the Dealer was convinced the rear struts were a weak point of the car !
Talking about jams in the cold.....after a relatively short time a HDI engine will over cool its oil and drag it into the cylinders damaging the DPF.....
Talking about jams in the cold.....after a relatively short time a HDI engine will over cool its oil and drag it into the cylinders damaging the DPF.....
Alasdair
Activa, the Moose Rider
3x C5x7 Steering racks and counting
Activa, the Moose Rider
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Re: DPF and traffic jams, I wonder ....
These diesels are awesome! What was the reason for these engines again? That's it........to save money on fuel and spend it on problems
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- Stickyfinger
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Re: DPF and traffic jams, I wonder ....
Disagree, like ANY complicated piece of machinery a Diesel needs maintaining. Petrol Chip controlled lightweight engines have leaped forward in reliability (remember twin carbs ?, my "other car" is on 4x Webers balanced to twin mixer inlets !...run that for ten years LOL) because the tolerances are a lot tighter, a Diesel is no different.lexi wrote:These diesels are awesome! What was the reason for these engines again? That's it........to save money on fuel and spend it on problems
Modern cars are precision engineering, we forget that it needs precision, skill across many disciplines and a developed level of problem solving to keep them working for 10 years plus !....these are skills that many "customers" also lack massively when choosing a "professional" to work on their £5-10 K investment !
I have seen no increase or decrease in my maintenance cost across petrol or diesel, its a myth !
Alasdair
Activa, the Moose Rider
3x C5x7 Steering racks and counting
Activa, the Moose Rider
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Re: DPF and traffic jams, I wonder ....
I agree completely with all that. Some people would perhaps like a return to the golden olden days, where their A-series needed a rebore after 30,000 miles, or the big ends had gone. At least you could change the engine in a couple of hours yourself eh?...Stickyfinger wrote:Disagree, like ANY complicated piece of machinery a Diesel needs maintaining. Petrol Chip controlled lightweight engines have leaped forward in reliability (remember twin carbs ?, my "other car" is on 4x Webers balanced to twin mixer inlets !...run that for ten years LOL) because the tolerances are a lot tighter, a Diesel is no different.lexi wrote:These diesels are awesome! What was the reason for these engines again? That's it........to save money on fuel and spend it on problems
DPFs and all the pollution gear, is, in my view essential. We've forgotten the amount of soot and crud engines used to chuck out 20 or 30 years ago. I spent some time abroad recently where they have a lot of old-tech diesel and petrol stuff, and the pollution they cause is visible and shocking. Changed my mind about it all, that's for sure.
- Stickyfinger
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Re: DPF and traffic jams, I wonder ....
Yep, there was a very good reason for 20/50 motor oil other than for lawn mowers !
I miss soft iron valve seats, non starters when below +3 (or slightly moist), Lucky Lucas electrics, BL King Pins, leaking leaver shocks
and
lead in petrol.
I miss soft iron valve seats, non starters when below +3 (or slightly moist), Lucky Lucas electrics, BL King Pins, leaking leaver shocks
and
lead in petrol.
Alasdair
Activa, the Moose Rider
3x C5x7 Steering racks and counting
Activa, the Moose Rider
3x C5x7 Steering racks and counting
- bobins
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Re: DPF and traffic jams, I wonder ....
How long before garages start pushing a 'DPF Cleanup' as part of your annual or two yearly service for a 'small additional payment' with the selling point is that it's done to improve the health of your filter and if you don't have it done, you could be stranded miles from home with a blocked filter. This 'service' will consist of a forced regen and/or a damn good thrashing up and down the dual carriageway. Or do they already try and sell this service ?....... You can tell how long it's been since I used a garage to service my car !
Sadly no longer a C5 owner
Re: DPF and traffic jams, I wonder ....
I HIGHLY doubt that idling for 11 hours as a one off would cause any problems for a DPF that is otherwise healthy.Richard_C wrote:I was reading about the sudden snowfall in the Alps that left some people in traffic jams for 11 hours or more, and thinking that it could well have been me on one of my trips.
Then I thought, well at least I always make sure I have a full tank of diesel before I go into the mountain bits so I could keep the engine running to keep warm.
Then I thought, what about the DPF, would I end up getting a bing bong warning after a while, followed by a bing bong I'm stopping message and days waiting for a tow truck. Then I thought maybe everyone with a DPF ends up freezing to death of they get stuck in a big jam in the Alps. Surely not.
So, those of you who understand the workings of the things, what happens in that sort of situation, and what is the best strategy, starting and stopping the motor regularly, just leave ticking over ..... or?
DPF's get clogged up over hundreds of miles of slow driving where the engine is generating soot and the DPF is storing it but it doesn't get a chance to regenerate as it's not getting hot enough. We're talking about over weeks or even months of normal driving, not hours.
You're only talking about a few hours, and a few hours at idle at that - soot production is likely to be low during idle as the mixture is extremely lean with the throttle closed. (When you put your foot down heavily to accelerate is when most soot is produced - remember the exhaust patterns of pre DPF diesels ?)
As long as you didn't do this all the time I reckon you'd be fine, unless someone has some personal experience to the contrary ?
Simon
1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
2016 Nissan Leaf Tekna 30kWh in White
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1977 G Special 1129cc LHD
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1977 G Special 1129cc LHD
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Re: DPF and traffic jams, I wonder ....
They already offer this service for approx £60 extra. All they do is chuck a can of DPF cleaner (approx £15) into the tank. Thats a damn good mark up for 1 minutes work.bobins wrote:How long before garages start pushing a 'DPF Cleanup' as part of your annual or two yearly service for a 'small additional payment' with the selling point is that it's done to improve the health of your filter and if you don't have it done, you could be stranded miles from home with a blocked filter. This 'service' will consist of a forced regen and/or a damn good thrashing up and down the dual carriageway. Or do they already try and sell this service ?....... You can tell how long it's been since I used a garage to service my car !
09 C5 X7 2.0Hdi Exclusive in Perla Nera black (the best colour)
Re: DPF and traffic jams, I wonder ....
(-expletive removed-)` ell! Is that Julian Assange in disguise for a day out sightseeing in London?Stickyfinger wrote:Yep, there was a very good reason for 20/50 motor oil other than for lawn mowers !
I miss soft iron valve seats, non starters when below +3 (or slightly moist), Lucky Lucas electrics, BL King Pins, leaking leaver shocks
and
lead in petrol.
Citroen C5 1.6 HDI 110bhp Estate 06 plate
French Mistresses gone.
Citroen C5 HDI Mk 1 hatchback
Vel Satis 3.5 v6
ZX 1.9D Est.
ZX 1.9DHatch
Xantia 1.9td est.
Xantia 2.0 hdi Est.
Xantia V6 MK1
Xantia V6 MK 2
French Mistresses gone.
Citroen C5 HDI Mk 1 hatchback
Vel Satis 3.5 v6
ZX 1.9D Est.
ZX 1.9DHatch
Xantia 1.9td est.
Xantia 2.0 hdi Est.
Xantia V6 MK1
Xantia V6 MK 2
- Stickyfinger
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Re: DPF and traffic jams, I wonder ....
Dats me Brother DUDE, you dissing my Kith & Kin ? ....If you are, you will squeal like a pig boy !....here piggy piggy.....----SQUEAL PIGGY---SQUEAL
Alasdair
Activa, the Moose Rider
3x C5x7 Steering racks and counting
Activa, the Moose Rider
3x C5x7 Steering racks and counting