Diesel Particulate Filter Fundamentals 

Thanks for the great video. It's particularly helpful to have the oscilloscope traces for the injector pulses too, as it helps show exactly what the ECU/EMS is doing (or trying to do) in a regeneration cycle and it's not something that other auto channels or publishers seem to do. Thanks again!

Detailed and clear explanation. Keep up the good work!

You have missed out one key issue: During dynamic regen, the blasts of diesel during the post injection could reach the cylinder walls, and it's washed into the engine oil. If you are running with a clogged DPF, you car will constantly want to regenerate. In my car, had a clogged DPF, but the waring light failed to indicate it soon enough. I have ran about 500miles with it when the light came up. The engine oil level was 1/2" inch above the max line (had an oil change about 300miles beforehand, so the level was good to begin with), and it also smelled like burnet oil and diesel. In the end I sent the filter for cleaning and oil change, and they drained 1liters more oil than the maximum. The factory oil amount in that car was 5,3L, so it was diluted around 20%. So this could ruin your engine. Also mine had a timing chain, which is sensitive to oil quiality. In the end I didn't kill the car because we spotted the issue, but oil dilution is a very big problem!

Great video. Very well explained how DPF works.

Excellent. Thank you and Well done.

Very useful, thanks!

Good morning,really an instructive video,many many thanks

thank you So much for this information

Very informative thanks very much

Really helpful, deep & precious content. Thank you very much.

Very nice and informative video. My Mercedes Benz diesel had a restricted DPF and the only solution was have it opened and professionally cleaned in a DPF Cleaning Shop. It cost me $350.00. An online shop asked me asked me a "low price" of $2,000.00 for a remanufactured DPF. Mercedes DPF can only be opened cutting it in two and later welding it back.

Great informational video

Great info!

Thank you for explaining

Thanks for the video

Been driving DPF cars since 2005. First was a 2001 Peugeot 406 HDi. So far I've had no problems with them.

I'm working on this now

thanks! for the great info

great video!

Thanks a lot .

Merci !

Very nice sir

Pls if my sound of engine on loo and pulling too comes down,can it be the particular filter

You forgot to mension the system with an extra injector fitted close to the DPF, like renault. That ensures a effective regeneration cycle even in slow traffic with lots of idle time

Bravo

Thanks.

The best way to clean dpf is to completely take off exhaust system and flush out all soot with paint thinners from both sides period....

thankyou.

The government should have stipulated that there are to be 5 or so standard DPF capsules in all cars that can be removed from the metal casing by opening clamps. There should have been a minimum price DPF manufacturer in every city that takes the the DPF and either cleans, rebuilds or recycles them.

Hi there. I would be grateful for your advice. I have a 2013 diesel cruze 2.0L with BRAND NEW Full motor and a BRAND NEW DPF with brand new oxygen and temp sensors and with less than 10,000Km since install. In the last couple of month i have been getting frequent diesel white smoke every 100km or so and NOT on cold start. It showed P11FF code Fuel pump command signal counter incorrect. the wires to the Fuel pump are all intact and the car start first click with no flat or week spots across the revs. I would appreciate your advice. Thanks in advance

So what you are saying is, instead of venting exhaust as normal, we are now storing the harmful particles until full then dumping more fuel and particles in the system in an attempt to clean it out? Common Rail diesels typically have higher fuel consumption than pre common rail diesels so doesn't this increase the particulate count and make pollution worse?

I hate the DPF - I am always having issue with it in my 2009 Diesel Hyundai Santa Fe! Can it be removed without complications to other parts etc??? Will it cause sensor issue with the computer etc?

Blocked DPF will cause the engine to dump diesel into the engine oil - dipstick reads higher. Short trips cannot clear the DPF, replace it

I love my 2002 F250 With the 7.3L no EGR NO DPF!!

All you need to do now is make the fuckers more reliable and hassle free.

Does diesel system cleaner clean DPF?

Remember guys over 90% of times DPF can be washed up with proper chemicals and pressure washer. Washed one can stay working many thousands km more, even be almost like new one. Check Your fuel system (no leaking injectors), boost pressure (higher means better) and egr (closing properly under acceleration). All these things not working correctly engine produce much more soot than it should be and can clog new/washed DPF very quickly also might be reason to clog recent DPF at first place. Don't buy new one if it's not really necessary, it's waste of money.

Now explain the effects of the exhaust while your vehicle is in regen mode. Especially when your vehicle is dumping extra fuel into the exhaust system to get it hot enough to burn off the exhaust waste in the dpf filter. Drives me insane when they say it is better for the environment.

if you get the DPF turned off via the ecu by a tuner, will you then need to actually remove the dpf from the exhaust?

Dear AutoMate Training, We are producer of car knowledge TV program in Thailand, called “drive it easy”. We would like ask for permission to use some part of your video in our TV program. Thank you in advance. Drive it easy (Thailand) Producer

Question- just bought a diesel VW, and all of this is new to me. I have seen a fuel additive that is supposed to clean the filter. Recommended? Effective?

How does the soot trapped in the filter goes out of the exhaust tail pipe

That was very informative. Can you please let me know if I can rev the engine at higher RPMs in neutral gear?

What happened about the discussion regarding the Differential pressure sensor , you were supposed to talk about later then ? At around 01:08. There is a glow plug fitted somewhere along the exhaust which heats up to help turn the poisonous gases into harmless gases , why has this not been covered ? If the glow plug fails to operate for itself failing or a blown fuse feeding it , that will cause the DPF to soon clog up and go into limp mode and completely clogging the DPF up . I know this as I had a transit that this happened to due to a gross incompetent garage paid fuck loads of money to sort out but took my company for a money pit , to which I ended up resorting to replacing a blown fuse and rengerating it myself on my own laptop and that fixed the glow plug issue , the garage lost the contract, mmm 🤔 I wonder why ? Half baked video not covering the entirety of how DPFs actually work .

Dose it actuality reduce emissions

Is important DPF regeneration because both points so much engine power ho much emissions meet

For regeneration do you have to drive or can you set your idol higher in park?

whats the point in storing it if your just going to release it into the atmosphere anyway?

Remove innards and build a fooler circuit to satisfy ECU.

The DPF traps the soot, then after a time it does a regen and blows all the trapped soot out the tailpipe?

is this vid before dieselgate?

what happens to the burned off soot (ash)? how does it get out?

I dont get it. You collect sooth as it is harmful to atm. Then you burnt it off all at once and release them all. The result of sooth regen isn’t harmful?

Aussie accent thicker than molasses in a blizzard

🙏🙏🙏💝💓💘💝💘👍👍👍👍👍👍

Got rid of mine and bought a petrol engine car !!

if it's clogged, take it of(fairly simple) clean it and put is back. Replacement is not necessary in most cases.

ADBule?

Pressure washer: “Hold my water canon”

Is this the Australian version of John Bishop?

This is wjat varb is adding to desiel cars. I see why they heat up and even burn! Another stupid part to clog the engine and add more pressure..

Just cut the bloody thing out and remap the ecu along with the egr

kaise ho

100% failure rate. Perfect

45 minutes every 2 weeks... seems reasonable, if the car you want to buy, has no petrol version. Just take better care of your diesels, and you won't have to spend thousands on DPF renovation.

put a stick of dynamite in the DPF that should get rid of the soot.

I know my car's in regen cuz I get a headache. Every. Time.

So that’s why people delete their dpf it’s an pain in the a to keep clean so if I get an f250 I think I might do dpf delete and there expensive tho lol welp it’s my dream truck gotta do some to keep it going

Great stuff mate, but now, diesel is dead or dying in the US.

My question is all that aceleración that will happen in a rigen does worth ??

How to clean a Diesel Particulate Filter (DPF)

Here’s my solution, take the thing off as with the the EGR. 👍

dpf they cause major engine failures

Just remove it lol, mine just past the new MOT law 😎

It's hard to justify how burning more fuel to burn unburnt fuel is better for the environment. Isn't the goal to burn less fuel? Lol

they just keeping more costly junk for cars

I got 15 mm over max oil kevel ca 3 liters of petrol mixed with oil and petrol consumption 2-3 liters bigger. I could burn out on highway if no reaction. This solution is completely stupid and unfriendly for driver. I say no for all dpf or gpf so I will never buy any car with this solution.

Simply fix......delete the dpf and reprogram the ecm and enjoy your vehicle

The only fundamental you need to know is they will destroy your engine

keep those HANDS still,, drives me nuts waving your hands about all the time..

So where the hell does that shit go on a regen ....... right out the pipe!!!! so stop messing with shit and let it run the way there made to run

ermmm carbon burns in air at 600 c

Just delete it that’s how I fixed the new problem

That's why diesel engines don't work today

don't work for shit , just destroying the engine

Diesel is for trucks - they can toll more, they are heavier, more expensive and fuel efficient. Putting this into a car is plain stupid. Diesel cars are louder, more expensive and much more problematic.

the whole design and process is crap

DPF are the dumbest, stupidest idea ever thought of....trapping soot only to burn it off later...wheres the sense in that? alls it does is constrict the vechile and not let it perform to its potential

Send the bill to the woke government

Garbage tech.