Dpf must read

[Hostile1 Member Find all posts View Profile Close Hostile1]

I know there are a heap of DPF threads on here already however I believe this article should be its own thread.

https://www.abc.net.au/news/2019-08-...80?pfmredir=sm

[nudgebar Member Find all posts View Profile Close nudgebar]

a good read , but when has a government agency ever stuck up for a consumer ? big biz wins out every time

[angyp Lurker Find all posts View Profile Close angyp]

That's an interesting article it also states they were meant to be a fitting switch (assume manual burn button) to all vehicle built between Oct 2015 to Jun 2018. However, when I got the firmware upgrade under recall earlier this year they told me I couldn't have the button installed. I want the button installed so I can at least have some more control over when it burns. Generally, it starts burning off when I am just about home and I spend the next 20 min driving around wasting fuel and time.

What's the best way to maybe get the switch installed at the next service?

[jasaly01 Lurker Find all posts View Profile Close jasaly01]

I have had the manual re-generation button fitted, you cant just do a manual burn when ever you like though, the DPF has to be 70% blocked for you to be able to do the burn so not 100% sure what it is therefore really. Just freeing up Toyota service centres from having cars in there doing it.

[angyp Lurker Find all posts View Profile Close angyp]

Just means if I am about to head home and it's at say +80% I can push the button so it's done by the time I get home. Instead of just driving around the neighbourhood wasting time and fuel when it decides to start right when I get home.

[Prone Member Find all posts View Profile Close Prone]

There is no need to drive around the neighbourhood wasting time and fuel, just stop and park. It will resume next time you start up and the engine gets up to temperature. It will do this over multiple stop start cycles until it finishes.

Cheers
Prone

[vxowner18 Junior Member Find all posts View Profile Close vxowner18]

Just means if I am about to head home and it's at say +80% I can push the button so it's done by the time I get home. Instead of just driving around the neighbourhood wasting time and fuel when it decides to start right when I get home.

The button was meant to be used to manually active the re-generation process while DPF% is in between 28% ~ 100%, when the car was parked in a safe area (away from fire hazard).

After the "SUCCESSFUL" installation of Custom Mode (My dealer said YES YES YES), I did get notification message on dash, saying DPF regeneration is in progress. but when I tried to push the button (engine was in normal working temperature, gear in P, handbrake on, and DPF% was 60% 75%, 85% full), no luck, nothing actually happened.

So the button is just a toy on dash. It may just save me a visit to Toyota when I have DPF warning sign ON (DPF% is 150% and over), then I may burn off soot by pressing the button myself, rather than the dealer via tech steam.

It's a bonus to save Toyota heaps, however, not much for me, and the button has taken the only available rectangle switch blank on my dash. I'm now thinking to remove or relocate this useless thing, I could still active the regeneration via Torque Pro.

Cheers,

[Hostile1 Member Find all posts View Profile Close Hostile1]

The button was meant to be used to manually active the re-generation process while DPF% is in between 28% ~ 100%, when the car is parked in a safe area (away from fire hazard).

After the "SUCCESS" installation of Custom Mode (My dealer said YES YES YES), I've tried to push the button on my dash when engine was in normal working temperature, gear in P, handbrake on and DPF% was 60% 75%, 85% full, no luck, nothing actually happened.

So the button is just a toy on dash. It just save you a visit to Toyota Dealer when you have DPF warning sign ON (DPF% is 150% and over), then you may burn off soot by pressing the button yourself, rather than your dealer via tech steam.

It's a bonus to save Toyota heaps, however, not much for me, and the button has taken the only available rectangle switch blank on my dash. I'm now thinking to remove or relocate this useless thing, I could still active the regeneration via Torque Pro.

I agree with this statement. I have a family member that works in Toyota service department and they have been told not to talk about the DPF, and the install of the "self burn DPF button" was because Toyota had to "try something." In the grand scheme of things this DPF business seems to be in its infancy and may not be right any time soon. I personally have had no issues with mine whatsoever. Get the button, don't get the button either way if you motor shits itself within warranty I think there is enough of a case for Toyota to have to fix/replace, simple as that.

[JohnLynn Senior Member Find all posts View Profile Close JohnLynn]

I think Toyota have been relying for sales on their previously very good reputation for far too long. I also feel that customers are unwilling to criticise their gleaming brand new purchase for fear of appearing to have made a mistake when spending their hard earned money. This applies not only to the DPF but also to the "infotainment" system with its out of date maps and lack of facilities found on much cheaper vehicles.
My Prado had the DPF update and needs to go back again as no lights or any indication of a burn happening. Like others I would be far more concerned about this if I didn't have Torque Pro on the head unit to monitor the DPF and manually regenerate if I ever needed to.
I think what annoys me most about the whole situation is the secrecy from Toyota, not just to customers but to their own staff who generally seem to know less about the problem than many people posting on this forum. If they encounter a vehicle with issues they send a "screenshot" as they call it from techstream to Toyota who then tell them what to do. This must be frustrating to say the least for any self respecting mechanic who wants to be able to diagnose themselves.
It really is about time this problem was sorted out, the odd thing is that this issue seems almost unheard of in Europe (I am in the UK at present) so what is the difference? other than the engine here has to conform to Euro 6 rather than 5 as in Australia. You would think this would complicate the problem more?

[404pug Avid PP Poster! Find all posts View Profile Close 404pug]

As I have written before,I too think that the button is just palliative to shut owners up. I have one and custom mode installed but the button does nothing. Maybe it will if the DPF gets to 180% but I hope not to find that out as my dpf works ok [ touch wood] BUT it does nothing before that. It appears that a manual burn cannot be activated as the paperwork says beyond 26% full. As I have said elsewhere my dealer has demonstrated that it all works as it should when connected to techstream. Yes I now get the flashing light when a burn takes place but still have no manual control over a burn in ,say, thick grass areas. The class action underway will be interesting to watch especially if it leads a permanent long term fix. Has anyone actually got a switch that initiates a manual burn beyond 26% full?

[AntVDM Junior Member Find all posts View Profile Close AntVDM]

The button was meant to be used to manually active the re-generation process while DPF% is in between 28% ~ 100%, when the car was parked in a safe area (away from fire hazard).

After the "SUCCESSFUL" installation of Custom Mode (My dealer said YES YES YES), I did get notification message on dash, saying DPF regeneration is in progress. but when I tried to push the button (engine was in normal working temperature, gear in P, handbrake on, and DPF% was 60% 75%, 85% full), no luck, nothing actually happened.

Cheers,

I Don't know if manually pressing the button is any different, but in an auto burn it will stop after 5 minutes if you are parked and not moving.
I'm sure I read that somewhere... perhaps to ensure you don't kill yourself in your garage or so...

I'm guessing that the same logic applies to the manual button. If parked it won't work, or will shut off after the same 5 minutes as when it's on AUTO.

Ant

[404pug Avid PP Poster! Find all posts View Profile Close 404pug]

NO. The written stuff says to park in a safe place while it does a manual burn [ except that the button does sfa].

[AntVDM Junior Member Find all posts View Profile Close AntVDM]

NO. The written stuff says to park in a safe place while it does a manual burn [ except that the button does sfa].

Right you are!
Checked out the new leaflet on "toyotamanuals" and sure enough, in black and white: place vehicle in park....

I don't have a button installed, but from the sound of it, I'm not missing much!!

[angyp Lurker Find all posts View Profile Close angyp]

There is no need to drive around the neighbourhood wasting time and fuel, just stop and park. It will resume next time you start up and the engine gets up to temperature. It will do this over multiple stop start cycles until it finishes.

Cheers
Prone

I assume you have no problems operating your vehicle in this manner? I was only driving around to let the DPF finish it's burn off because I didn't want Toyota blaming me when the DPF blocks up saying you didn't let the burn complete.

[Prone Member Find all posts View Profile Close Prone]

Seems OK so far. My 2018 2.8 VX is 12 months old and just on 23,000km. Is a MY18 update with the DPF switch as standard fitment. Never had the DPF light come on or caused a burn to start using the switch.

I have noticed this behaviour many times. I monitor with a scangauge. Burn normally starts at 50% on scangauge. Currently in the middle of a burn which started last week. Have had a few short trips locally, now down to 29% on scangauge. If trip is too short to get engine up to temperature the % may even rise 1 or 2% during the burn cycle!. Ultimately it will go down to 2 or 3%. I know I will do a longer trip to town, Hobart, occasionally and it will complete the burn then if it hasn't around the local suburb.

There is another effect I have noticed, if on a long downhill run during a burn the DPF temp will drop from the burn temp of 500+C to 300C or even less, sometimes down to 180C at bottom of southern outlet into Hobart. This is a 1 or 2km run with no throttle input, sometimes in 3rd gear (S3) to hold speed to 80kph or so. The DPF % will then remain constant until there is enough load on the engine to get the exhaust temp back up to 500+. Unfortunately this will be on the other side of the city, the trip though Hobart down Macquarie St is also downhill at a 50kph speed limit for another kilometre or so. I reason this is due to large volumes of air going through the engine and exhaust without enough fuel to create heat. A similar effect happens when towing the camper trailer at highway speeds, dropping speed from 100kph to 90kph seems to cause an increase in DPF temp during a burn. Not so pronounced when not towing.

Cheers
Prone