2010 Accord DPF light

Dcmb1984

Hi.
Ive a 2010 Accord, got the main dealer to do a forced regeneration when my dpf! light came on for the first time. 3 months later I repeated this again when the dpf! appeared again and this lasted for only 3 weeks. I was quoted 1200e from them to replace it so i gave it to my local mechanic to remove it and get it washed (300e for the washing alone).
Just wondering should i get him to replace the oil and oil filter also?

biko

Moved out from old thread

CiniO

Dcmb1984 wrote: »

Just wondering should i get him to replace the oil and oil filter also?

Is oil and filter due changing?
When was it last changed?
What grade of oil was used?

Dcmb1984

CiniO wrote:

Is oil and filter due changing? When was it last changed? What grade of oil was used?

The oil filter is not due a change and yes 0w30 oil was used in its last service. Car is currently at the garage so I cant check the milage but I'd say 6k done approximately since its service.

But I've a new problem. My mechanic removed the dpf and contacted the man that will be cleaning it he says that there is only a 80% chance that this will solve my problem. The filter will be 100% clean on his side but when my mechanic refits it and resets the pdf! light he says on 20 out of 100 Accords it will just reappear whenever it suits itself and the car will re enter limp mode. For no apparent reason. And I'll be up on the down the road to him to plug it in and knock off the light. My mechanic says go a head it but I spoke to the dpf cleaning guy he said he will gladly do it but just to know what may be in front of me. Will I go ahead and get it cleaned or will i pay the 1200e for the main dealer to sort it out. What will I do?
Sorry about long post

Atlantic Dawn

Do you think the issue is occurring because of your driving style not suiting a car with dpf fitted or something else?

bazz26

If the underlying issue is that the DPF is getting blocked because of regular short stop/start driving then you should consider that maybe a diesel car is not suited to your type of driving. Replacing it will result in the same thing happening at some stage again.

If the underlying issue is a fault with the DPF system or the DPF has come to the end of it's useful life then maybe consider having it removed and mapped out of the car's ECU altogether. This will result in the car having no more DPF problems and more poke but downside is that it may have issues in the future with passing the NCT if or when they decide to test DPFs. Removing the DPF permanently would cost about half the cost of a new one.

Audioslaven

I have read about ECU updates to sort some DPF issues on the Honda I-Dtec. Not sure if you got these.In theory you should get the DPF icon without the "!" to alert you. See attached url about the updates http://typeaccord.co.uk/forum/topic/15743-dpf-issue-with-2009-honda-accord-22-dti/

I had DPF issues on my Civic with the same engine. I got it forced regenerated in Honda and asked them to flash the ECU with any updates. They applied one DPF update. I also noticed that both times I got DPF issues, I had bought fuel from a certain garage that I don't normally buy it from. Since then I have done around 15K KM with no issues.
It typically regenerates every 1000km for me.

Dcmb1984

I own the car for 6 years and my driving habits are the exact same. Live in the same house, work in the same place etc. The car now had 214k on the clock.
Now that you mention it I think the Honda service man told me they applied all the latest updates the last time it was in with them. And from what I lve heard the first dpf warning light never comes on with Accords. Its always straight to the second. Software issues that were never fixed my dpf man told me.

Audioslaven

yes I have read a good bit about owners not getting the alert icon to drive @ 60KM until the light goes out.
I have noticed a few things about the regen cycle on my civic - the car needs about 10 minutes to heat up with 6L of oil before the regen will kick off. Also, you don't need to be clipping it for the regeneration to take off. I noticed one day it started at around 1800 revs at around 80km. Now I am mainly on main country roads but I only hit 5 gear once I am hitting above 100kph. I have aligned my driving since I got the DPF issues and watch for the cycle so I am keeping an eye on it. The easy way for me to see if a reg is in motion is to take my foot off the accelerator and the mpg waits at 2/3 bars.

Based on the KMs you have done, maybe you have just reached the end of life of your DPF. Also, some have reported that the DPF sensor could be an issue but Honda should have spotted an issue here the time you brought it in.

Keep us in the loop on this as I would be interested to see how you get on.

Dcmb1984

Just an update.
Collected the car today after my mechanic refitted my washed dpf and did an oil and oil filter change. ( 0w30 of course ). He told me in order to get the dpf! light off after refitting new washed filter he had to get the car to go through a forced regeneration cycle and then the light went out. Car now has way more power than beforehand. Looks like the blocked dpf was choking up the engine. Hopefully my troubles with this are over. Fingers crossed

Armchair Andy

Yeah had mine force regenerated on my 09 Accord and was noticeably quicker to rev out.
He did it parked up to a white Combo it was destroyed afterwards. Some amount of gunk out of it.

Audioslaven

Dcmb1984 wrote: »

Just an update.
Collected the car today after my mechanic refitted my washed dpf and did an oil and oil filter change. ( 0w30 of course ). He told me in order to get the dpf! light off after refitting new washed filter he had to get the car to go through a forced regeneration cycle and then the light went out. Car now has way more power than beforehand. Looks like the blocked dpf was choking up the engine. Hopefully my troubles with this are over. Fingers crossed

ok good to hear. Did he just wash it out with a pressue washer?

CJhaughey

Honda made a software update to the DPF system, the old software used to say DPF. Then DPF! .
The first regen would start at 7.5g of soot, then if the regen was unsuccessful before 12.5g of soot the DPF light would appear. The driver was supposed to pay attention to this and modify the driving style to suit ie, cane it for a good blast on the Motorway to clear it out.
But too may people didn't RTFM and just brought the car back to the dealer as as soon as the DPF light came on.
Consequently Honda updated the software and did away with the 7.5g DPF light but started the Regen at 12.5g and at 25g the DPF! light would appear.
DPF don't last for ever, they are a consumable part same as a clutch.

Dcmb1984

Audioslaven wrote:

ok good to hear. Did he just wash it out with a pressue washer?

The filter was sent to a crownd who specialise in cleaning them. Not sure what there method is but I believe it involves chemicals of some sort. This cleaning was 300e.

KierKenn

Is there any chance of an update from the guy who started this thread? I have the same problem. Wondering what to do. Thinking of going the main dealer replacement route......
thanks for any thoughts you might have

Dcmb1984

KierKenn wrote:

Is there any chance of an update from the guy who started this thread? I have the same problem. Wondering what to do. Thinking of going the main dealer replacement route...... thanks for any thoughts you might have

My own car is flying along since I got it washed and re fitted. No problems. Always fill with diesel at Topaz garages if I can. And change the engine oil every 15k.
If my dpf light came on again what I would do is the following. Remove the catalic converter!!! My mate did this and he has no implications for the NCT. Take out the cat and the car has to be remapped to drive without a cat and that's it. That's my take on the situation anyway.

KierKenn

Thank you for the update. much appreciated.
Honda Accord are a great car. Pity about the DPF!

CJhaughey

Best of luck with the DPF, I really think the delete strategy is the best way forward. I'm in the market for a new Tourer now, my 08 was rear ended and written off.
I like the style of the new Tourer but not the lack of luggage space compared to the old ICTDI.

George Dalton

I definitely wouldn't recommend the delete route. Just get it properly cleaned and it will be as good as a new one from the dealer but at a fraction of the cost.