grrrr... DPF

Mar4ix

So, on my wifes vw polo , 1.6 tdi, (6r)... 2010, DPF sign on dash came over. ..

Has anybody dealt with them ? i know... might longer drive on motorway will help, might not.

How often it goes on ?

found some info, there is instruction how to clear it, seems to be not so easy.

Might will help somebody also.

http://www.myturbodiesel.com/1000q/vw-jetta-tdi-golf-dpf-filter.htm

bazz26

A good long drive down the motorway may help. Other than that it is probably a trip back to the dealer since it is a 2010 I presume it is under warranty. Not sure what they will do with other than try and force a regeneration of the DPF system.

Long term, short trips kill diesels and especially DPFs. The engine has to be operating at a high temperature for a certain length of time for the DPF system does it's job. This is going to be a big problem in years to come with people who bought diesel cars who in reality didn't need one.

vectra

Take it for a good drive and keep it between 2~2.5k revs
There is an additive you can get specifically to help clear the dpf.
You wife is doing too much toddling around.Tell go for a spin once a week and drive it on a bit

Mar4ix

bazz26 wrote: »

A good long drive down the motorway may help. Other than that it is probably a trip back to the dealer since it is a 2010 I presume it is under warranty. Not sure what they will do with other than try and force a regeneration of the DPF system.

Long term, short trips kill diesels and especially DPFs. The engine has to be operating at a high temperature for a certain length of time for the DPF system does it's job. This is going to be a big problem in years to come with people who bought diesel cars who in reality didn't need one.

yes, you're right, i bought this car for my wife, as she had to go to work 5 days a week, 70 - 80 km round trip each day, and never had any problems, and now she is off work, and uses car only for kid drop off to school, or do some shopping, which is 2- 4 miles round trip. Myself working just 5 miles from home , and no need diesel car, my punto fine for that .
Id say DPF removing and ecu tuning for that shall become more popular for these cars in some time... just depends will they pass nct after removing those dpf ? i dont know what sort of emissions nct expect from these cars.

Max Power1

bazz26 wrote: »

A good long drive down the motorway may help. Other than that it is probably a trip back to the dealer since it is a 2010 I presume it is under warranty. Not sure what they will do with other than try and force a regeneration of the DPF system.

Long term, short trips kill diesels and especially DPFs. The engine has to be operating at a high temperature for a certain length of time for the DPF system does it's job. This is going to be a big problem in years to come with people who bought diesel cars who in reality didn't need one.

Amen to that, we will have to have one of the threads of this ilk stickyed for years to come!

colm_mcm

Catalytic convertors were the work of the devil in the early 90s, and that all worked out, hopefully the next generation of dpf's are better.

Darsad

No problem removing the dpf as they do not affect the nct .nct only measures smoke opacity the presencce or lack of a dpf does not affect this reading

EPM

But how long will it be before that changes?

I'd take it for a regular run before removing a DPF.

Gary ITR

EPM wrote: »

But how long will it be before that changes?

I'd take it for a regular run before removing a DPF.

New diesel cars registered in Ireland aren't required to have a DPF so the NCT crowd will find it hard to retrospectively apply this change.

If the DPF light is on chances are the minimum it needs is a forced regen, if it's under warranty though bring it back

-Corkie-

Gary ITR wrote: »

New diesel cars registered in Ireland aren't required to have a DPF so the NCT crowd will find it hard to retrospectively apply this change.

If the DPF light is on chances are the minimum it needs is a forced regen, if it's under warranty though bring it back

The newer vag com can do a forced regeneration of the DPF.

EPM

Gary ITR wrote: »

New diesel cars registered in Ireland aren't required to have a DPF so the NCT crowd will find it hard to retrospectively apply this change.

If the DPF light is on chances are the minimum it needs is a forced regen, if it's under warranty though bring it back

Yes, Ireland don't but essentially you need one to be euro 5 compliant. It's only a matter of time unfortunately until diesel emissions become stricter for the NCT.

Gary ITR

-Corkie- wrote: »

The newer vag com can do a forced regeneration of the DPF.

Yep but I wouldn't reccommend it if you don't know 100% what you're at

Fishtits

Another manufacturer lack of real life design f*ck up.

Are these guys employing architects?

Reminds me of the Pug fuel flap counter mess....

F*ckwits, no other explaination.

EPM

Fishtits wrote: »

Another manufacturer lack of real life design f*ck up.

Are these guys employing architects?

Reminds me of the Pug fuel flap counter mess....

F*ckwits, no other explaination.

It's all about refining it. Unfortunately the general public are the guinea pigs it seems in the case of dpfs.

BostonB

How did this not come up when they tested the cars originally????

bazz26

Fishtits wrote: »

Another manufacturer lack of real life design f*ck up.

Are these guys employing architects?

Reminds me of the Pug fuel flap counter mess....

F*ckwits, no other explaination.

To be fair while DPFs are a flawed technology to get around stricter emmission tests, diesel cars always have been designed to be driven over long distances. People who do not do big mileage or just use a car to go to the shops are buying diesel cars because they are cheaper to tax and more frugal between fills. This is not what they were designed for so these problems were always on the cards.

BostonB

Like taxi's and buses.

Eric Cartman

the problem is , DPF's work perfectly in busses and trucks aswell as vans and cars in countries where they only buy diesels for high mileage. The manufacturers never estimated youd have a rake load of people in Ireland buy diesel cars for tiny mileage and start stop trips

Mar4ix

bazz26 wrote: »

To be fair while DPFs are a flawed technology to get around stricter emmission tests, diesel cars always have been designed to be driven over long distances. People who do not do big mileage or just use a car to go to the shops are buying diesel cars because they are cheaper to tax and more frugal between fills. This is not what they were designed for so these problems were always on the cards.

Well, as i said earlier , my wife were doing fair enough mileage, now we have to go for second service in 18 months. 30 k kms on clocks in one and half year. dpf came up 2 months after she not goin to work.
yesterday drove trough m50 on 4th gear, dpf light gone.

vectra

As I said earlier
Take it for a spin once per week and keep it between 2~2.5k revs. you should be good then

BostonB

Eric Cartman wrote: »

the problem is , DPF's work perfectly in busses and trucks aswell as vans and cars in countries where they only buy diesels for high mileage. The manufacturers never estimated youd have a rake load of people in Ireland buy diesel cars for tiny mileage and start stop trips

But aren't buses and taxi'es a major diesel user? These do a lot of urban start stop trips. Isn't that why they brought some non DPF's diesels back to sell to those markets?

The buses and taxi would get up to temp ok as they'd be running for hours on end, defo buses anyway as they need to be booted up hills etc.

BostonB

Do they not stop at the end of the route, and spend lots of time hardly moving in traffic.

BostonB

BostonB wrote: »

Do they not stop at the end of the route, and spend lots of time hardly moving in traffic.

You generally have one or two buses covering a route in urban areas, as soon as they get to the end of the route they head off on the same route again.

Regarding Taxis, they'd easily get a good run in at least once every few shifts.

shamwari

Darsad wrote: »

No problem removing the dpf as they do not affect the nct .nct only measures smoke opacity the presence or lack of a dpf does not affect this reading

NCT smoke opacity limits are significantly lower for cares that have emissions based road tax from 2008 onwards. Opacity limits are now down to 1.5ppm instead of 2.5 previously. A properly function DPF will make a difference in keeping this figure lower. Removal of a DPF might make it a lot harder for a car to pass the test...;)

Gary ITR wrote: »

New diesel cars registered in Ireland aren't required to have a DPF so the NCT crowd will find it hard to retrospectively apply this change.

I believe they are a necessary evil to meet Euro5 Emission limits.

Fishtits wrote: »

Another manufacturer lack of real life design f*ck up.

Are these guys employing architects?

Reminds me of the Pug fuel flap counter mess....

F*ckwits, no other explaination.

Well, most manufacturers give guidance in the cars handbook about employing a driving style that lends itself to DPF longevity. Part of the problem is many people are simply not aware of this. Is it a case owners are not mechanically literate or don't read their handbooks, or have the manufacturers failed to adequately get the message across?

Eric Cartman wrote: »

the problem is , DPF's work perfectly in busses and trucks aswell as vans and cars in countries where they only buy diesels for high mileage. The manufacturers never estimated youd have a rake load of people in Ireland buy diesel cars for tiny mileage and start stop trips

Most HGV / Commercials and buses also use additives like AdBlue to help main DPF efficiency. Employing such systems on standard motor vehicles would significantly escalate purchase and operating costs, and probably would be hard to justify on smaller engines that pollute far less than their HGV brethern.

vectra wrote: »

As I said earlier
Take it for a spin once per week and keep it between 2~2.5k revs. you should be good then

Yep, basically that's it. Take the car for a good blast periodically and Keep the pipes clean!!

My father (now retired) poots around in a Fiesta TDCi. He does around 50 miles per week of stop / start around town driving. He recently complained that he felt the car had become increasingly sluggish and smokey and wondered if he had an EGR fault. The car was cured by 60-70mph running in third gear for around 10 minutes. The amount of crap and clag that came out of the exhaust had to be seen to be believed. Now, there's more smoke off a cigarette! Had that car been fitted with a DPF, I've no doubt that we'd have had all sorts of dire DPF-related warning lights and stored fault codes being stored long ago.

My wife has a 110bhp C-Max with a DPF. The car has nearly 90K miles on it and is driven about 12 miles per day on the motorway at the speed limit. The DPF is the original one and still works fine. We've never had any issues with it.

You can get away with issue free DPF driving if you are aware of the best ways to avoid problems, i.e. - take the car periodically for a short "spirited" run and boot it hard to clean the pipes out....!

Dilbert75

The old "Italian tune-up"- useful AND fun if done correctly

Mar4ix

searching in internet , vw polo 1.6 tdi with 75 hp (engine code CAYA), has regular problems with all that, but other same size engines - CAYB (90hp) and CAYC (105 hp) haven't any issues , at least i couldn't find any info in internet. I looked on elsa .. (if i am not mistaken), all three engines has absolutely same engine components, injectors, turbo charger, so i presume there is problem only in ecu coding. to keep emissions down , it programmed such way. Does any one know, where is possible recode ecu to CAYC (105hp) specs ? even i am ready officially register this, and pay extra roadtax for such privilege.

vectra

Mar4ix wrote: »

searching in internet , vw polo 1.6 tdi with 75 hp (engine code CAYA), has regular problems with all that, but other same size engines - CAYB (90hp) and CAYC (105 hp) haven't any issues , at least i couldn't find any info in internet. I looked on elsa .. (if i am not mistaken), all three engines has absolutely same engine components, injectors, turbo charger, so i presume there is problem only in ecu coding. to keep emissions down , it programmed such way. Does any one know, where is possible recode ecu to CAYC (105hp) specs ? even i am ready officially register this, and pay extra roadtax for such privilege.

Joe Power is the man to speak to
http://www.chippedire.com/

Mar4ix

vectra wrote: »

Joe Power is the man to speak to
http://www.chippedire.com/

thanks... but he has no my car in list...

vectra

Mar4ix wrote: »

thanks... but he has no my car in list...

Ring him or better still call in to him and have a chat.. If it can be done he can do it..;)

Gary ITR

Mar4ix wrote: »

thanks... but he has no my car in list...

I work with Joe, it can be done BUT it's a 2010 car, bring it back to a dealer first

Mar4ix

Gary ITR wrote: »

I work with Joe, it can be done BUT it's a 2010 car, bring it back to a dealer first

Yes, will give him a call in January , i have to go to do service by now for that polo, will ask dealer, what they think about it.

I was asking one uk company half year ago (they are very reputable and pretty expensive and world wide famous for tuning diesel vehicles, like tractors, trucks etc, and they have my car listed), plug in and play system (some wiring under bonnet, and piggy back to ecu... if i am not mistaken), to increase power to 115 hp, and it was possible, so presume Joe will have to too.


edit: Also i did read in internet , that dealers wont deal with this problem.... probably waiting until warranty will be out .. he he. Wondering, is any software updates for those cars, to fix those problems ?

Gary ITR

Mar4ix wrote: »

Yes, will give him a call in January , i have to go to do service by now for that polo, will ask dealer, what they think about it.

I was asking one uk company half year ago (they are very reputable and pretty expensive and world wide famous for tuning diesel vehicles, like tractors, trucks etc, and they have my car listed), plug in and play system (some wiring under bonnet, and piggy back to ecu... if i am not mistaken), to increase power to 115 hp, and it was possible, so presume Joe will have to too.


edit: Also i did read in internet , that dealers wont deal with this problem.... probably waiting until warranty will be out .. he he. Wondering, is any software updates for those cars, to fix those problems ?

I was asking about this today. Joe was telling me these are a new type of ECU, apparently to do a remap or DPF delete you have to, as you mentioned above, run a piggyback to the ECU. At the moment they are very hit and miss from what we've heard, we haven't actually done one yet. But it should be still inside warranty so bring it to the dealer and let them sort it.

padraig roscommon

Hi guys I have a problem with my 2008 honda accord cdti, the diesel particulate filter light has been on on the dash for 2 weeks now, its been on before but if I drove the car in high revs it went off but now it is on constantly. I don't want to go to honda and pay a fortune to replace the dpf, there is the option to remove the dpf altogether but I feel this is dangerous as it will catch me out in the future through the nct or when I trie to sell the car. However I have came across another option but I cant find much info about it anywhere and was wondering had anyone tried this solution before and is it successful? The guy I spoke to said he is fully guaranteeing his product but was just seeking advice on the issue.
See link

http://greenmoneysavers.eu/welcome.aspx

Thanks for any advice or info recieved Padraig

-Corkie-

padraig roscommon wrote: »

Hi guys I have a problem with my 2008 honda accord cdti, the diesel particulate filter light has been on on the dash for 2 weeks now, its been on before but if I drove the car in high revs it went off but now it is on constantly. I don't want to go to honda and pay a fortune to replace the dpf, there is the option to remove the dpf altogether but I feel this is dangerous as it will catch me out in the future through the nct or when I trie to sell the car. However I have came across another option but I cant find much info about it anywhere and was wondering had anyone tried this solution before and is it successful? The guy I spoke to said he is fully guaranteeing his product but was just seeking advice on the issue.
See link

http://greenmoneysavers.eu/welcome.aspx

Thanks for any advice or info recieved Padraig

Try joe power.

http://www.chippedire.com/

padraig roscommon

thanks corkie i did give him a call but he is more than other quotes i have recieved but what I am really interested in is to see have people used the multi mag and are they a good solution.

EPM

A local independent should be able to do a forced regeneration on the DPF. Might be a good first option.

-Corkie-

padraig roscommon wrote: »

thanks corkie i did give him a call but he is more than other quotes i have recieved but what I am really interested in is to see have people used the multi mag and are they a good solution.

I never heard of them being honest. A lot of lads take the dpf out themselves,cut it open and take the guts out of it and then weld it back together. Then bring it up to Joe because its a days work ripping the dpf out..

-Corkie-

EPM wrote: »

A local independent should be able to do a forced regeneration on the DPF. Might be a good first option.

Good idea actually. Try Flanagans in Tulsk they are very sound to deal with.

vectra

Didn't someone mention an additive to help clear the dpf??
Lucas or some make

alexmcred

This crowd do a dpf cleaner not sure if it's any good but may be worth a look

-Corkie-

alexmcred wrote: »

This crowd do a dpf cleaner not sure if it's any good but may be worth a look

I think someone should start specialising in this sort of stuff as there will be a fortune to be made from it..

2012 Rio

If you are disabling your regen cycle you will have to remove the filter also. If you don't it will eventually just get totally bunged up and affect performance.
So yeah, either cut the guts out and refit the shell or what I plan to do is to fabricate a straight through replacement section of exhaust. See that will not result in the turbulence losses that an empty "can" would produce.

Another advantage is that the DPF can be stored and refitted at intervals temporarily should it become necessary for NCT or if a sale is planned.

If you want that done it would be worth your while having the EGR system disabled and a blanking plate put on the EGR. With both measures combined there will be a noticable improvement in MPG and improve engine longevity and reliability. Plus without all that exhaust soot being recirculated you oil will not go black near as fast. No-brainer to eliminate these items IMO

http://greenmoneysavers.eu/welcome.aspx

As for this? I would be very sceptical of this one. Webpage look less than professional and every graphic is obviously ripped from somewhere else. Pure snake oil that one I'd say.
EDIT: having read the site again, it's pure bollox. Stick a magnet on the manifolds and it'll increase compression-pffffff.

galwaytt

2012 Rio wrote: »

If you want that done it would be worth your while having the EGR system disabled and a blanking plate put on the EGR. With both measures combined there will be a noticable improvement in MPG and improve engine longevity and reliability. Plus without all that exhaust soot being recirculated you oil will not go black near as fast. No-brainer to eliminate these items IMO.

So, say on my Saab 1.9 Tid - just blank off the hose into EGR, from exhaust.... ? And let the valve do it's thing.......but on a 'dummy' input ?

I think the EGR thing is another con job, tbh.

2012 Rio

galwaytt wrote: »

So, say on my Saab 1.9 Tid - just blank off the hose into EGR, from exhaust.... ? And let the valve do it's thing.......but on a 'dummy' input ?

I think the EGR thing is another con job, tbh.

Depends. If your car is old school and just has a vacuum operated EGR valve it would be sufficient to blank off the vacuum hose and maybe put a blanking plate on the manifold.
However on a engine with an ECU controlled EGR valve, if you disconnect the EGR valve plug the ECU will have a fit and throw up error codes and go into limp mode. So in that case you need to "delete" the EGR fuction from the ECU as well as physically banking it off.

Yeah, it's useless bollox in the first place anyway. It's necessary for them and DPFs to be on new vehicles to get around emissions leg though. EGR actually shortens engine life too as you get loads of soot and crap going back intot he engine. Both DPF and EGR also really kill the fuel economy.
Nothing but trouble.
I have ordered a new car in the last few weeks and at the earliest opportunity I will be disabling both of these systems, removing the components and storing them for potential temporary refitting should the NCT be changed to require their presence. Then rip out again after the test!!!:D

bazz26

Before removing any DPF I would get the fault code read, a DPF warning light could mean a few things, it may not need to be removed.

Speedy199

The DPF came on in my brothers car(Octavia RS), he just took it on a motorway and just gave it a good run not rally car but drove it on and it turned off afterwards. Its just if you drive a diesel on low revs all the time like city driving it will get clogged. Every now and then just drive it on on a motorway and all is good

ShadowHearth

I already miss petrol cars . Damn emission system!

padraig roscommon

Just a quick update on the multi mag that I was questioning in an earlier post, I got the multi mag fitted yesterday evening because the dpf fault light that has been on for nearly 3 weeks and hey presto the light disappeared today after driving about 50miles. I couldn't believe it I don't know whether it was a coincidence or not but I am not complaining! if anyone wants to try this out it cost me €235 and the guy came to me to fit it and it took 20 minutes and he also gave me a lifetime waranty and money back guarantee. I was dubious about this sollution as I could find very little evidence on the net as to its use or credability but so far I am very happy and I hope my dpf light stays off for good the guy who fitted it also said my fuel consumption should improve by 10%-15%.
I will keep people updated on how my car is going and whether or not the dpf light re-appears.

TinnieT

Was just wondering how you got on with multi mag? And wot it is? I am having trouble with 08 Honda accord and had I saw this tread would prob never have bought the bloody thing! Would you be able t recommend that guy that did urs?

keithclancy

Blame the EU.