diesel particle filters

[Dave]

anyone know anything about these .my daughter has a chevy/kia

jeep ,and she has a warning light on the dash regarding the dpf filter but the garage will charge £500 plus to regenerate it ,anyone know a fix as the car is a lease car and its going back on the 12th sept and she will be charged if this is not fixed .

[movistar]

Its probably gonna be a dealer fix by the looks of things mate,i tried to get an airbag light out on a sorento the other day and the snap-on scanner couldn't get in!?

[Chris Wilson]

If it's only just come on, and is not also showing an emgine management warning light, take it for serious thrash with plenty of wide open throttle, heavily loaded running, This may force it to get hot enough to clear the particulate filter. If not you might want to risk adding a bit of Eolys into the fuel tank, which helps regenerate the filter. All at your risk....

[Dave]

thanks chris was just reading about eolys .whats the risk of running it with the light on ,says in the handbook go direct to dealer

so redex would be no good then ??

[Chris Wilson]

No, don't put Redex in it! Eolys is based on pig urine and helps de contaminate the filter. If it gets really clogged engine performance will drop dramatically, but it will almost certainly flag an ecu light first. Try giving it a thrashing....

[Guest Suprastar2009]

These things help to reduce emisions and improve economy supposedly, however they do get really badly clogged up after a period of time, I know this as I learnt it on product training when I worked as Mitsubishi Sales exec and they put them in the new shoguns as Chris says try giving it a good blast to clear out the crud, this usually worked on the mitsis

[mplavery]

These things are a load of CRAP

 

Thay play up with Jags clogging up EGR valves, same with Landrover and Peugeots

 

 

With my Peugeot 307, every time i open the fuel cap it injects fuel cleaner which is ment to stop the dpf clogging up but it does not work. Peugeot do a regen with the car at stand still and starts going through the rev range for certain amount of time, takes about 20 min

 

Jag's, they drive on the motorway for about half hour i think at 4k and that sorts it

 

Ask your main dealer, they might suggest to do something before you take it in.

 

I know my 307 dpf costs about £600 !!!

[Chris Wilson]

What happens if you take the things off? I don't have, or want, anything to do with diesels, save in my truck

[Ian C]

They are just a trap to stop particulates getting out into fresh air during cold start and low load running. When the engine gets hotter later on in the trip, it recycles the filter contents (using magic or something) and burns the bits off, I presume in the exhaust or something. Trouble is, if you drive economically and/or short trips all the time, you'll never get the temperature high enough to burn it off, so it bungs up and then chokes the engine.

 

The upshot being, to me, that removing it will just spit the unburnt stuff out into the atmosphere, rather than storing it up for later Keep it for MOT emissions time and it'll stay squeaky clean for years

 

I'm fairly sure the TDDi engine in my Mondeo is just prior to the foisting of this emissions torpedo upon the engine range. I can tell this as the first start of the day emits a heroic cloud of crap out the exhaust

[RedM]

the first start of the day emits a heroic cloud of crap out the exhaust

 

Same here. It certainly gets some looks and not in a good way.

 

I take my car out for a long run on the motorway every 2-3 months. It certainly runs a lot better after that although, with a Pug 306, a lot better is just a fancy way of saying less sh*t.

[Dave]

thanks for the comments guys will take it for a blast