DPF cleaning

McOptimist wrote: »

Can anyone recommend a good company in Ireland to get a DPF cleaned? Preferably in the Dublin area.

I did a quick Google and many options pop up. Do they all use the same technique? Are some better than others?

I had mine done in the dpf centre in greenogue ind estate rathcoole, very quick, only a few hours and reasonable price

I've had a fair whack of diesel cars myself and not a single one of them had an issue with a blocked DPF. I've hadn't had to have them cleaned out etc.

I remember my Saab did actually have a small problem with dropping power and engine light which gave off that DPF blocked feeling but it was actually a pressure sensor that just needed replacing and it was fine, no issue.

Does your driving warrent a diesel with a DPF ? What car is it ? On the off chance it could be something else.

I'm sure these DPF cleaning systems do work in some way but it may not be a permanent fix, the DPF should be able to look after itself and if it isn't there's a problem that a cleaning won't fix.

Kopparberg Strawberry and Lime wrote: »

I've had a fair whack of diesel cars myself and not a single one of them had an issue with a blocked DPF. I've hadn't had to have them cleaned out etc.

I remember my Saab did actually have a small problem with dropping power and engine light which gave off that DPF blocked feeling but it was actually a pressure sensor that just needed replacing and it was fine, no issue.

Does your driving warrent a diesel with a DPF ? What car is it ? On the off chance it could be something else.

I'm sure these DPF cleaning systems do work in some way but it may not be a permanent fix, the DPF should be able to look after itself and if it isn't there's a problem that a cleaning won't fix.

Regardless of mileage or style of driving, DPFs will fill eventually fill and need to be either cleaned or replaced. Regeneration will burn off the soot built up via the combustion process but ash cannot be burnt off which is what DPFs typically get blocked with. Soot once burned builds up as ash in the DPF. You can get intermittent engine lights if the regen process doesnt happen as a result of say lots of short journeys that a long blast will cure but ultimately the DPF is a consumable part.

My wife has a 1.6dci qashqai that never had a short journey in its life from new, 80k motorway miles over 2 years from new until my ownership, and it still filled with ash and blocked the DPF by 140k miles.

Cant recommend anywhere but have had mine cleaned for €200 (seems to be the going rate down south) not including removal and reinstall. Make sure to get flow reports before/after cleaning, wont be a problem if its a legit company.

cpoh1 wrote: »

Regardless of mileage or style of driving, DPFs will fill eventually fill and need to be either cleaned or replaced. Regeneration will burn off the soot built up via the combustion process but ash cannot be burnt off which is what DPFs typically get blocked with. Soot once burned builds up as ash in the DPF. You can get intermittent engine lights if the regen process doesnt happen as a result of say lots of short journeys that a long blast will cure but ultimately the DPF is a consumable part.

My wife has a 1.6dci qashqai that never had a short journey in its life from new, 80k motorway miles over 2 years from new until my ownership, and it still filled with ash and blocked the DPF by 140k miles.

Cant recommend anywhere but have had mine cleaned for €200 (seems to be the going rate down south) not including removal and reinstall. Make sure to get flow reports before/after cleaning, wont be a problem if its a legit company.

Ash is a product of burning engine oil. That's why the ACEA Cx oils were introduced - to significantly reduce amount of ash in exhaust. If one is using correct oil, the ash will not be an issue.

Hi,

I used these guys a few years ago:

https://thedpfcentre.ie/

I found them pretty good/friendly/efficient.

I had a faulty glow plug module on my BMW which meant that the car stopped doing DPF regens so got completely clogged up.

Cheers,

~LTD

Whocare wrote: »

Would you get any engine light on because of glow plug not working? As warning

Engine management light usually, then it an either be a plug or relay.

Kopparberg Strawberry and Lime wrote: »

Glow plugs don't always bring on an engine light.

Unless they were mostly all gone and the car struggled to start then maybe but I wouldn't use that as a sign

In my 520d 1 plug acting faulty would set off the engine management light to be fair, Had the computer so always knew the cause.

Everyone should really get an OBD 2 or applicable for their car, makes life more straightforward

Kopparberg Strawberry and Lime wrote: »

I had a Volvo D5 and the engine light never came on but when I plugged in a generic obd 2, it wouldn't show anything, but when I used the Volvo laptop on it only then it would show 1 or 2 glow plugs not working. 1 was the relay and the other was the glow plug itself. But no eml light for them

So again, I wouldn't depend on the engine light to tell if or not a glow plug is gone

Thats fair, generic OBD didn't work on BMW - more specific model required.

Was only 40 quid. They will never be as good as the proper software.

Seems to depend on the car i have a 2012 avensis with 193000km on it never had a dpf issue.

tcawley29 wrote: »

No it's just usually people buying a diesel who don't need a diesel.

I think Covid restrictions are having an impact, a lot of diesel cars are not even getting occasional long trips.