How many kilometres has your DPF fitted CRD done?

[Ryeman]

Just want to know if anyone has accrued very high ks and financially survived the experience.
I'd like to think plenty have but maybe it's a bit early but seeing I have one I'm trying to overcome my 'tech' scepticism when it comes to the bottom line.
A million was practically normal for the old bangers but that was pre the emissions centred 'disposable' cars of today.
Please prove me wrong!

[Greg Roles]

20,000k.

Seriously the addition of a DPF to PD cars was an afterthought, the cam driving the injectors, and the resulting injection cycle was never designed for a DPF. The fact some guys on here have gotten 200k out of their PD DPF is amazing. I sold my GT TDI at 209k, and it still felt and drove like new, I really miss it actually, the Yeti is so grandpa in comparison.

Common rail is perfect for the DPF. The control of the injection is considerably more customizable, and the soot produced a lot less. Add to that second and now third generation DPFs, and even with tightening emission laws, I'd expect the MK6 CR cars, and their DPFs to last longer overall and give much less trouble. To be honest I'm more worried about the high pressure fuel pump, given the tiny tolerances, the stupid high pressures, and the trouble various brands have been having with them.

I reckon good fuel, proper maintainence especially of filters, and keeping the internal oil crud buildup minimised is key.

Tell me an old dinosaur diesel that had 350nm at 2.0 litres? It's little wonder those old cars go so many miles that under stressed.

[Ryeman]

Well I am the grandpa in my Yeti and your right, the replacement costs of these exotic components makes it a worry that you could quickly have 'negative equity' in your beloved.
I've got <30K on mine and whilst still under warranty not too worried but it's tempting to think with, say, 6 months left, I might think of selling and that simply makes me wonder, if I'm thinking like that, why have a diesel at all particularly since the petrol fuelled Pug 'diesel' is just so low down grunty, clean and economical.

[Greg Roles]

Sorry Ryeman, the grandpa dig wasn't aimed at you, I know you got some miles on you ( like me these days ) more that in stock form the 103 yeti is a little soft. I agree the differences between petrol and diesel are rapidly decreasing with technology, and there's less emission control gadgets on the petrols. Thing is load up the pug and you're going to pay at the bowser, I can tow a 400kg trailer loaded in the yeti and use one more litre per hundred kms. Driven in anger petrol cars always use more, a diesel never seems to change.

[Amalgam]

Hi,

At your next service, before the expiration of your warranty, i would an "end of warranty inspection" carried out, preferably by an independent VW technician. At the same time I would ask for an ash reading from the DPF. That should give you an idea of your ash load and an estimated lifespan of the DPF.

Don't be confused by soot and ash.

Soot is produced by the combustion of the diesel ( black smoke you see from some trucks ) which is trapped in the DPF and burnt off by an active regeneration cycle or passively during a 15+ min run at highway speeds which naturally increase exhaust temps. DPF cleaning additives ( Liquid Molly and Penrite ) with cerium decrease the temp at which the soot burns off occurs.

Ash is produced by the burning of engine oil that naturally gets past the piston rings. This cannot be burnt off from the DPF, but can be back washed out or the DPF replaced. Using only VW approved LOW SAPS oils will reduce ash accumulation. Also keep an eye on oil consumption.

As stated by Greg, in a well maintained diesel engine, the DPF should last 150,000+ km.

If you are a low milage, short distance driver, a petrol car may be more appropriate for you.

Excuse me if I am preaching to the converted, but many diesel owners I know, don't understand the difference between soot and ash.

[Ryeman]

The Yeti has a towbar for the light 6x4 and living in the country the min dist we travel would be 30 km.
The Pug is just a small triple but with a big heart and it's lifetime consumption has been 5L/100km.
The concerns revolve around the techy bits like the injectors pump EGR and DPF, then you add DSG and Haldex and start hankering for a Morris Morris or an EH.

[Ryeman]

Sorry Ryeman, the grandpa dig wasn't aimed at you, I know you got some miles on you ( like me these days ) more that in stock form the 103 yeti is a little soft. I agree the differences between petrol and diesel are rapidly decreasing with technology, and there's less emission control gadgets on the petrols. Thing is load up the pug and you're going to pay at the bowser, I can tow a 400kg trailer loaded in the yeti and use one more litre per hundred kms. Driven in anger petrol cars always use more, a diesel never seems to change.

I didn't take it that way Greg.
My Yeti has a 'box' on it, easily disconnected, which makes it much more spritely and economy a bit better also especially with diesel here ~10c/L less than 91....strange times.
I get the impression there are v few diesel followers/fans on this forum which is a pity.

[Lindsay]

My '08 125kw Passat is just about to clock over to 230k. I bought it with 100k on the clock in 2011 so both the first owner and I drive above average distances.

In the time I have owned it I can only say I have noticed a DPF regeneration take place once, about 2 weeks ago. It was revving a little higher than necessary which caught my attention. As I pulled away from a set of traffic lights I notice a huge plume of ash-like smoke. A friend was travelling behind me and he also noticed the ash. The car drove like new again after this.

I'm sure I'm not the only one with over 200k on the clock with the original DPF...


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[Ryeman]

Lindsay, is that a PD or CR engine?

[Lindsay]

Lindsay, is that a PD or CR engine?

PD.

Injectors failed at 115k (replaced by VW) and have had to replace one glow plug and a crank angle sensor. Only "mechanical" issues to date...


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