I see today in Autocar their long term Superb II (170 TDI) has an emissions warning coming up after 6000 miles. Sounds like the well known DPF problem.

It's about time Skoda fixed this problem rather than telling owners to go out & thrash their cars up the motorway as a DIY fix.

Anyone else had this happen yet on their new Superb?

2slo

My boss has a Jaguar XF diesel. He has exactly the same problem. The answer at the dealer is to go out to the motorway and "burn" the particles. It's the same in all the manufacturers, because it's a problem of the DPF itself: it works that way, no other.

My boss has a Jaguar XF diesel. He has exactly the same problem. The answer at the dealer is to go out to the motorway and "burn" the particles. It's the same in all the manufacturers, because it's a problem of the DPF itself: it works that way, no other.

Not all manufacturers, as Toyota have put an injector in the DPF to burn off the particles, meaning there is no need to go for a ride up the motorway.

They've done 6,000 miles in the new Superb already?

Not all manufacturers, as Toyota have put an injector in the DPF to burn off the particles, meaning there is no need to go for a ride up the motorway.

I never understood why they don't just put a glowplug or heater element into the DPF such that the temperature can be raised when the car is running to clear the thing off.

What does the Toyota injector inject? Sounds like the additive in the MK I Superb 2.0 8v.

Another thing is why not just have a disposable filter that is replaced every 10k miles. That way at a service it can just be pulled out and a replaced, then the waste product could be properly disposed of. Got to be better for the local air quality than burning it off.

Edited 11 December, 200817 yr by cheezemonkhai

Had my dpf replaced at 23,000 miles, the joys of 95% urban motoring! Glad I didn't pay the bill, cost Kia UK £2k!

Not all manufacturers, as Toyota have put an injector in the DPF to burn off the particles, meaning there is no need to go for a ride up the motorway.

That's the theory. In the real world, they need it, we have two Avensis on my company and it's a source of problems (in fact, it's the unique source of problems of those cars, appart from this they are pretty reliable ).

My boss has recently bought a Jaguar XF 2.7 diesel (same engine used by Ford, Jaguar, Peugeot, Citroen) and it has a reservoir with an special additive for burning the particles that accumulate at the DPF. And after 5.000 km of mainly motorway... a pretty message was displayed "Please clean DPF". My boss was told to go out to the motorway in order to clean it :eek:

And also every 60.000 km the reservoir needs to be filled up, at the low cost of 600 euros :eek:, but that's another story.

As the owner of a Mk 1 Superb diesel without a DPF, I would take very great exception to being "told" by the car how I should drive it if the DPF gets blocked. It almost certainly wouldn't suit me to take it for a run down a motorway if I'm busy or stuck in traffic.

I think I'll take good care of my old car - it doesn't mind being stuck in traffic one bit.

rotodiesel.

or simply buy a petrol and not have to worry about the DPF !!! LOL

When the DPF is 'regenerating' or whatever it is called, is that what makes the car tick over at 1000 rpm instead of around 900 normally?

Mine has done this a few times (Mine is an '08 2.0 TDi old shaper Superb), I had one before with the same engine, and it used to do it too. Just to be safe I do keep the revs over 2500rpm for at least 10 minutes every three days or so during driving, to 'burn' off the particles.

My question is: Why when this is supposed to help the environment, do you have to drive it less efficiently, thus using more fuel? Therefore making it a pointless thing to have?

I see today in Autocar their long term Superb II (170 TDI) has an emissions warning coming up after 6000 miles. Sounds like the well known DPF problem.

2slo

Any update from Autocar if this was resolved? (I don't read the mag)?

They've done 6,000 miles in the new Superb already?

Which shows how crap these DPF's are. If it puts the light on in a car doing that mileage (and presmably getting a few thrashings along the way), its going to be on the time for most average drivers.............

doh!

My Octy II 1.9Tdi PD is fitted with a DPF, however, in 110,000 miles I've not had any DPF problems. Of course, having a daily mileage of around 100 miles does help!

Well I think I'd better order the 3.6 DSG Estate then when it comes out!

veloplus - Your car isn't fitted with a DPF.

Would sitting in the car and holding the rev's at say 3000rpm for X-amount of time do the same job as a run on main road :confused:

Would sitting in the car and holding the rev's at say 3000rpm for X-amount of time do the same job as a run on main road :confused:

I was once told by a VW mechanic that the revs need to be over 2500 rpm for at least 10 minutes in order for the exhaust to regenerate (if the revs have increased due to the exhaust doing its thing).

The other night my revs increased to 1000 on tickover (was in traffic) so when I got to my destination, I revved it at around 2500 rpm, then I heard the exhaust make a whine noise, and then the revs returned to normal.

Thankfully I have not had the DPF light come on yet, but when the car does this exhaust regeneration thing, I rev it to get it over with asap.

veloplus - Your car isn't fitted with a DPF.

Are you sure? I thought it was fitted with a DPF as inside the fuel filler cap is a sticker stating "No Biodiesel". I know that biodiesel is not permitted in cars fitted with a DPF.

I see this post on a Volvo forum..........don't know if it's right but surprising if it is! Thought you all might give your thoughts.

The DPF regenerates about every 300-500 miles and takes about 25 miles of driving to complete the process. Whilst doing this it burns extra fuel (to clear out the soot), some say around 75-100% extra fuel is burnt during this process. That means that if crusing along doing 40mpg and the DPF re-generation kicks in, for the next 25 miles you'll be getting only 20mpg!!!