[wannabe]

Got above message which stayed on with warning beep. When switching engine off and re-starting, it would come on again after about 20km of driving and the process would repeat itself. Dealer phoned and said it was due to low "cleaning fluid" level. Apparently this keeps the particulate filter clean and is replaced at 90 000km service. As my Treg is on 88 000km, I told them to go ahead with 90 000km service. Of note, the fluid alone is about $700 and will have to come from Eastern States . Has anyone else had this issue?

 

[wannabe]

I forgot to mention in regards above thread: this happened about 500km after the engine was dropped to replace the exhaust sensor. Could there be any link between the two?

 

[SamTrooper]

ok your v10 doesn't have any cleaning fluid in the exhaust, only the v6tdi's have adblue which cleans the exhaust gases, and not the filter. You should definitely get a second opinion, it's possibly linked to whatever they did with your exhaust sensor.

 

[evaddirb]

wannabe, I am not convinced MY08 V10's have a particulate filter?
I would really make a point of getting the dealer to show you them (If they are in fact there, I believe there should be two, one on each side.)
However, I bet you a cows cock you won't find one!

 

[wannabe]

So what do I do - ask for VAGCOM printout? Tell them to keep their hands off and take for "private" VAGCOM, then to another dealer? Any advice/help will be much appreciated.
PS: I like the "cows cock" part!

 

[Singh]

you surely have a particulate filter Werner.
get a second opinion or get hold of vagcom, this link will help
VW Touareg DPF and Audi Q7 DPF filter FAQ and Adblue fluid FAQ

 

[wannabe]

Spoke to service department again today. I asked why they have to get cleaning fuid from over East if they need it as a regular 90k service job. Answer was that it's only the V10's that have the cleaning fluid for the particulate filter. I decided to let them go ahead and do the job (as well as 90k service). Driving a loan Jetta now and really miss the Treg! Singh, as you had told me, the computers tell you something is amiss - problem is only that it makes one think it is a huge issue while, in actuall fact, it may only be a minor issue. If the warning would only be more specific, it would help to keep the heart rate at normal levels!
Very informative link, Singh! And, do we have ultra low sulphur diesel in Oz? I remember seeing a thread about this and will search for it again.

 

[evaddirb]

If the warning would only be more specific, it would help to keep the heart rate at normal levels!

That is why I bought a VAGCOM ! :wink:

 

[rineman1]

I just had this same warning pop up today as well. The engine fault- service now flashed along with an audible tone and the glow plug light was flashing as well. I restarted the vehicle and no light, but have not driven it to see if the light will reappear. Taking it to the dealer first thing on Monday for a check-up. Any ideas what it could be? I have no VAGCOM. I'm still under warranty.

 

[wannabe]

Let us know what they say.

 

[rineman1]

I just had this same warning pop up today as well. The engine fault- service now flashed along with an audible tone and the glow plug light was flashing as well. I restarted the vehicle and no light, but have not driven it to see if the light will reappear. Taking it to the dealer first thing on Monday for a check-up. Any ideas what it could be? I have no VAGCOM. I'm still under warranty.

Well it looks like it's an oil pressure sensor that's bad. It's not sending or receiving a signal. They show two in stock located off site. They're putting me in a rental for the rest of today and maybe tomorrow.

 

[rineman1]

Let us know what they say.

I got my Touareg back today. They replaced the oil pressure switch. All covered under warranty. I have 23,700 miles.

 

[wannabe]

So they put in the "additive" -all $573 worth of it (for 4 "units" as per invoice- don't know how many ml = 1 unit). Anyway, Evaddirb put his VAGCOM on the vehicle the weekend - amasing: it showed the exact km, vehicle speed, RPM and date and time when the warning first appeared! Woudn't like "some" people checking max speed the vehicle has done

 

[noobytoogy]

In very serious/fatal accidents, UK police now interrogate car's systems as a matter of course.

 

[SamTrooper]

So they put in the "additive" -all $573 worth of it (for 4 "units" as per invoice- don't know how many ml = 1 unit). Anyway, Evaddirb put his VAGCOM on the vehicle the weekend - amasing: it showed the exact km, vehicle speed, RPM and date and time when the warning first appeared! Woudn't like "some" people checking max speed the vehicle has done

weird so your saying they cleaned your DPF(diesel particulate filter) with a cleaning fluid? Interesting to say the least! I've heard about taking it apart to clean it but never with a fluid. Let us know how it works for ya.

 

[wannabe]

No, they did not clean the DPF with the cleaning fluid; apparently the V10 has this cleaning fluid in the system that "does it's job" in regards the "emmisions-issue". I am really very open to hear the truth from the experts on this forum.

 

[SamTrooper]

I can tell you 100% your v10 does not have the DEF (diesel exhaust fluid) or adblue, The only engine that has this is the v6tdi, and possibly the v8. You do have a DPF, or diesel particulate filter, it may be possible that they cleaned that with some sort of fluid. Check your spare tire area, if there's no tank in there to refill your DEF then you've been ripped.

 

[evaddirb]

wannabe,
Below is an extract from a VW website

Diesel Particulate Filter

A diesel particulate filter is a system for separating particulate matter from the exhaust gases produced by diesel engines. Two different systems are in use at Volkswagen depending on the model: Diesel particulate filters without an additive are fitted on models where the particulate filter is positioned near to the engine. On models where such a positioning of the particulate filter is not possible, systems with an additive are used. The filter with a catalytic coating works without the need for an additive by using a filter coating containing precious metals which fulfils a dual function. Passive regeneration slowly and gently converts the particulate matter contained in the catalytic converter into CO2. This process takes place at temperatures between 350 and 500 °C and can run continuously without the need for intervention, particularly in cars which are driven mostly on the motorway. Only when vehicles are operated for prolonged periods at low engine loads - such as is the case when driving in city traffic - does additional filter regeneration have to be carried out by actively raising the exhaust temperature to around 600 °C every 1,000 to 1,200 kilometres. At this temperature, the particulate matter trapped in the filter burns off. On additive-based systems, the additive serves to reduce the particulate ignition temperature to around 500 °C. Regeneration needs to be performed every 500 - 700 km, depending on the driving style. The additive is automatically flushed into the fuel tank every time the driver refuels, with one litre of additive lasting for approx. 2,800 litres of fuel.

 

[SamTrooper]

Does it say what additive they're talking about??? It can't be ADBLUE because the (adblue)additive isn't flushed into the tank it's sprayed directly into the exhaust stream downstream of the oxidysing catalytic converter, which produces amonia, then in the catalytic converter the amonia breaks down the Nox into nitrogen and water(vapor)

 

[V10]

Wannabe - you should really call VW and discuss this with them as other posters are stating it sounds like they are speaking of a adblue additive for the adblue TDI's which your V10 was not designed with. Ask them to see the bottles and where they added them. Calling VW will clarify and allow you move forward accordingly. You can even read/print the post above speaking of the types of systems showing you're V10 falls in the no-additive category.

Many of us own V10 and have no such additives and have the DPF system that was used in this vintage system.