Dismal DPF!

[Grizzy]

Just wondering if anyone has encountered issues with DPF Regen in POLO 66TDI's?

I have had to clean the DPF multiple times (sometimes within a few days), but only have 7k or so on the clock.

The car gets its usual long trip, as requested in the manual. But i seem to be doing this more then i thought i would have to. I was buying Diesel from 7-11 originally, and through some research discovered that i needed to be quite particular with my fuel selection, considering the DPF. I am now fueling up with BP. The problem seems to have improved a tad.

Considering i am new to driving Volkswagens, a Diesel, and only discovered the DPF after my purchase, i am just a little concerned if this is the norm or not?

Cheers

[kaanage]

There's been some discussion about this in the Polo 6R forum but it seems to have been a bigger problem in the UK (and possibly the European mainland) where there have been many complaints about the rough running and poor economy due to the frequent regens. The lack of really low (just off idle) torque in the 6R TDi compared with older diesels seems to me to be an attempt by VW to force drivers to use higher rpm, which should reduce soot levels, in order to protect the DPF.

[Grizzy]

Thanks Kaanage. I will suss out some of those threads and see if i can find some more info.

Just seems bizarre to be doing such regular regens of the DPF when i have barely put any kms on the clock. I feel as though i am following what is suggested in the manual to the tee, but still feel as though something is up. The fact that i have also read people clocking up 60,000 before having to do there first regen is also making me believe something is up.

Asked some questions at my local Dealership, and got the typical "watch where you fuel up", and "watch your driving style". Didn't seem interested at all.

Could it maybe be a dodgy sensor? ECU upgrade required or something?

[Transporter]

Get the DPF pressure sensor checked.

[Grizzy]

Get the DPF pressure sensor checked.

Is that sensor a known trouble maker?

[Transporter]

Yes it is. Especially the earlier one were.

[Grizzy]

Any idea on what they are worth? If in fact i do need a replacement?

Cheers

[THE_EGG]

Just wondering, how bad was your economy? When I had mine I had about 9L/100km on highway and about 11-12L/100km. IMO that's pretty bad for a diesel, considering my Citroen DS3 gets about 8-9L/100km even with its rev-happy 1.6 petrol engine and rather ancient 4-speed slushbox.

I was also advised to get the DPF sensor looked at too.

[Umai Naa!!]

Given the issues they're having, I wouldn't be surprised if there's a campaign in the works to have the ECU re-flashed.

They'd want to do something about it, because a forced regeneration usually takes around an hour to do, out on the open road.

One thing we did notice from customers' comments was that it could be related to drastic changes in driving habbits. Ie, going from regular long distance runs to a few days of stop/start driving. Perhaps the whole shooting match isn't coping?

[jazd]

Any idea on what they are worth? If in fact i do need a replacement?

Cheers

They are around $100 from a dealer. Cheaper online. I'm assuming its the same part on the Polo.

Have a search for it, old part number is 03G 906 051A, new number 076 906 051A.

More info and pictures here - http://www.vwwatercooled.org.au/foru...igh-62596.html

[Grizzy]

Just wondering, how bad was your economy? When I had mine I had about 9L/100km on highway and about 11-12L/100km. IMO that's pretty bad for a diesel, considering my Citroen DS3 gets about 8-9L/100km even with its rev-happy 1.6 petrol engine and rather ancient 4-speed slushbox.

I was also advised to get the DPF sensor looked at too.

My economy is around those figures also, and lets face it, they are not great. The reason i haven't been too concerned with the economy as yet, is im getting more bang for my buck then i was with my previous vehicle (dodgy Nissan). So im saving money, but maybe not as much as i should be?

Did you manage to get your DPF sensor looked at? When you were advised?

[Diesel_vert]

They are around $100 from a dealer. Cheaper online. I'm assuming its the same part on the Polo.

Have a search for it, old part number is 03G 906 051A, new number 076 906 051A.

For a 2011 Polo, part number is 059 906 051 C.

[Grizzy]

Given the issues they're having, I wouldn't be surprised if there's a campaign in the works to have the ECU re-flashed.

They'd want to do something about it, because a forced regeneration usually takes around an hour to do, out on the open road.

One thing we did notice from customers' comments was that it could be related to drastic changes in driving habbits. Ie, going from regular long distance runs to a few days of stop/start driving. Perhaps the whole shooting match isn't coping?

Is an ECU re-flash an upgrade? Or just a reinstall?

Yeah the regen is a pain in the arse. Wasting time and dollars just to burn the soot off.

I think i fall into the bracket of 'stop-start' and 'long distance' in the space of a week........hhhmmmmm

---------- Post added at 10:40 AM ---------- Previous post was at 10:39 AM ----------

They are around $100 from a dealer. Cheaper online. I'm assuming its the same part on the Polo.

Have a search for it, old part number is 03G 906 051A, new number 076 906 051A.

More info and pictures here - http://www.vwwatercooled.org.au/foru...igh-62596.html

Thanks mate. I will look into this!

---------- Post added at 10:41 AM ---------- Previous post was at 10:40 AM ----------

For a 2011 Polo, part number is 059 906 051 C.

Cheers!

[kaanage]

Just wondering, how bad was your economy? When I had mine I had about 9L/100km on highway and about 11-12L/100km. IMO that's pretty bad for a diesel, considering my Citroen DS3 gets about 8-9L/100km even with its rev-happy 1.6 petrol engine and rather ancient 4-speed slushbox.

I was also advised to get the DPF sensor looked at too.

My economy is around those figures also, and lets face it, they are not great. The reason i haven't been too concerned with the economy as yet, is im getting more bang for my buck then i was with my previous vehicle (dodgy Nissan). So im saving money, but maybe not as much as i should be?

That can't be right! Your TDi's are using over DOUBLE what the older 1.9 PD TDi 9N3 Polo uses.
Something is seriously faulty with those CR 1.6 TDi engines (in your cases, at least).

[Grizzy]

I am about 10 minutes away from going for a drive. I think this calls for some research!

Will update you all with some figures when i get back

---------- Post added at 01:56 PM ---------- Previous post was at 12:52 PM ----------

Alright, test results are in.

So from the get go economy was averaging around 10L/100km around town. Then after fiddling around with the Combi Instrument's OK/RESET button (thus resetting the counter), the figures dropped to around 6.5L/100km. Which are figures i expect from the 66TDI. Im guessing highway driving would be about 3/4's worth of that?

Are the figures i was presented with at the start an accumulation of averages from the day i bought the car? So all that was required was to reset the counter to get a true reading of my fuel consumption? Or is my Polo suffering from Polio