i BROUGHT A NEW yETI ON 1ST DECEMBER LAST YEAR

Congratulations; a wise decision. Why do you need help?

Soory about the earlier post don't know what happened. However to start again!

Brought a Yeti 2.0 TDI 140 ps CR SE Plus, on 1st December 2011. I have in that time done 6000 miles, but have had no one of prblems with the DPF. It has come on 17 times in the first 6000 miles, and gone into LIMP mode 4 times. It has been back to 3 skoda garages, and Skoda Techinical have had it for a 2 week period in February, and they have got it again, and have had it there for 3 weeks. My driving style is that I do approx 100 miles per day, but 90 of those miles are Motorway driving, (Sheffield/Leeds/Sheffield) My driving proofile says this should not happen. Skoda Techinical cannot replicate the fault, and are now saying that I am driving to fast and not allowing the engine to cool! What do they mean by to fast as I am going up and down the motorway in peak times, I tend not to get any rwal fast periods of driving for a prolonged time, I possibly get it up to 80 mph, but this tends to be for perhaps the last 15 miles or so when the road is clear. also the last tow times it came on I had done A road driving a journey of around 90 miles, with an average spped of 45/50 mph, which seems to me to go against what they are saying? Any ideas what is happening. and what I can do.

Congratulations; a wise decision. Why do you need help?

Dosn't seem a wise decision at the moment though!

I think Skoda technical are talking a load of tosh.

Driving fast is what helps to keep your DPF clear.

You have a problem.Similar to TPs I think.

Hi LS,

:'( to hear your having issues with the DPF. Also had DPF concerns but of a different nature, in that active regeneration cycles started occurring more and more frequently (from about last November) until they were almost if not daily. However I had no warning lights or restrictions in engine performance.

Result regular trips to the dealer and numerous conversations and e-mails to Skoda UK. Kept telling me no fault found, however mysteriously following the last visit in February it's gone back to how it used to be when I first got her; once every few weeks, despite the dealer stating they only ran another diagnostic test :wonder:

Did come across information suggesting some owners of VW cars had issues with moisture getting in the differential pressure sensor and causing false readings. Also discovered that not all VAG DPF's are programmed to operate in the same way, believe it depends on the engine there attached to and when they were manufactured.

Oh Mark Fox at SUK delt with my case if that's of help and I hope they find the cause soon but to me it sounds like a duff sensor or a internal fault with the DPF construction.

TP

Your problem and the problem TP described now seems like a sensor fault. See my post above.

What puzzles me is that the Skoda techs did not identify the problem. There did not seem any difficulty with ID'ing the culprit on my car this morning, and I know it was hooked up to the main Skoda diagnostics computer, as it identified an "action", meaning that the Skoda roundel on the boot lid needed replacing - apparently from many complaints of the white splotches from othes. Mine are just perfect, but Skoda DK insist on replacing them.

Before I retired, I have worked quite a bit with catalysts and with the type of substrate used in the DPF. In the type of driving you and TP describe, the likelyhood of a catalyst failure and a plugged catalyst carrier is very small. Pressure sensors are much more prone to failure - think cheap and operating in a difficult environment under the car, getting wet and hot intermittantly.

Similarly, a software glitch also seems unlikely: It would have been discovered and fixed at some time, and not apply to just a few vehicles.