Vertigo1 said:These DPFs are a ****** nightmare - wonder if anyone does a replacement exhaust that removes it?
I'd heard that you can't use bio-diesel with the DPF which makes me wonder whether this is related as I'm sure some "standard" diesel uses a small percentage of bio-diesel - perhaps this is what's upsetting the DPF and making it regenerate so often. Is there a list anywhere of the various diesel brands and what bio-diesel levels they contain, if any?bowfer said:If you do a search,there are several threads on other forums where they discuss DPF removal,apparently because they want to run bio-diesel and DPF's don't like it ?
They say removal and subsequent 'fooling' of the ECU is easy.
Twizzler said:Removing the dpf is ok I expect until you get to the MOT. I believe the tester has a pass figure for each model of car. Without the dpf your car may never pass it?
Audi have made a major faux pas with this technology, clearly releasing it before it's ready.
h5djr said:But is does work OK on some cars. I wonder why that is. If it was a fundamental problem with the technology you would expect it to be a problem on all engines fitted with the DPF.
marklad2020 said:I've had it for a year now with no DPF problems and no tractoring at all. (it is a 140 however)
Weird place.
Motorsport is banned,yet they had a 125cc world champion two years ago.
with my car i have admit any 'regneration cycle' it is doing it is doing a good job of not letting me know about it because i can never notice any sort of difference in running, with one small exception. Now and again, the tickover revs increase to just below a thousand and when driven in this state the gears change higher up (almost as if sport mode) - its a DSG, then when i get out after that journey i notice the exhaust is red hot and i mean red hot, can smell it and here it ticking as it contracts (is this the regen cycle, only my old 140 used to spuriously increase tickover for no apparent reason??). But thats it - it runs fine, goes just as well, sounds the same - i know this because i have a need to always drive with my drivers window open a bit!!! so i can hear the noises its making. DPF light? didn't even kow it had one! ive never had anything light up (whats it look like?) - 2000+ miles on the clock. Another thing, i do the worst shittiest mileage you can do in a car, this side of roadsweeping! my mpg proves this as i pretty much only average about 31-32mpg day in day out (unless i do a good run)
h5djr said:Mine is the same except thant I cannot say I've noticed any increase in tick-over speed. I've never had the DPF light come on and never been aware of any 'regeneration cycle' taking place. The only thing I have noticed one or twice is the clicking noise from the exhaust when I stop, but I've assume this is quite normal when the exhaust is quite hot after a long run. My car has done 9000 miles and my driving is quite variable. I am now retired so my car does not do the usual journey to and from work each day. Some days it does not go anywhere and some days a few quite short journeys (10-20 miles) and others longer journeys, including some motorway driving. 2000 miles of the total 9000 was across France and Germany to Austria and back where I used many different makes of diesel. My normal is Shell ordinary Diesel and overall, at least according to the DIS, I'm getting around 40-43mpg whereas I got around 47-50mpg from my 140.
As I have not noticed any thing at all perhaps they forgot to fit the DPF system when they made mine!
I must admit if I was getting the same trouble some members are experiencing I would back to see the salesman/service manager/dealer principle and negotiating a deal on a replacement 140!