Interesting thread this. However I find some of the reports of oil levels rising, contaminated with diesel amazing, dont disbelieve anyone though, I've heard of petrol wash in bores doing damage, but never diesel.
What I would be interested to know is, you guys who have experienced enough DPF problems to drive you to have it removed, what sort of mileage are you doing? I mean, one poster talks of a 10 mile drive to work each day, does the engine even get warm?
I'm on my second car with EGR/DPF, I've covered about 180k miles between the two cars. 60K in the 159 and 120K in the Saab (1.9 Tid). I had a EGR valve replaced on the Saab, and the 159 has had a restricter plate fitted. Apart from that I have not had any of the problems often talked about.
So, am I just lucky not to have had any problems? Or is it the number of miles I drive, with few short trips? My journey to work each day is 21 miles of open road, apart from a slow bit through a village I can be doing 70mph after 2 minutes driving. The 21 miles allows some spirited driving. I drive a total of around 25K per year, I've already said in a similar thread, I could not afford to drive a petrol car on that milage. Further to this, my tank to tank fuel consumption is 43mpg. Giving some thought to the reports of DPF clogging and poor fuel consumption's, is there a link here? Are people maybe buying a diesel car, only doing short journeys, sitting in traffic and not getting the chance to give the old girl a blast? This in turn causes the poor consumption and the DPF problems?
If the above is true, I dont think there is anything wrong with the cars, just that the owners have the wrong cars, now dont shot me down! If you are only doing short trips as described, then a petrol engine car must be answer, surely. Nev, the worlds greatest hater of diesel engine cars
is probably right in what he says. The French have been buying and driving diesel powered cars a lot longer than here in the UK, on the vast open roads you can find in France, thats OK, but if Grenoble is full of diesel powered cars on short journeys then there is very likely going to be a growing problem, especially if Jean, Francoise and Thiery are ripping off their DPF over there. The reduction in speed limits he talks about is only likely to make maters worse.
Many people will have bought a diesel engine car for the sake of economy, is this a false economy? Are the dealers at fault for not finding out what sort of driving habits a buyer has? The new low capacity turbo petrol engines must be the answer, happy to give good consumption in stop start traffic, but with the ability to switch to Dynamic setting for some weekend fun. Its a simple, buy the right tool for the job.