DPF Equipped Vehicles

mikey72

I like the chrysler. Very nice.

greenman7

According to this thread I should have broken down years ago. My Citroen C3 1.4Hdi spends nearly all it's time doing short 10 mile journeys or less.
I do not keep the engine revs between 2000-2500 and I still manage 65mpg. I have done 70,000 miles, most of them urban and the car still runs the same as when I bought it.

worried_jim

greenman7 wrote: »

According to this thread I should have broken down years ago. My Citroen C3 1.4Hdi spends nearly all it's time doing short 10 mile journeys or less.
I do not keep the engine revs between 2000-2500 and I still manage 65mpg. I have done 70,000 miles, most of them urban and the car still runs the same as when I bought it.

If it is that old does it have a dpf?

daveyjp

But that engine doesn't have a DPF and is better for it. My dad has had two Fiestas with that engine, at 100,000 they were just run in. His second went to 130,000 before it was sold on and he never had a problem with either.

Johnmcl7

Identifying whether the car has a DPF or not can be difficult depending on the car as there's some ranges that had the DPF on some engines and not others or varied when the DPF was introduced. There's also some which had DPFs fitted to some of the models sold in the EU but not in the UK. I find the best way to find out is to look up the exact engine and find out when the DPFs were fitted (owner's forums tend to best for it).

It's also worth bearing in mind that not all DPF equipped engines are the same, the problem with some older engines is that they came under the Euro IV emissions laws so the manufacturers had to basically bolt on a DPF to an engine which was never designed for it. Newer diesel engines are usually designed with the DPF in mind so it's closer to the engine and has less trouble regeneration or at least that's the theory. The VW 2.0 PD (Pumpe Duse) TDI 170bhp engine is the bolted on DPF type whereas the newer CR (Common Rail) versions were designed with the DPF. From what I've read the newer CR versions seem to suffer far less DPF issues than the older PD engines although that's by no means scientific and the CR engines aren't entirely free of issues either.

I have had a car with the older VW 2.0 PD TDI 170bhp engine with the DPF fitted, I do around 3,000 miles per year with short journeys when I'm at work but I try to make sure I take on one decent run (usually taking the dog to a walk which I need to do anyway) to make sure the engine gets a decent outing. So far in a couple of years I've not seen the DPF light although that's not to say no-one else will in my usage.

John

waynedance

My 2003 car has DPF and I do approx 40 miles per day to work and back, no problems with mine in 18 months of ownership.

Did plug on a diagnostic the other month just to read the values from the ecu and it showed how many times the DPF had regenerated over a period of time.

gilbert_and_sullivan

Citroen with their eolys injection system do seem to be reasonably trouble free, at least until the fluid needs replacement and then people try to cut costs by DIYing, then the trouble starts.

Does sound a bit ludicrous buying a car for economy then regularly having to take it for an extended drive to nowhere to burn off the soot created by saving fuel in ther first place.

Trebor16

daveyjp wrote: »

I'd say 20,000 miles a year as a minimum with plenty of long runs. My Audi was just about OK doing 18,000 a year, X type not so good as the number of urban trips increased. Urban miles also affect EGR valves.

Are you saying that you should do that sort of mileage with a DPF equipped car to make it viable? It isn't the mileage that determines whether they will cause problems or not but the way they are used. If the exhaust on a DPF car is getting hot enough on a journey to burn off the particles that have been collected then it should work ok. It is when the car is used on short journeys that the potential for problems arises, when the exhaust is not reaching a high enough temperature.