Service Issues: XC90 D5 engine DPF (Diesel Particulate Filter)

[oilburner]

Your wish is my command!

http://www.superchips.co.uk/curves/volvod5185bhp.pdf

Still looking for a good V8 one...

[oilburner]

Best I could find for the V8 (note scale in Kilowatts!):

http://www.rri.se/popup/performanceg...p?ChartsID=622

Click second tab for a bigger graph.

[aliayosofy]

i have the same problem but even make it worse as it pump presure back the fuel filter and break the fuel filter base and stop the engin

[kevinlewis02]

I havre just purchased an S60 D5 185 and have over the past two weeks had instances where the "Soot Filter Full" warning message comes on. This generally occurs just when I need the power to overtake and can be slightly embarrassing having to limp back behind the Ka, Corsa etc. As soon as I hit 3500 RPM or above I lose power and enter into crawl mode. I travel daily 220 miles at an average speed of 56Mph often reaching higher speeds at certain points, ( a miracle in itself on the M6). It seems that the problems I'm experiencing are slightly different, however once i stop and allow a couple of minutes of restfor the car all is back to normal!
Can anyone help?

[shimon340]

Hi

There's a few options here.

Either; your DPF is genuinely full and the engine is derating as part of its self protection.

Pos causes; In service regeneration hasnt been completed successfully (vehicle fault or vehicle usage means regen doesnt complete) and vehicle needs DPF to be cleared.

Usually accompanied with other fault codes and message to the driver via the cluster

OR

(as the derate is intermittant)

Depends on the car but the ECD16 common rail diesel system with DPF on other manufacturers also has pressure differential sensor on the DPF. The "DPF filter full" comes from the ECU's calculation of the particulate mass in the filter but also (as a backup) the differential pressure sensor on the DPF.

Now, if that sensor is intermittently saying pressure differential is too high, then the ECU will think the DPF is blocked and derate the engine.

I'd get a full code read and ECU parameters read to see what the calculated mass of particulate is in the filter and if the vehicle has logged high DPF differential pressure. Also, you can see how many attempted regens were made and how many completed.

You'd expect to see "differential pressure too high" as an intermittant fault presuming when you drove to the garage the engine was derating.

There's a few causes here and a few routes to repair.

good luck and please keep us posted

[stourmoons]

I wondered if you could help with some advice, since I have a similar but different problem to the Particulate filter issues dicussed on this thread. I have an S60 185 BHP D5 06 plate. I bought it 8 months ago and drove about 15000 very satisfying (mostly motorway) miles before the soot filter full message showed. I regularly do 100 mile plus journeys almost every week. The message showed on one such journey, so regeneration should have been taking place...I took the car to volvo garage that carried out the 90K service did the cambelt, carried out a successfull DPF regeneration and gave me the car back saying that they needed it back to do the throttle swirl the following week. I asked one of their technicians if it was OK to do a fairly long journey planned for work before bringing it back - he said should be OK

During that journey two days later the soot filter full message came on again and the engine response was intermittently sluggish. I had another problem when I looked under the bonnet. Oil in the coolant and very little showing on the end of the dipstick. I called the AA who said - oil cooler probably and it should regenerate once that is sorted.Was recovered to the garage. Oil coolerand throttle swirl done and fluids changed. The DPF wouldn't regenerate and I was told I needed a new DPF - it 'needs to be done'. I have done one 500 mile round trip journey since having the car back and the soot filter full message is back.

I have spent a fortune on the car and am a little wary of my garage's advice at the moment. My old Petrol S40 gave me 100,000 miles trouble free motoring. I not quite sure what to do next. Please, I would appreciate your thoughts

[Stevexc90]

IMHO the whole DPF issue is just a swizz to get round emission measures that makes the cars less usable.

Is there a way of "getting round" this feature?

[Rentagas]

Well.....

Volvo came late tothe dpf/fap party. PSA, Mazda and fiat have been stuffing cars for a decade.
In mainland Europe where differential taxes are based on particle emissions and dpf less cars are banned from cities there are fines for removing dpf's. However for cars, not commercial vehicles or campervans, it is not illegal to remove a dpf at the moment.
Of course removing the dpf is only possible if the ECU is altered to ignore codes from the dpf system.
Because psa made such a hash of implementing dpf's there are many 10 yr old cars that are being scrapped because fixing the dpf problems cost more than the car is worth. Hence there are several companies offering dpf removal/deletion. (do a google search)

The Volvo problem seems nothing like as bad presumably because they implemented a mature system and there do not seem to be as many garages catering to fixing this. I suppose this may change as the cars fitted with this system get older. I try to restrict the use of my euro 5 xc90 to long journeys. Of course this Volvo has even more stringent regulations to meet than the 2006 euro 4 model.

Of course doing any of this is probably immoral.

[chb]

If your longest journey in the week is not enough to regenerate the DPF then you would be better off cycling instead.

[GJB]

I see on ebay a DPF cleaner is being sold anyone used ?