New DPF blocked after 1000 miles

rjack · Oct 20th, 2018, 14:53

Hello everyone,

Here's the problem I experience. The car is a 2010 C30 1.6D.

After fitting a new DPF (the old one was toasted), it keeps blocking after only 1000miles of highway use (never use the car for in-town driving, minimal driving time is 20min).

Car goes in limp mode, displays "engine repair required". On VIDA, I have no other fault codes that "Particulate filter blocked".

I execute a forced regeneration, the car drives like it should again, and 1000 miles later, here we go again... DPF blocked.

What I've tried so far:
- Verify the ADM module/Eolys tank/fluid level. Everything seems ok, and communicating like it should. No error codes on VIDA.
- Replace DPF pressure sensor, hoses, and DPF temperature sensor. The readings of VIDA are correct (3-4Hpa on idle, 300°C after warmup).
- Replace EGR valve.
- One injector was leaking. Replaced it.
- Reflashed the ECU with Volvo dealer.

I must mention that on startup, there is a strong diesel smell coming from the engine bay. Once it has reached operating temperature, the smell seems to go away.

This problem is driving me nuts. I assume that something either is blocking the DPF too fast (too much soot particles coming from something not operating the way it should) ; or the regeneration cannot be achieved during normal driving (what are the required conditions by the ECM?).

What's you guess on this?

Cheers!

phutyle · Oct 20th, 2018, 19:20

Did you reset the Odometer Particle Trap in Vida after replacing the DPF?

rjack · Oct 21st, 2018, 15:35

Yes if I remember well this was reset when we replaced the DPF. I dont have any reminder on Vida in any case.

Does it have any influence on the operation of the DPF anyway?

john850kershaw · Oct 21st, 2018, 19:51

Hi i would make extra sure that you don't have any air leaks on the induction side as this will cause lean running causing more soot build up and block the DPF, if you do have VIDA and DICE see if you can watch the DPF temp, you could monitor this when driving.

rjack · Oct 22nd, 2018, 17:41

Well your guess on leaks could be right: the DPF is once again blocked, in less than 100 miles this Time...

Where should I look first?
The diesel fumes now reach into the cabin and the smell is overwhelming... the back of the engine plastic cover on the turbo side is also vert dirty with diesel particles

Bungo · Oct 23rd, 2018, 19:36

Check inside throttle body and turbo pipe for excessive oil.
Sounds like stuff getting into the dpf rather than dpf or settings. First idea would be turbo related or possibly PCV.

Oct 20th, 2018, 14:53	#1
rjack New Member Last Online: Nov 2nd, 2018 18:30 Join Date: Nov 2016 Location: BE	New DPF blocked after 1000 miles Hello everyone, Here's the problem I experience. The car is a 2010 C30 1.6D. After fitting a new DPF (the old one was toasted), it keeps blocking after only 1000miles of highway use (never use the car for in-town driving, minimal driving time is 20min). Car goes in limp mode, displays "engine repair required". On VIDA, I have no other fault codes that "Particulate filter blocked". I execute a forced regeneration, the car drives like it should again, and 1000 miles later, here we go again... DPF blocked. What I've tried so far: - Verify the ADM module/Eolys tank/fluid level. Everything seems ok, and communicating like it should. No error codes on VIDA. - Replace DPF pressure sensor, hoses, and DPF temperature sensor. The readings of VIDA are correct (3-4Hpa on idle, 300°C after warmup). - Replace EGR valve. - One injector was leaking. Replaced it. - Reflashed the ECU with Volvo dealer. I must mention that on startup, there is a strong diesel smell coming from the engine bay. Once it has reached operating temperature, the smell seems to go away. This problem is driving me nuts. I assume that something either is blocking the DPF too fast (too much soot particles coming from something not operating the way it should) ; or the regeneration cannot be achieved during normal driving (what are the required conditions by the ECM?). What's you guess on this? Cheers!

Oct 22nd, 2018, 17:41	#5
rjack New Member Last Online: Nov 2nd, 2018 18:30 Join Date: Nov 2016 Location: BE	Well your guess on leaks could be right: the DPF is once again blocked, in less than 100 miles this Time... Where should I look first? The diesel fumes now reach into the cabin and the smell is overwhelming... the back of the engine plastic cover on the turbo side is also vert dirty with diesel particles Last edited by rjack; Oct 22nd, 2018 at 18:14.

Oct 23rd, 2018, 19:36	#6
Bungo Premier Member Last Online: Oct 29th, 2020 23:25 Join Date: Sep 2015 Location: Midlands	Check inside throttle body and turbo pipe for excessive oil. Sounds like stuff getting into the dpf rather than dpf or settings. First idea would be turbo related or possibly PCV. __________________ 2008 S40 2.0d R design auto powershift Last edited by Bungo; Oct 23rd, 2018 at 19:50.

Oct 20th, 2018, 19:20	#2
phutyle Junior Member Last Online: Aug 14th, 2021 22:28 Join Date: Jan 2018 Location: De Whest of Ireland	Did you reset the Odometer Particle Trap in Vida after replacing the DPF?

Oct 21st, 2018, 15:35	#3
rjack New Member Last Online: Nov 2nd, 2018 18:30 Join Date: Nov 2016 Location: BE	Yes if I remember well this was reset when we replaced the DPF. I dont have any reminder on Vida in any case. Does it have any influence on the operation of the DPF anyway?

Oct 21st, 2018, 19:51	#4
john850kershaw New Member Last Online: Apr 8th, 2023 14:17 Join Date: May 2017 Location: Four Crosses	Hi i would make extra sure that you don't have any air leaks on the induction side as this will cause lean running causing more soot build up and block the DPF, if you do have VIDA and DICE see if you can watch the DPF temp, you could monitor this when driving.

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