Clean diesel is a pain V2.0

[primeral]

Originally Posted by ZetaTre

Why?

I originally didn't want the hassle of an ECM reflash

[ZetaTre]

Originally Posted by primeral

I originally didn't want the hassle of an ECM reflash

Oh, sorry... By cleaning, you meant get rid of the matrix. I thought you had a clogged DPF.

Won't work out the box: the DDE in our car measures differential pressure and won't accept a 0 differential (what you'd have without a matrix). You can probably get around it by adding a restriction on the post matrix side.

You still would have to reflash or find a way to have the DDE measure some backpressure.

How are you going to address the SCR? I have a feeling the catalyst there won't like getting all the soot

[Wolfgang Gullich]

Isn't there a kit you can order from Europe that has all of the necessary parts to do the DPF delete which includes the software reflash? I think I remember reading about it somewhere on the interwebs...

[primeral]

Originally Posted by ZetaTre

Oh, sorry... By cleaning, you meant get rid of the matrix. I thought you had a clogged DPF.

It is clogged. That is the only reason I am messing with it. I would not install parts on the X5 for the sole purpose of improving performance, I have another high performance project car that scratches that itch.

My main goal was to actually clean the DPF and reinstall it, not to gut it.

Won't work out the box ... You still would have to reflash or find a way to have the DDE measure some backpressure.

How are you going to address the SCR? I have a feeling the catalyst there won't like getting all the soot

Indeed, I was hoping to run a factory system, but now I have no choice but to do a reflash. The matrix in the catalytic converter is not as fine as the DPF, I think it will be fine.

As far as reflashes, I was trying to avoid paying $1000-1200 for a tune. Since I've surrendered to deleting the DPF, I did some homework and there seem to be ECM patching utilities out there that delete one or more of the various emissions control features. The problem is extracting the OEM ECM. The Galletto 1260 cable and utility I have (from my E39 M5 days with the Jailbreak Tune ) isn't compatible with the E70 35d so I was considering a Galletto 2 with V54 software. If anyone has any insight on this matter, please chime in.

[ZetaTre]

Originally Posted by primeral

It is clogged. That is the only reason I am messing with it. I would not install parts on the X5 for the sole purpose of improving performance, I have another high performance project car that scratches that itch.

My main goal was to actually clean the DPF and reinstall it, not to gut it

So let's solve that problem as I went through the very same issue with my dad's car (a euro version 325d) and discovered my 35d (US) was traveling down that route..

I start by saying I don't know the history of yours so something unique may have happened which makes what I am about to say not applicable.

The primary reason why the DPF fails is because the car doesn't regen. And with BMWs the primary reason why the car doesn't regen is because the thermostat fails and does not allow the engine to stay at the operating temperature required for a regen to carry out.

Let me ask you something:
1) Are you having issues with glow plugs also?
2) Do you have a 480A code stored?

If so read this: 2006 E91 330d DPF warning Woes. You'll see my contribution in the last post: from that point on my dad's 325d has been fine.

I did check the thermostat in my 35d and it was indeed on it's way out. Here's the post: X5 35d engine temperature - Bimmerfest - BMW Forums

Let me know!!!

DPF do not clogged just like catalytic converters do not just die unless there is an underlying problem