DPF Delete Pipe & ECU Reflash Source

[daytonatrbo]

Originally Posted by bawareca

My SCR cat (the one on the picture) is still installed and untouched. I didnt notice any negative effects, but maybe it is time to gut it too. I have gutted my DPF.

On an only slightly related topic, is it possible to ADD error checking to the DDE? For example, it would be nice if we could add, or maybe adjust if it already exists, a check engine light for when the stupid thermostat fails on these diesels. Gassers have a SES if the engine fails to reach operating temp. Yet many of us don't know that our thermostat is running 20°C cooler than intended. I understand it's a complex failure mode, with the need to relate operating time, engine load, etc.

[bawareca]

Originally Posted by daytonatrbo

On an only slightly related topic, is it possible to ADD error checking to the DDE? For example, it would be nice if we could add, or maybe adjust if it already exists, a check engine light for when the stupid thermostat fails on these diesels. Gassers have a SES if the engine fails to reach operating temp. Yet many of us don't know that our thermostat is running 20°C cooler than intended. I understand it's a complex failure mode, with the need to relate operating time, engine load, etc.

It is doable to add a new sub-routine in the DDE, but only if someone has the original manufacturer description of the programming structure. But after all the t-stat fails only every 60-80k miles. Which reminds me that I have to check mine.

Originally Posted by Stockx5

Could you explain how you got it out of the car? did you need a lift?

Although I have access to many lifts, I did mine with the car on jack stands. I removed passenger side motor mount and bracket, lifted the engine slightly, dropped the subframe a bit and was able to wiggle the DPF out. The long pipes for the pressure differential sensor have to be bent because they are hitting the firewall on the way out. It is not particularly pleasant job, but doable.

[daytonatrbo]

Originally Posted by bawareca

It is doable to add a new sub-routine in the DDE, but only if someone has the original manufacturer description of the programming structure. But after all the t-stat fails only every 60-80k miles. Which reminds me that I have to check mine.


Although I have access to many lifts, I did mine with the car on jack stands. I removed passenger side motor mount and bracket, lifted the engine slightly, dropped the subframe a bit and was able to wiggle the DPF out. The long pipes for the pressure differential sensor have to be bent because they are hitting the firewall on the way out. It is not particularly pleasant job, but doable.

Yeah, I need to set myself a maintenance reminder to check the coolant tempt while driving.


Also, I've been meaning to pick up one of these, think it would work for the dpf job:

[garagelogician]

Originally Posted by bawareca

Although I have access to many lifts, I did mine with the car on jack stands. I removed passenger side motor mount and bracket, lifted the engine slightly, dropped the subframe a bit and was able to wiggle the DPF out. The long pipes for the pressure differential sensor have to be bent because they are hitting the firewall on the way out. It is not particularly pleasant job, but doable.

I've never wrenched on a BMW before, do they use one-time use "stretch" bolts like VW/Audi does?