Power Loss After DPF Regen Attempt – W205 250d

[Bigdrew]

Welcome.

AdBlue delete and DPF delete - it's a bit extreme, no?

I suggest that you take the car to an independent MB specialist who has MB STAR diagnostic computer. The fault codes can then be read and the diagnostic instructions followed. This will identify the cause for the power loss.

Deleting parts of the car (and rendering it unroadworthy in the process) instead of following established diagnostic procedures is like starting with an amputation instead of a blood test....

I think if the car is put onto the star and its had a adblue delete that would put his car back to square one ie delete the remap

 

[rf065]

Nox is not part of the MOT .....yet....Thats how. But that's likely to change and when it does there will be a lot of unhappy owners putting then back to stock and then probably selling them.

Scaremongering again, I first read that 4 years ago when I was considering a remap/delete, and guess what, despite all the claims it was definately happening, it still hasn't.
If it ever does in the distant future, my car will be that old it will be worth far less than the cost to put it back to stock, so will be scrapped. But I will have had the benefit of many trouble free years with no Adblue to worry about! Happy days!

 

[ALFAitalia]

It should be introduced ASAP imo.....NOX (along with particulate matter) is one of the most harmful car emissions to humans.....ADblue reduces it by over 90 %.... so as much as I can understand those that delete it.... and I'm hardly a stickler for rules myself....but I don't bypass or remove emissions equipment.
I think that those with issues should either fix it properly, sell it and or buy a petrol model. Bodging it and emitting more harmful crap on the process is not the answer.

Just my view of course.......

 

[rf065]

I think that THE MANUFACTURERS of cars with issues should either fix it or design the system properly,

Just my view of course.......

FTFY

 

[ALFAitalia]

That's what should happen....I'm amazed that they are not being held to account for this poor design.

 

[MSG2004]

AI Overview
Learn more

Removing or disabling AdBlue and DPF systems can lead to an MOT failure, as these systems are part of the emissions control and are checked during the test.

Here's a more detailed explanation:

• AdBlue and DPF are part of emissions control:
  AdBlue is a solution that reduces harmful nitrogen oxides (NOx) emissions, while the DPF traps particulate matter (soot).
  
  
• MOT checks emissions:
  The MOT test includes checks for emissions, and a vehicle with a removed or disabled AdBlue or DPF system will likely fail the emissions test.
  
  
• DPF removal is a specific MOT failure point:
  Since 2014, the presence and functionality of the DPF has been a specific MOT failure point.
  
  
• AdBlue system checks:
  While the MOT test doesn't specifically check for AdBlue system disabling, the presence and functionality of the AdBlue tank, injector, and NOx sensors are inspected.
  
  
• Consequences of removal:
  Removing or disabling these systems is illegal and can lead to fines and other penalties.
  
  
• MOT tester responsibility:
  MOT testers are responsible for ensuring vehicles meet emissions standards, and they can face consequences for failing to identify and report issues with these systems.
  

• Will AdBlue Delete Make My Car Fail Its MOT?
  Technically, AdBlue delete makes your diesel car illegal to drive on public roads in the UK. Consequently, if this is noticed, you...
  
  AdBlue Delete
  
  
  
• Diesel particulate filters, all you need to know about DPFs | RAC Drive
  21 Dec 2023 — Do I need a diesel particulate filter (DPF) to pass the MOT? A diesel particulate filter check has been part of the MOT...
  
  RAC
  
  
  
• Diesel particulate filters: protecting the environment and the MOT’s ...
  25 Sept 2017 — Serious consequences for testers and garages The bans give a clear message about the importance of maintaining the int...
  
  GOV.UK blogs
  
  
  
• Show all

Generative AI is experimental.

 

[rf065]

AI Overview
Learn more

Removing or disabling AdBlue and DPF systems can lead to an MOT failure, as these systems are part of the emissions control and are checked during the test.

Here's a more detailed explanation:

• AdBlue and DPF are part of emissions control:
  AdBlue is a solution that reduces harmful nitrogen oxides (NOx) emissions, while the DPF traps particulate matter (soot).
  
  
• MOT checks emissions:
  The MOT test includes checks for emissions, and a vehicle with a removed or disabled AdBlue or DPF system will likely fail the emissions test.
  
  
• DPF removal is a specific MOT failure point:
  Since 2014, the presence and functionality of the DPF has been a specific MOT failure point.
  
  
• AdBlue system checks:
  While the MOT test doesn't specifically check for AdBlue system disabling, the presence and functionality of the AdBlue tank, injector, and NOx sensors are inspected.
  
  
• Consequences of removal:
  Removing or disabling these systems is illegal and can lead to fines and other penalties.
  
  
• MOT tester responsibility:
  MOT testers are responsible for ensuring vehicles meet emissions standards, and they can face consequences for failing to identify and report issues with these systems.

• Will AdBlue Delete Make My Car Fail Its MOT?
  Technically, AdBlue delete makes your diesel car illegal to drive on public roads in the UK. Consequently, if this is noticed, you...
  View attachment 169259
  AdBlue Delete
  
  
  
• Diesel particulate filters, all you need to know about DPFs | RAC Drive
  21 Dec 2023 — Do I need a diesel particulate filter (DPF) to pass the MOT? A diesel particulate filter check has been part of the MOT...
  
  RAC
  
  
  
• Diesel particulate filters: protecting the environment and the MOT’s ...
  25 Sept 2017 — Serious consequences for testers and garages The bans give a clear message about the importance of maintaining the int...
  View attachment 169260
  GOV.UK blogs
  
  
  
• Show all

Generative AI is experimental.

Means absolutely nothing, how would a MOT tester know a car was remapped when it passes the MOT with flying colours?