Hello!
My W166 has 188 000 km on it and I had many problems with check engine light from the NOX sensors / big problem with this car/. However I decided not to give any more money for NOX sensor and made a "professional" Adblue, SCR and NOX delete. After 2000 km I had another check engine light and it was the soot sensor on the DPF - the second lambda sensor. I am afraid this can prevent the DPF regeneration and harm my DPF, which is in perfect condition.
I am advised now to remove the DPF, but in my country I will have big problems + black smoke from the car By the way the Xentry's fault code is 16CB00
Has anyone else did SCR off without removing the DPF? Do you have problems with it?
Also if someone can help online I am willing to pay I just want to drive and not have any problems, because I am driving mainly in the city and short distance rides, which will harm the DPF very fast without regenerations.
Thanks in advance and I will be happy to get some feedback

 

I did the deletes and removed the DPF, but not the SCR. This was over two years ago and up until about 3-4 months ago, she never smoked black. Now it has started but I don't believe it's due to the deletes,

There's a gentleman new to this site by the name Vin R who has just done the deletes, including the SCR. He (and others who've removed their SCR's) have complained about a nasty ammonia stink after removing the SCR. Beware.

 

I deleted mine 2 years ago and I have a strong ammonia smell inside the car as well.

BTW, what is SCR?

 

My mecedes service updatet my complety sistem and addblue is now perfect. no lights on my dashboard!