Hello all Auto Professionals! ![enjoy]( "enjoy")
Would it help if we get a Mercedes DEF section/blog/post or maybe a DEF section per brand started?
I looked around for any general advice regarding the Mercedes warnings on Diesels with the DPF and the AdBlue systems. ONLY 20 Starts left!
These seem to be causing more problems (for me) lately.
There would be a lot less if people followed directions to re-fill these systems before they reach the no start stage.
I searched our forums for DEF or SCR or DPF. To short a search string for any results!
I searched Selective Catalytic Reduction, no results.
If there is a thread already, I apologize to the admin's, please correctly place this. I looked for at least 45 minutes, no good results.
With a DAS/XENTRY system there is a way to enable 5 more starts, I have not done this yet.
I did find this WITHOUT DAS SYSTEM FIX using GOOGLE on YouTube:
I hear most people change the level sensors as well as the heater and maybe another piece.
A mobile tech in Canada that I work closely with says his DAS/XENTRY will not get into SCR directly (after no starts left). (I have not seen this.)
I find info that looks like most DEF functions are in the engine control module.
I think after you reach NO START and replace needed parts, clear codes, it is only an adaptation that is needed to shut off MIL.
I think we have learned that # of starts are not counted if wheel speed sensors do not report movement/travel between starts.
We have also learned the hard way that some chassis use a "wicking" process to detect DEF levels, think, "presoak" or that just needs time to soak and wick it's way up until felt. (Customer left car sitting for an hour and a half and everything was working when we got back to it.)
I read that Developers mode will allow turning DPF functions off on some models. That won't due for countries with emission tests required.
What do you all think?
Would it help if we get a Mercedes DEF section/blog/post or maybe a DEF section per brand started?
I looked around for any general advice regarding the Mercedes warnings on Diesels with the DPF and the AdBlue systems. ONLY 20 Starts left!
These seem to be causing more problems (for me) lately.
There would be a lot less if people followed directions to re-fill these systems before they reach the no start stage.
I searched our forums for DEF or SCR or DPF. To short a search string for any results!
I searched Selective Catalytic Reduction, no results.
If there is a thread already, I apologize to the admin's, please correctly place this. I looked for at least 45 minutes, no good results.
With a DAS/XENTRY system there is a way to enable 5 more starts, I have not done this yet.
I did find this WITHOUT DAS SYSTEM FIX using GOOGLE on YouTube:
I hear most people change the level sensors as well as the heater and maybe another piece.
A mobile tech in Canada that I work closely with says his DAS/XENTRY will not get into SCR directly (after no starts left). (I have not seen this.)
I find info that looks like most DEF functions are in the engine control module.
I think after you reach NO START and replace needed parts, clear codes, it is only an adaptation that is needed to shut off MIL.
I think we have learned that # of starts are not counted if wheel speed sensors do not report movement/travel between starts.
We have also learned the hard way that some chassis use a "wicking" process to detect DEF levels, think, "presoak" or that just needs time to soak and wick it's way up until felt. (Customer left car sitting for an hour and a half and everything was working when we got back to it.)
I read that Developers mode will allow turning DPF functions off on some models. That won't due for countries with emission tests required.
What do you all think?