2012 GL350 DPF/EGR/SCR/ADBLUE/FLAP delete - WIP & Guide
Newbie
Joined: Feb 2010
Posts: 13
Likes: 1
cl55
I'd like to know why you say no recommend? For diesels in my state they only do OBDII test and no tailpipe test. Is it the tailpipe test or visual inspection that you're correctly pointing out will be an issue and not the OBDII test? Or do you think even a good tune like Gazwould suggests below would still be a fail? If so why?
Please chime in on which tune providers we would put in the "good" category? Doing research on all the options and ramifications and the emissions test is the "go", "no go" decider. Who is the best provider with verified folk passing their OBDII test after their delete tune?
Please chime in on which tune providers we would put in the "good" category? Doing research on all the options and ramifications and the emissions test is the "go", "no go" decider. Who is the best provider with verified folk passing their OBDII test after their delete tune?
Senior Member
Joined: Jul 2011
Posts: 328
Likes: 56
2012 S350 Bluetec 4MATIC; 2011 ML350; 2005 C230k;
With every software modification the cal ID will change. In CA during smog check the computer reads cal ID from ECU and compare it with approved cal ID’s for specific vehicle. If the number matches it would pass. Otherwise the smog will fail. More info here:
https://www.bar.ca.gov/arsc/newslett...-modifications
https://www.bar.ca.gov/arsc/newslett...-modifications
