OMG!!! BMS JB4 in the works!
Thread Starter
Super Member
Joined: Oct 2011
Posts: 690
Likes: 84
From: GA
X3 M40i
have you heard anything from terry to confirm this? I was thinking of getting a jb1 just now for this season as I was under the impression that this jb4 wouldn’t make it out in time for the end of the summer season but if this isn’t the case I might as well hold off and wait for a jb4 now...
anybody hear anything on timeline to production?
Super Member
Joined: Feb 2016
Posts: 697
Likes: 104
From: Taiwan
GLC43, X P100D, S P100D, CT200H
http://www.burgertuning.com/images/d..._jb4_map_1.jpg
The 43 and the Stinger are very very similar. No reason that the 43 cannot achieve similar numbers.
Perhaps just slightly less due to 10% less displacement. Maybe we can still get 390awhp out of the M276 Dela with just this piggyback.
The 43 and the Stinger are very very similar. No reason that the 43 cannot achieve similar numbers.
Perhaps just slightly less due to 10% less displacement. Maybe we can still get 390awhp out of the M276 Dela with just this piggyback.
MBWorld Fanatic!
Joined: Feb 2017
Posts: 1,283
Likes: 353
From: Michigan
2017 C43 AMG
While they are not promising anything in the near future, this is great news for everyone!! including those who are looking for a full tune. Between the JB1 results and now the possible release of the JB4, it will force full tuners to lower their prices to reality >>>>> ($600-$800) ... based on BMW/Audi tune prices.
According to the vid below, it can be done with an SDS scanner
https://www.youtube.com/watch?v=9xD9d1uRRbQ
Guess what the V1-tune guys were doing....... beta testing
Regardless of the tune/tuner, you're always taking a risk anytime you modify a car, and don't be fooled by tuners who offer "warranty", read the fine print and good luck if you ever have to use it. No one if forcing anybody to tune their car and It's very simple, if you can't take any risk, keep your car stock.
According to the vid below, it can be done with an SDS scanner
https://www.youtube.com/watch?v=9xD9d1uRRbQ
Guess what the V1-tune guys were doing....... beta testing
Regardless of the tune/tuner, you're always taking a risk anytime you modify a car, and don't be fooled by tuners who offer "warranty", read the fine print and good luck if you ever have to use it. No one if forcing anybody to tune their car and It's very simple, if you can't take any risk, keep your car stock.
it can only be done with SDS with top level security. To get this to need someone to generate a unique seed key for a single session for you. THe going rate on most of the coding sites is about $50. I am waiting for someone to be nice enough to release the generator for free before I do more coding work. $50 per session adds up!! Also the limit on the c43 can only be raised to 155 MPH through sds. not sure if its possible to completely remove it through easy coding. It may be ossible to hard code but I have no idea where to begin. honestly 155 is good enough for me. lol
Senior Member
Joined: Jan 2018
Posts: 261
Likes: 70
2018 C43 AMG
it can only be done with SDS with top level security. To get this to need someone to generate a unique seed key for a single session for you. THe going rate on most of the coding sites is about $50. I am waiting for someone to be nice enough to release the generator for free before I do more coding work. $50 per session adds up!! Also the limit on the c43 can only be raised to 155 MPH through sds. not sure if its possible to completely remove it through easy coding. It may be ossible to hard code but I have no idea where to begin. honestly 155 is good enough for me. lol
MBWorld Fanatic!
Joined: Feb 2017
Posts: 1,283
Likes: 353
From: Michigan
2017 C43 AMG
You need a star diag system, then you will need to obtain the seed from the ecu, give to someone who has cracked the algorithm, then they give you a key back for the same session, and then you have full access to code anything you want. if you are near michigan i can help you. but still costs me $50 to get the key
I have a working sds though. Can do a few other cool things too for free like change the amg logo for radio on start up and stuff like that.
MBWorld Fanatic!
Joined: Nov 2016
Posts: 1,527
Likes: 288
From: Toronto, ON
2021 Mercedes C63s AMG Coupe
the seed key in our ecu changes every time you connect. SO essentially, you need to find someone who can generate a new seed key based on the info the ecu gives when you login every time. Most people on the coding forums i am on will charge 50 euro per seed key calculation.
You need a star diag system, then you will need to obtain the seed from the ecu, give to someone who has cracked the algorithm, then they give you a key back for the same session, and then you have full access to code anything you want. if you are near michigan i can help you. but still costs me $50 to get the key I have a working sds though. Can do a few other cool things too for free like change the amg logo for radio on start up and stuff like that.
You need a star diag system, then you will need to obtain the seed from the ecu, give to someone who has cracked the algorithm, then they give you a key back for the same session, and then you have full access to code anything you want. if you are near michigan i can help you. but still costs me $50 to get the key
I have a working sds though. Can do a few other cool things too for free like change the amg logo for radio on start up and stuff like that.MB World Stories
The Best of Mercedes & AMG
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know
Verdad Gallardo
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Super Member
Joined: Feb 2017
Posts: 703
Likes: 136
From: Northeast, USA
GLC43, GTI, X3, Mazda3
MBWorld Fanatic!
Joined: Mar 2017
Posts: 1,026
Likes: 282
From: Omaha, NE
'16 AMG GTS, '21 AMG GLE53
Most of us are pulling sub-4sec 0-60s in the cold weather. Depends on many factors, but .5-.8 sec faster I think is a reasonable expectation.
Senior Member
Joined: Apr 2018
Posts: 402
Likes: 128
From: Houston
2018 C43 sedan
If you want to compare C43 times, the dragy app is free to use the leaderboard section.
Super Member
Joined: Feb 2017
Posts: 703
Likes: 136
From: Northeast, USA
GLC43, GTI, X3, Mazda3
Super Member
Joined: Feb 2017
Posts: 703
Likes: 136
From: Northeast, USA
GLC43, GTI, X3, Mazda3
Member
Joined: Oct 2018
Posts: 122
Likes: 28
2019 AMG C63 Sedan (Gone and wont be missed)
Will the JB4 need to be updated in order to work with the 2019 C43? Since it has different turbos I would guess the stock programing would be different than the 2018 and earlier cars.
Member
Joined: Aug 2018
Posts: 212
Likes: 64
From: the Right coast
'19 C43
However, on another forum, AMR has claimed that they have been able to go hands on with a 2019 and confirmed that nothing is different....two months ago.... Despite the fact that not a single 2019 C43 has been released to even dealers in North America and both MB and AMG have confirmed they are bigger. 
MBWorld Fanatic!
Joined: Feb 2016
Posts: 1,577
Likes: 264
From: Portland, OR
C450, GLC43
I strongly doubt that any engine internals were changed. Doing so would unnecessarily increase cost and add more supply chain constraints for zero benefit. The M276 motor is already very overbuilt for all it's current applicaitons. Goosing another 5-10% hp and tq out of it does is not going to decrease the service life in any appreciable way.
Once the dust settles I'm positive we will see that the older C450/C43 turbos and the newer E43/C43 turbos are cross compatible with no risk the the motor. I strongly suspect that MB is using the larger turbo for the new C43's simply to reduce complexity of their supply chain.
Look at it this way, if the larger turbos can be produced at the same cost or only slightly increased cost of the smaller units then it makes more sense to eliminate the smaller turbos and unify around a single part number. Reducing the overhead expense and complexity for multiple part numbers is sure to be favorable to MB with respect to cost.
