These powerplants are extremely complex with a great degree of interactions between systems. I have no problem believing that a change in tune would mess with the ISG (as well as a bunch of other systems) .

 

That's what i'm worried about, but apparently a bunch of people have been running them with zero problems. JB4 even officially said that the E53 tune will work for the CLE53. Same engine/hybrid system.

 

That would be super. I will keep an eye on these pioneers.

 

I will add some clarity to the conversation as I have a 25 CLE 53 with the JB4. First and foremost instructions and installation was spot on and easy. Customer support is good even though it is email only. I ran some dragy pulls in stock form and then with the JB4. There was a few pulls where it was actually faster in stock form versus map 1 in the JB4. So I decided to do some testing in map 2 but quickly received a check engine light. Keep in mind I am running 93 octane but the CEL was for over boosting but when I pull all the logs in map 1 and map 2 which consisted of 0 to 90 mph pulls and 40 to 90mph pulls. All the data in the logs state I am running 15 psi of boost but the gauge in the car reads 22 psi. I have emailed Burger and they tell me there are bugs with map 2 which they are trying to work but all my other data looks good. So If that is the case the vehicle is no faster than stock. I hope this helps anyone who is on the fence with JB4 but I am curious about the other products in the market to see if they actually work.

 

Good intel! So I should probably hold off on a JB4 for the time being if no faster than stock. Do you think Racechip is any good? I always hear good and bad. But they have one made specifically for the CLE53 so maybe there won't be CEL's like the Jb4? What you think? They even have OBD connectivity now for further communication. Thoughts?

https://www.racechip.us/shop/mercede...a&gad_source=1

 

I have not tried the Race Chip and was hoping other members have to provide feedback.

 

yeah lets see. I'm sure i seen some other members trying RaceChip. Maybe they can chime in.

 

I'll add my feedback...I have a '25 CLE 53 with JB4 on Map 3, usually with a tank of E30-40 (mix of E85 --which is more like E77) and 93. I had JB4 on my old E400 and it was flawless...until I totaled it (unrelated).

I've had the JB4 on this one now for about 2 months. I did get some CELs the first few weeks on Maps 2/3. Spoke with Burger's owner and they're working on the CEL fix, but they need a 'donor' car in the SoCal area to work on firmware upgrades, etc.

But...without any updates, it's almost like the car has figured out it can play nice w/the JB4 piggy back over time. I haven't had a CEL lately at all. Besides, you can clear them with the JB4 app within...I don't know...10 seconds? Legitimately.

Anywho, the CELs are gone, and I'm at traction limits punching it at 70. These factory Michelins aren't going to make it long.

 

That is certainly encouraging news. Are you daily driving on map 3 or map 2?

I have been daily driving on map 1 but as i mentioned in my earlier post it is the same as stock.

Just for curiosity, what are you seeing for boost in each of the maps versus what you see on the car boost gauge?

 

Map 3 daily. It behaves like stock until you ask it to do it's thing (drive the **** out of it).

Honestly, I haven't even done a boost analysis of what the car is saying vs. what the app is saying. Mostly because the JB4 on the M276 engine on my E400 just worked and I trust their product.

So...I don't know what the actual boost is, but when you have to try to wrangle a 4Matic @ 70 ... it's doing what it should be.

EDIT: Map 1 isn't stock. Map 0 is. I think Map 1 adds 2PSI?

 

Correction...this is from a chat w/Burger before I bought the JB4:

 

Thanks for sharing and i would certainly love to see those gains in the different maps but based on the data logs and all the dragy testing I have done with my car that is not the case for me. It is encouraging to hear yours is running well and would be nice if Burger actually had a phone number to talk thru it rather than email to figure out what is going on.

 

By the way, I looked into the CEL code the car was throwing back when it was coming on. (Code: P22C9...which I read through the JB4 app and then googled)

The MB ECU doesn't understand why there is additional boost, so it believes the waste gate is stuck closed, throwing the CEL. Doesn't affect performance whatsoever. It's the reason Burger needs someone to stop by with a 53 to code a solution.

 

What the boost shows in the JB4 app is much lower than what MB claims for stock pressures (22PSI max or something like that?) The JB4 doesn't show nearly as much. Why...I don't know.

All I know is I can put it on Map 0 (stock) and then Map 3, and it's Jekyll/Hyde.

 

Thanks for all the intel bro! I actually live 30 mins from the Burger office. Tempted to hit them up lol. You done any 0-60 runs and recorded the times yet map 0 vs map 3?

 

i have my car at Renntech right now. I can update you in a few weeks.

 

Oh amazing, sounds good man. Lmk what you think!

 

Able to try out the racing chip for the cle-53? Any improvements in the zero to 60 or quarter mile times? How much increase in horsepower and torque was there? How much was it? Is it worth it?

If you have an issue with the car and you remove the chip, is there any way for the dealer to know?

 

Dude, I could just feed you a bunch of bs answers to each of your questions and you’d be none the wiser. Not trying to be an *** or whatever, but do some research on tuners and their claims, figure out what seems best for your situation, and go from there.

That said, I’ve had the JB4 on an E400 and now on my current CLE 53, and it’s been phenomenal on both. I’m at the traction limits with the 4matic+ on the CLE at speed (not just launching). Couldn’t care less about 0-60 times or how many hrsprs I’ve gained.

You’re trying to find the best tune for a 0-60 improvement, and I’m losing traction at 60-70. Stop thinking and start modding.

 

This is running a (likely) E40 blend.

 

god these comments are comical. everyone is talking about all these tunes and plug and plays 😭. how do you spend 100k on a car but go the cheapest route possible tuning with no supporting mods. if its not the renntech power module, I would not use it.

also loosing traction in an awd car at 70 mph is deff driver error or you need tires. you arent loosing traction bc of to much power thats forsure

 

If it’s not what I use on my car and think, you’re clearly stupid!!!!11one

It’s on the factory 20” Pilot Sport 5 summer tires…~5K miles. I didn’t say I was just lighting them up. I said it breaks loose at speed.

What an absolute buffoon.

“WhAt YoU’rE sAyINg IsN’t PoSsIbLe!! I kNoW eVErY dRiViNg CoNdItIoN.”

 

You are correct, I didnt grow up on the track. I dont have thousands of hours of seat time on the track. I also dont bring my 911 to the track either.


If your 4500lb awd car is breaking loose at 70 mph going straight thats an issue.
The cle has 450hp give or take minus 15% drivetrain loss. This isnt a 700+ hp hellcat. Either your tires are cold/worn, TC is completely off, or theres an issue.

the fact you are using a jb4 vs renntechs says everything i need to know. cheers

 

Normally I’d compliment the panda, but your pinky ring and paying 5x the price for a ****tier tune tells me everything I need to know. You think pricier must be better.

Showing off a watch to prove…well, we all know. What a douche.

 

That was my most recent picture. Im one of the biggest jewelers in the diamond district. If I wanted to “show off” you would know. The panda is my everyday watch.

Stop taking things personal, people are just trying to look out for you. Trying to save money and cut corners will cost you more in the long run. Post some pictures im tryna see this cle