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M139 M139 is offline
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Default Any JB4 Love for the A45S? - 06-22-2021, 08:55 PM

Hi there,

I had the privilege of using the JB4 with my previous EA888 Audi S3 hatch. It was very stable with just stock components and I worked with George to arrive at a great custom map for it.

Have now moved into a 2021 Mercedes-AMG A45S hatch which I am taking delivery of this week.

I see that there is a JB4 beta for the A35. Are there any plans for a JB4 for the more powerful 45/45S models with the M139 engine? I would be happy to help test and from the look of the CLA/GLA/A forums, there's plenty of people who would pay for it!

Flash tuners for this platform seem to have fallen by the wayside with the difficulties of dealing directly with the Mercedes Bosch MG1 ECU unit. And many would pay quite a lot for moderate gains via piggy back while being able to avoid the ECU/TCU flash route altogether.

Also, and importantly, the M139 engine on which the CL/GL/A 45/45S is based is going to be the petrol engine basis of many of the larger AMGs going forward, including the 2022 C63, so it might be worth having a look now with an eye to the future!

Last edited by M139; 06-22-2021 at 09:44 PM..
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M139 M139 is offline
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Default 06-24-2021, 11:27 PM

Nobody?
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Terry @ BMS's Avatar
Terry @ BMS Terry @ BMS is offline
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Default 06-25-2021, 02:04 PM

That specific model we haven't made a JB4 for yet. We plan to as soon as someone local turns up with one.


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M139 M139 is offline
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Default 06-27-2021, 01:47 AM

Thanks Terry. Might not benefit me, as I am going the ECU/TCU flash route, but great for those that come after!
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Default 06-27-2021, 08:37 AM

The JB4 is a tuning tool that remains quite useful even if flash tuned!


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It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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briansoong briansoong is offline
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Default 07-11-2021, 12:12 PM

Quote:
Originally Posted by Terry @ BMS
That specific model we haven't made a JB4 for yet. We plan to as soon as someone local turns up with one.
I own a 2021 CLA 45 and am 40 minutes away in Arcadia, CA, I'd be willing to swing by.
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Default 07-11-2021, 07:02 PM

Quote:
Originally Posted by briansoong
I own a 2021 CLA 45 and am 40 minutes away in Arcadia, CA, I'd be willing to swing by.
Best to email him direct at terry@burgertuning.com for that.



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briansoong briansoong is offline
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Default 07-11-2021, 07:22 PM

Quote:
Originally Posted by Steve @ BMS/Fuel-It!
Best to email him direct at terry@burgertuning.com for that.
Just shot an email over, thanks for the headsup.
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Default 07-12-2021, 07:35 AM

Awesome, hope this works out!


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Default 07-20-2021, 09:00 AM

Thanks again to briansoong for coming by with his A45. After poking around awhile we determined it's just not practical for us to make a JB4 for it. While the MAP sensor is very easy to reach, the TMAP sensor is deep under the engine and virtually impossible to reach, even with the car on a lift. You'd have to take apart half the engine bay to access it.

On the plus side we were able to test our BOV plate which is working quite well.

And while it was here we did a few baseline dyno runs for posterity.
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Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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