hot damn. Almost a 50 HP gain? Ran any 0-60 runs? Would love to hear what you were able to get. That is a bad-*** dyno sheet!

 

Was the above dyno on tune only? Any extras like an exhaust or race gas?

 

I'm willing to bet it was more like 30hp gain. Other dynos have shown the MCS to actually put down about 205ish hp at the crank stock. BMW just underrates it on paper at 189.

 

the car is completely oem. there were several tests, and observe right fit about this result (the ECU was adapted to the dino). I believe the original power is really close to the 205hps and 300nm tq.

 

We used the dyno mode. Our gas is good, we have about 25% ethanol and 96oct. E25 would be at the pump.

 

It would be nice to see a totally stock vs stock+BMS. Dynos aren't good for measuring hard numbers, just relative differences. Some dynos purposefully read high just because it makes people happy to see big numbers.

Not saying that's the case here, but 236 doesn't mean much if you don't know where you started. It seems to be an impressive increase regardless though.

 

I agree what you said. I did not have the opportunity to test stock. At that time did't know how to test on a dyno.

 

This happened to me yesterday: Drivetrain Malfunction.

After about 10 minutes of moderate driving, I shut the car off to run a quick errand. After about 60 seconds I returned to the car, started it up, and proceeded to pull out of a driveway. Since I wanted to immediately cut across a couple of lanes of traffic, I flicked it into sport mode and gave her the gusto in second gear. Immediately, all power went out of the car (HOLY ****!!) and I had to quickly reassess and found myself pulling off to a driveway on the right side.

After shutting the car completely off and restarting the engine, everything was back to normal (though I am driving with a yellow check engine light now, which hasn't yet cleared).

Like james, mine is a 2015 MCS (B46 engine) with the B48 Stage 1 Beta Burger tune. I had put about 250 miles on the car without the tune with a similar driving profile without any Drivetrain Malfunction warnings.

I need to reassess how I want to proceed. I lean towards getting a USB cable and dialing back the extent of the tune to see if I can't find a level at which I can reliably WOT accelerate from stop. However if there's anything I can provide to Burger Tuning which may help them tweak the overall F56 '15 experience for other owners, I'm certainly willing.

What I not (yet) entertaining is taking the tune off completely. I don't want to give up everything I've gained -- way too much benefit behind the wheel!

 

So there is something with the 2015 that makes it not compatible with the tune?
But the 2014 ones are fine???

 

Terry,
Please fix before Xmas!

 

I have a 2014 and have not had any issues. Also have not heard of this happening with any other 2014.

 

I have a 2014 and have had the BMS tune for over three months with zero problems. I drive the sh*t out of it. Must be something with the 15's.

 

Just read the code and send the details in along with the build date. You may be able to use a basic OBDII reader. Then based on that we can send you a BMS USB cable and updated firmware to test. You load the firmware at home with a laptop to the car. Easy.

 

Terry, would absolutely love to help you out! I don't (yet) have an OBDII reader -- can I go to Autozone (or similar) and get this read? If not, then I'm willing to purchase a reader online (though it may take a few days as I assume I'd have to order through the internet).

Thank you for the assistance.

 

There are several bulletins on the ,2015 one of which is to recalibrate the software for the torque correction which fixed my issues so far. The extra power from the tune was causing it to go into limp on launch's. I did have my engine light cone on during my trip to Florida but it went back off so hoping it was just a bad tank of gas as it is acting fine now. 2 people at the mini store here have 2015 with the tune and no issues at all.

 

Hi james. Could you share any bulletin numbers or more info with me? I searched NAM, but didn't see anything.

Also, my OBDII reader should arrive on Saturday.

 

What you'd really want is a extended reader like a BT cable, but I don't know if the B48 models are supported by BT yet. Short term just drive by autozone and have them read the codes for free with a basic OBDII reader. Or buy a cheap one at Harbor Freight for $90.

Again, for anything BETA tuning related, communicate with me via email. terry@burgertuning.com.

Thanks.

 

I am on vacation in Florida so won't be back to work till Monday. Will get you the info then.

 

Will a BT reader with app like torque work as well?

 

Thank you Terry. I'll copy you via email as well, as I'd like to do my part to help troubleshoot this tune for the 2015+ cars.

The OBDII code was a U0100 (communication error).

Thanks james. Hope you have a great holiday break!

 

The stage one works great on the B38 3 banger. Can definitely feel the increase in torque. Really pulls strong in the mid range.

 

The shop re adjusted the torque correcting software and had no issues for about three weeks but then yesterday was just leisurely leaving a stoplight and bang limp mode. There have been multiple logs for Mass Air Flow sensor but they all show " unknown Reason". Probably going to be pulling off the tune and sending it back to Burger this w much as I hate to as it just scares me to much

 

You should really get in contact with us for technical support. We can't do much for you on the forum. If you want to get it resolved just email me as I have some ideas.

 

Terry, and progress on getting a stock v. BMS dyno chart for the Justa and MCS so we can see some numbers in context?

 

Not on the B48, although I'm sure we'll get that done sooner or later.