Drivetrain Malfunction Possibly Related to BMS JB+ Tuner

Romeo190 · 06-11-2018, 11:09 PM

Quote:

Originally Posted by Kafkaesque328

Quote:

Originally Posted by Romeo190

It's probably that ur jb4 went bad or got water damage or something along the lines I had the same issues reached out to the guys at BMS and they were able to help me out ....I bought a water case protection box they sell and they swapt out the jb4 for me ....guys had great customer service.

Hoping so and hoping to plug it in and be back in business again. They sell a water case? I should look into that

Yea email them or go onto their site it's definitely worth it it's lik 20 dollars I beleive worth every penny because it will protect ur jb4 motherboard

Kafkaesque328 · 06-12-2018, 12:08 AM

Quote:

Originally Posted by Romeo190

Yea email them or go onto their site it's definitely worth it it's lik 20 dollars I beleive worth every penny because it will protect ur jb4 motherboard

Not seeing it on their site, I'll email them.

Romeo190 · 06-12-2018, 03:45 AM

Quote:

Originally Posted by Kafkaesque328

Quote:

Originally Posted by Romeo190

Yea email them or go onto their site it's definitely worth it it's lik 20 dollars I beleive worth every penny because it will protect ur jb4 motherboard

Not seeing it on their site, I'll email them.

It's called JB4 plastic all weather enclosure

Kafkaesque328 · 06-12-2018, 03:25 PM

Quote:

Originally Posted by Romeo190

It's called JB4 plastic all weather enclosure

Ah, mine is JB+, much smaller, different.

Kafkaesque328 · 06-13-2018, 08:19 PM

Got the new JB+ unit today, installed it, started up the car and...

no problems. Back in business. Thanks to Burger for sending me a new unit! Man I forgot how much more power this little thing puts down. You really feel that spike in boost and subsequent power when you get past turbo lag, esp in the 3rd gear pull area. Kind of spiky. What I will say is what I remember from APR stage 1 on my GTI - these tuners cannot replicate how smooth and linear OEM power delivery is. Guess the trade off is more power though. There is probably some way to smooth out power delivery when you are just running a piggyback tuner, like downpipe or something but thats totally not going to happen.

Moral of the story, if you have problems and have something like this installed, remove it and the problems go away, don't bother taking your car in for service. Look at the unit itself.

DarkStarBimmer · 06-14-2018, 12:16 PM

Quote:

Originally Posted by Kafkaesque328

Got the new JB+ unit today, installed it, started up the car and...

no problems. Back in business. Thanks to Burger for sending me a new unit! Man I forgot how much more power this little thing puts down. You really feel that spike in boost and subsequent power when you get past turbo lag, esp in the 3rd gear pull area. Kind of spiky. What I will say is what I remember from APR stage 1 on my GTI - these tuners cannot replicate how smooth and linear OEM power delivery is. Guess the trade off is more power though. There is probably some way to smooth out power delivery when you are just running a piggyback tuner, like downpipe or something but thats totally not going to happen.

Moral of the story, if you have problems and have something like this installed, remove it and the problems go away, don't bother taking your car in for service. Look at the unit itself.

Glad they sorted it out for you! It's always nice to see a company stand behind their products.

Kafkaesque328 · 06-29-2018, 11:53 PM

Quote:

Originally Posted by DarkStarBimmer

Glad they sorted it out for you! It's always nice to see a company stand behind their products.

Yes, really happy with the outcome here. The new JB+ is working flawlessly and its back to feeling like the 328i I have come to know and love. I cannot imagine having this car and keeping it stock. Such a significant power bump.

Spiderm0n · 10-12-2018, 02:22 PM

Quote:

Originally Posted by Kafkaesque328

Moral of the story, if you have problems and have something like this installed, remove it and the problems go away, don't bother taking your car in for service. Look at the unit itself.

Last night I had the exact same problem, and I also have a JB+. I think I purchased mine around the time you got yours too. I'm going to take it off and see if all is kosher.

Spiderm0n · 10-13-2018, 08:42 AM

Well, in my case removing the JB+ did not resolve anything. Off to the service center on Monday.

DarkStarBimmer · 10-13-2018, 09:41 AM

GL Spiderm0n Let us know what happens

Spiderm0n · 10-16-2018, 02:14 PM

So apparently I didn't give the JB+ enough time unplugged - the problem has disappeared now that it is removed. I am hesitant to plug another one in... I purchased this car and am keeping it for a few more years.

Vanosman · 12-12-2019, 11:05 PM

I concur, many of the newer BMW's are sadly weaker.

I have owned many 3s, 5s.

Currently 2014 M528i bms+4psi
Charge Pipe next week https://www.racdyn-usa.com/PROD/139+...QaArOhEALw_wcB

2013 335is conv . Dinan S2 400ft lb

Test drove a few last week, CARMAX $20k 51k miles, met black/coral paddle 135is. Very fast and impressive, similar experience as 335is coupe but more edgy and scary and thrilling. (charge pipe blew up on day 2) limp mode returned.

Tested 2015 435i coupe, $25k 40k miles,black/black 18" warranty expired(nothing like M4)
also paddle shift (of course) and it was a dog and not very nimble like my e46 sedans nor e92 M3 nor e93is.

Bought wife Grey RC350 v6 Lexus with nice 2 tone cream leather. Boring until 3rd gear, single clutch jerks, but perfect for ladies.

I agree with OP, these newer cars are losing something for enthusiasts, they are so over engineered, the thrill up my leg is gone for import paddle cars under $70k.
Looks like LITHIUM ION MOTOR coming soon, so many these WEAK SAUCE cars are going to be CASH 4 Clunkers BY 2030

06-13-2018, 08:19 PM	#27
Kafkaesque328 Major 483 Rep 1,267 Posts Drives: 2016 328i M Sport Join Date: Dec 2013 Location: El A iTrader: (0)	Got the new JB+ unit today, installed it, started up the car and... no problems. Back in business. Thanks to Burger for sending me a new unit! Man I forgot how much more power this little thing puts down. You really feel that spike in boost and subsequent power when you get past turbo lag, esp in the 3rd gear pull area. Kind of spiky. What I will say is what I remember from APR stage 1 on my GTI - these tuners cannot replicate how smooth and linear OEM power delivery is. Guess the trade off is more power though. There is probably some way to smooth out power delivery when you are just running a piggyback tuner, like downpipe or something but thats totally not going to happen. Moral of the story, if you have problems and have something like this installed, remove it and the problems go away, don't bother taking your car in for service. Look at the unit itself. __________________ 2016 Black Sapphire 328i \| M Sport Pkg. \| JB+ \| Premium Pkg. \| Heated Seats \| Driver Assist Pkg. \| Navigation \| Misc. Coding \| 35% Ceramic Tint Past: 2014 Black 320i \| Sport Pkg \| BMS Stage 1
	Appreciate 2 DarkStarBimmer208.00 zen_f308.50 Quote

10-13-2018, 08:42 AM	#31
Spiderm0n Enlisted Member 39 Rep 48 Posts Drives: 2015 328i M Sport Join Date: Mar 2017 Location: Bergen County, NJ iTrader: (0)	Well, in my case removing the JB+ did not resolve anything. Off to the service center on Monday.
	Appreciate 0 Quote

10-13-2018, 09:41 AM	#32
DarkStarBimmer Colonol Forbin 208 Rep 338 Posts Drives: 17' BSM 330i xDrive Join Date: Jan 2018 Location: Phoenix, Arizona iTrader: (0) Garage List 2017 330i [0.00]	GL Spiderm0n Let us know what happens
	Appreciate 0 Quote

10-16-2018, 02:14 PM	#33
Spiderm0n Enlisted Member 39 Rep 48 Posts Drives: 2015 328i M Sport Join Date: Mar 2017 Location: Bergen County, NJ iTrader: (0)	So apparently I didn't give the JB+ enough time unplugged - the problem has disappeared now that it is removed. I am hesitant to plug another one in... I purchased this car and am keeping it for a few more years.
	Appreciate 0 Quote

12-12-2019, 11:05 PM	#34
Vanosman Enlisted Member 1 Rep 38 Posts Drives: 2013 e93/2014 F10/2004 M3 Conv Join Date: Apr 2009 Location: Oklahoma iTrader: (0)	N20 M528i BMS+ I concur, many of the newer BMW's are sadly weaker. I have owned many 3s, 5s. Currently 2014 M528i bms+4psi Charge Pipe next week https://www.racdyn-usa.com/PROD/139+...QaArOhEALw_wcB 2013 335is conv . Dinan S2 400ft lb Test drove a few last week, CARMAX $20k 51k miles, met black/coral paddle 135is. Very fast and impressive, similar experience as 335is coupe but more edgy and scary and thrilling. (charge pipe blew up on day 2) limp mode returned. Tested 2015 435i coupe, $25k 40k miles,black/black 18" warranty expired(nothing like M4) also paddle shift (of course) and it was a dog and not very nimble like my e46 sedans nor e92 M3 nor e93is. Bought wife Grey RC350 v6 Lexus with nice 2 tone cream leather. Boring until 3rd gear, single clutch jerks, but perfect for ladies. I agree with OP, these newer cars are losing something for enthusiasts, they are so over engineered, the thrill up my leg is gone for import paddle cars under $70k. Looks like LITHIUM ION MOTOR coming soon, so many these WEAK SAUCE cars are going to be CASH 4 Clunkers BY 2030 Attached Images
	Appreciate 0 Quote