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Showing results 1 to 2 of 2 Search: Posts Made By: Cdearmas84
Forum: N54 11-22-2017, 09:08 PM
Replies: 0
Views: 1,038
Posted By Cdearmas84
Exclamation JB4 question

I purchase my car with an already installed JB4, how do i know the firmware that is install and can i jump from an old firmware to a new firmware without having to change anything or having any...
Forum: N54 11-22-2017, 07:13 PM
Replies: 0
Views: 1,000
Posted By Cdearmas84
Jb4 + BEF issue after install

Good day to all,

I just install the BEF on my 2010 335i and when i go to menu 4/2 i get the trans mode simbol also when i try to go full throttle i get the check engine light and a missfire.

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