Esys 3.40.2 Review
: Connect your laptop to the car via the ENET cable. Open E-Sys and click the
Updating the firmware (i-Step) of individual ECUs or the entire vehicle to newer versions. esys 3.40.2
Run E-Sys_Setup_3.40.2_build_...exe as Administrator. Install to the default path: C:\EC-Apps\ESG\E-Sys : Connect your laptop to the car via the ENET cable
However, if you own a modern G-series or an electric i4/iX, you must look to ESYS 4.x or paid tools like BimmerUtility. The security protocols in modern BMWs (S18A, S18S) have effectively locked out 3.40.2. esys 3.40.2
BMW releases frequent updates to ESYS, often tied to new firmware databases (PSdZData). So why do forums and Facebook groups still buzz about ? There are three key reasons:
