BMW E84 E90 Cruise Control System Retrofit

This instruction show you guide on how to retrofit cruise control system for BMW E84 E90 vehicle.



2024.05 BMW Rheingold ISTA+ 4.47.18 4.23.14 ISTA-P 3.71 Free Download

NCS Expert BMW Coding Software Download




Install SZL

Run BMW NCS software add FA

3 series E90 cruise control system retrofit need add code”540”

X1 E89 cruise control system retrofit need add code “544”.(some E89 X1 also use “540” code)


After using NCS software add FA,coding for DSC


Coding for KOMBI



Read trouble code by ISTA diagnostic software,it will show “005E50”

Error Code 005E50 – DSC: Steering-angle sensor: serial number; calibration required


You need use ISTA to calibrate DSC

Operate–>Service–>02 Chassis

Select “Steering angle sensor”…

Select “ABL” and follow the guide to perform calibration

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