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      04-20-2019, 03:47 PM   #360
tonyhhandler
...............
Egypt
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Drives: f30 328i
Join Date: Dec 2018
Location: egypt

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Quote:
Originally Posted by yoodog View Post
You guys buy new fem from bmw dealer when changing it??? Because it seems that it is not possible to use second hand fem, unless you get t with DME
Hello Friends,

You can retrofit Xenon lights (522) on any FEM (Mid or High).
If the retrofit is done on a MID FEM the shutter will not work if the wiring is done upon the normal Xenon retrofit wiring, You have to let the shutter wiring work on the normal halogen high beam and then code it.

I mean
on the left headlight:
Let pin no.6 on the headlight ---- which is pin no.26 on A173*2B on the FEM the same on both ends (don't remove it).

on the right headlight:
Let pin no.6 on the headlight ---- which is pin no.34 on A173*3B on the FEM the same on both ends (don't remove it).

then code FEM:
MAPPING_FERNL_1_L_OUTPUT (change from 18-bix_l to 7-fl_l)
MAPPING_FERNL_1_R_OUTPUT (change from 18-bix_r to 7-fl_r)

This will change the output channel for the Xenon shutter inside the FEM from BiXenon (which is not supported by the MID FEM) to the output channel of the normal halogen high beam and enjoy your Xenon without replacing the FEM .
Appreciate 0