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+---- Thread: FEM replace reason: Comfort Access retrofit (/showthread.php?tid=123109)
FEM replace reason: Comfort Access retrofit - kubaskl - 21-09-2026
Hello guys. BMW F82
Added antennas and handles by wiring diagram. Of course it does not work, FEM coded as 322 FA.
And after that it had faults for antennas and handles missing.
So i decided to check TAL with new FA and ahaaa, it has different HWEL. Mine does not have CA... Funny is, that by ETK in BMW, there is no condition difference if the car has Comfort Access or not like other рдят5 have where is showed different рдят number if equipment is changed. Thats why i wasnt prepared.
Anyway in case of FEM replacement, do i need to get donor with key? Or just simply FEM?
because of циLoскing with some tool or just simply read both EEPROMs, copy write to donor FEM and thats all? Im affraid not, because different hardware will not accept my data from FEM without that hardware
I guess not.
Any experience with VVDI PROG/CGDI/Yanhua/CG Pro ? I have all those tools but i dont trust them much. What must be exactly done to get working donor FEM with CA? Present keys are unusable for CA? Have OEM keys and it also have two coils on board
RE: FEM replace reason: Comfort Access retrofit - jaramillo - 22-09-2026
Hi, get CA FEM and keys, clone fem using correct tools, eeprom doesnt contain immo data...
You already have the tools to perform the work
RE: FEM replace reason: Comfort Access retrofit - sqorpius - 23-09-2026
There is a difference in HWEL fitted from factory. But if you order a FEM now from dealership it will always be the FEM-MAX (so with all options like CA etc).
RE: FEM replace reason: Comfort Access retrofit - kubaskl - 05-10-2026
Done. Donor FEM marked as MAX without key. Everything works and also old keys from old FEM works including working as keyless also now
Thank you guys for tips
RE: FEM replace reason: Comfort Access retrofit - kklobo - 06-10-2026
How many hours take to add wirings to doors and antennas ? im curious