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+---- Thread: BMW X3 F25 keyless access (/showthread.php?tid=68889)
BMW X3 F25 keyless access - spider80 - 13-09-2022
The question is the following. How to activate keyless (comfort) access on BMW X3 F25? CAS has been changed, all wires and antennas have been installed, the handles have been changed to touch ones. But the system doesn't work. There is one error on the antenna in the rear bumper. Can this error disable the whole keyless access system? The stock key fob works.
RE: BMW X3 F25 keyless access - inspi1981 - 13-09-2022
Do You have Comfort Access Keyfob?
RE: BMW X3 F25 keyless access - larshutten - 13-09-2022
Did you clone cas or copy key data?
RE: BMW X3 F25 keyless access - evgenijj - 13-09-2022
One antenna error may disabled whole system.
RE: BMW X3 F25 keyless access - Bagum4uk - 13-09-2022
If you replaced CAS without CA, it will not work! All regular operations will works, except Comfort Access
RE: BMW X3 F25 keyless access - spider80 - 14-09-2022
I have not done anything to the car, it has already come to me like that.
I will try at first repair antenna in rear bamper.
RE: BMW X3 F25 keyless access - inspi1981 - 14-09-2022
I saw lot of car with fault with rear bumper antenna, but CA on door working
RE: BMW X3 F25 keyless access - Fx82 - 14-09-2022
(14-09-2022, 07:39 AM)spider80 Wrote: I have not done anything to the car, it has already come to me like that.
I will try at first repair antenna in rear bamper.
Code this antenna out and try again.
RE: BMW X3 F25 keyless access - Bagum4uk - 14-09-2022
(14-09-2022, 07:39 AM)spider80 Wrote: I have not done anything to the car, it has already come to me like that.
I will try at first repair antenna in rear bamper.
You can use any antenna from side skirts or inside, or from hood where’s battery installed! Just to understand if it’s antenna issue! Maybe there’s wiring problem, maybe car had some accident before on the rear…
(14-09-2022, 08:29 AM)inspi1981 Wrote: I saw lot of car with fault with rear bumper antenna, but CA on door working
Each side have antennas, of course if rear is dead on side all will works fine except rear
(14-09-2022, 15:43 PM)Fx82 Wrote:(14-09-2022, 07:39 AM)spider80 Wrote: I have not done anything to the car, it has already come to me like that.
I will try at first repair antenna in rear bamper.
Code this antenna out and try again.
There’s no coding, it’s similar thing which easily possible to fix