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X3 F25 (2011 - current)
The latest X3 brings added style and new features to the BMW's mid-sized SUV. Talk about the BMW F25 X3 with other X3 owners now!

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Old 05-11-2016, 02:05 PM
StevenT StevenT is offline
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Location: Southern California
Join Date: Jun 2005
Posts: 52
Mein Auto: E90
Rear dash camera causing interference with comfort access

I own a 2016 X3 35i M. I have had a dashcam installed on the front windshield for a while and it works fine.

I recently came into possession of a second dashcam, and decided to mount the second dashcam on the rear hatch window, near the top of the window centered. Once I did this, the comfort access features stopped working, e.g., I could not open the car remotely using the key fob, could not open the car by placing my hand on the door handle, could not start/stop the car unless I held the key up next to the designated area on the steering wheel column, etc.

I removed the rear dashcam and all of the comfort access features started working again, so I can say with a high level of confidence that the problems was caused by the dashcam mounted on the rear window. I am presuming it was generating some type of interference that blocked the car's ability to sense the key fob. Furthermore, it must be location based, as I have used this same dashcam in the front window, and experienced no problems.

I thought the wires embedded in the rear window were for the radio, but now I suspect that they are for comfort access. I have searched the web but have not found anyone else experience any problems like I have. The only dashcam problems that seem to be discussed deal with the camera draining the car battery, resulting in a variety of weird behaviors with the car. However, in my case, the problem was definitely not battery related.

Has anyone heard about or experienced anything similar? When I have some free time, I may try mounting the dashcam somewhere else on the rear window to see if that results in a different behavior.

Any suggestions/insights appreciated.
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Old 05-11-2016, 03:47 PM
02420X3 02420X3 is offline
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Location: Boston
Join Date: Mar 2011
Posts: 935
Mein Auto: 2011 X3 35i
This may help you to pick a better location. Look at #07, F25 Communication and Entertainment. I don't know if anything changed with the LCI, but this is what the original antenna layout was.
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