2012 E71 Comfort Access stop working

[nj_X6]

Hello, My comfort access for all my doors stopped working the other day. I have changed the batteries on my key fob and checked the fuse in the trunk and everything looks good. It's just my doors, it is not affecting my comfort push start or my trunk comfort open. So I don't think it's my whole comfort access module. I ran my bimmerlink and it shows 4 errors. I also purchased a new driver side door handle, but still the same results. Anyone seen this before? Trying to fix on my own before going to dealership.

[Dayday505]

Did you check the fuse under the dash. My CA went out like this and it was a blown 15a fuse under the passenger side of the dash.

[nj_X6]

I have checked the fuse and replace them all just incase and still the same. start/stop button works fine, trunk comfort access works. Just the doors that have stop working. Very weird. I saw a used comfort access module on eBay but if the start/stop and trunk opens works, could it still be a faulty CAS module?

[Eniamaj]

I’d love to know if you resolved the issue, I have an 2012 X6 35i and the comfort access completely disappeared. In order to start the vehicle I have to now insert the fob like a non comfort access BMW.

[WordOnRoad]

Originally Posted by Eniamaj

I’d love to know if you resolved the issue, I have an 2012 X6 35i and the comfort access completely disappeared. In order to start the vehicle I have to now insert the fob like a non comfort access BMW.

Check fuse #132, I'm sure that's blown. Key less start/driving is called Passive Go and is separate from your Comfort Access. Are your door handles all working?

[Eniamaj]

Not at all, i have to do it manually as well.

[WordOnRoad]

Originally Posted by Eniamaj

Not at all, i have to do it manually as well.

You’ll have to test each door handle in that case. One of them is bad. It’s pretty easy. Takes about 5 min per handle. Just unplug one at a time and see if your CA handles start working again. As for keyless, replace the fuse. That should come back right after.

[Eniamaj]

Much appreciated my G, I’ll try all possibilities and update as to the results

[Eniamaj]

So… I found the blown fuse affecting the Passive Go 7.5, I replaced it and it immediately popped, I thought it was a freak accident and replaced it again and checked it and yes it popped instantly. How can I find the issue?

[jaitoon]

Originally Posted by nj_X6

Hello, My comfort access for all my doors stopped working the other day. I have changed the batteries on my key fob and checked the fuse in the trunk and everything looks good. It's just my doors, it is not affecting my comfort push start or my trunk comfort open. So I don't think it's my whole comfort access module. I ran my bimmerlink and it shows 4 errors. I also purchased a new driver side door handle, but still the same results. Anyone seen this before? Trying to fix on my own before going to dealership.

I had this issue after the dealer changed my car battery. Comfort access, Alarm, plus some other features seemed to be turned off. I took the vehicle back and they had to re-program the DME Control Module...This fixed the issue for me. (2012 X6 50i).