BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > M3 (E90 / E92 / E93) > General M3 Forum (E90 + E92 + E93)
 
BPM
Post Reply
 
Thread Tools Search this Thread
      05-31-2017, 09:47 AM   #1
brownru
New Member
0
Rep
8
Posts

Drives: 2009 E93
Join Date: Sep 2013
Location: Ohio

iTrader: (0)

Garage List
2011 BMW M3  [0.00]
Comfort Access issues

Hello all, wondering if you have any suggestions on my issue. I have been recently having issues with my comfort access. The issue I have I haven't been able to find after searching through the forums. I am having an issue with specifically locking my car. When I initially started having problems, I replaced the fob battery and that didn't work. The same issue exists on both sides of the car, so I don't think it is a door handle sensor. Also, I have the same problem with both key fobs. Unlocking the doors using CA works every time, without hesitation. Intermittently, I get the alert that the key is not present, which I am attributing to the same issue. I have read that you can have issues with CA if the car battery is weak (don't know how true this is), and if it is true, this may be the issue since I have a 2011 that still has the original battery (to my knowledge; I just bought the car last August.). Just trying to avoid taking it to the stealership for diagnosis. Thanks in advance!
Appreciate 0
      05-31-2017, 11:47 AM   #2
Captain Apex
Stop the Hate, Get a V8
Captain Apex's Avatar
29
Rep
117
Posts

Drives: E92 M3 ZCP
Join Date: Nov 2016
Location: Westminster, MD

iTrader: (2)

So I had comfort access issues before, that went away.

My belief is that I had to much wax on the finger sensor and it was driving the comfort access crazy. As soon as I exited the car it would lock the car.
Appreciate 0
      05-31-2017, 02:35 PM   #3
cclinard1
Second Lieutenant
48
Rep
229
Posts

Drives: 08 E90 M3 6MT SSII
Join Date: Sep 2015
Location: Wilmington, NC

iTrader: (0)

Low battery is a notorious culprit of all sorts of issues on these cars. I think that is a good start and replacing a 6 year old battery is certainly not a waste. It'll probably save you some more headaches in the near future.
Appreciate 0
      05-31-2017, 03:27 PM   #4
MShift
Lieutenant
United_States
79
Rep
437
Posts

Drives: MW '13 E92
Join Date: Mar 2008
Location: Miami

iTrader: (3)

My CA was acting up too when I was having battery issues, it's probably related...
Appreciate 0
      05-31-2017, 03:57 PM   #5
brownru
New Member
0
Rep
8
Posts

Drives: 2009 E93
Join Date: Sep 2013
Location: Ohio

iTrader: (0)

Garage List
2011 BMW M3  [0.00]
Thanks all. Just wanted to make sure I was going down the right path!
Appreciate 0
      05-31-2017, 04:57 PM   #6
Tracyis300
Lieutenant
Tracyis300's Avatar
United_States
70
Rep
512
Posts

Drives: 09 E90 M3
Join Date: Sep 2014
Location: Los angeles

iTrader: (0)

I'm having the same issue! Started to happen about 2-3 months back.
But in my case? It's obvious that it's the battery. Even the car tells me that it's the battery when i start it up
It's a 09 on the original battery that gets feed by the tickle every few days.

But yeah! Those are early symptoms of the battery getting weak. Soon your clock will start to reset on every startup

My service is due next month. So I figured I'll wait and have it taken care of then.
But in your case? Get that battery looked at or if you have EDC? To check that as well. It's known to drain the battery.
Appreciate 0
      06-01-2017, 08:42 AM   #7
brownru
New Member
0
Rep
8
Posts

Drives: 2009 E93
Join Date: Sep 2013
Location: Ohio

iTrader: (0)

Garage List
2011 BMW M3  [0.00]
Wonderful! At least I know what is going on now! That is funny you said that, mine is due for service in August. I may just wait until then unless things start to get worse. I don't really have any other issues at the moment, so hopefully I can hold off. It just seems so weird that I couldn't find this elsewhere on the forum. I have read of folks that couldn't unlock their doors, but not folks that couldn't lock them (unless it was a door handle sensor issue). Thanks again, I appreciate having the feedback from the community!
Appreciate 0
      12-13-2017, 10:50 AM   #8
BMWNTHZST
Enthusiast
BMWNTHZST's Avatar
Canada
62
Rep
1,176
Posts

Drives: 2015 F80 M3
Join Date: Jan 2009
Location: Toronto

iTrader: (27)

Garage List
Quote:
Originally Posted by brownru View Post
Wonderful! At least I know what is going on now! That is funny you said that, mine is due for service in August. I may just wait until then unless things start to get worse. I don't really have any other issues at the moment, so hopefully I can hold off. It just seems so weird that I couldn't find this elsewhere on the forum. I have read of folks that couldn't unlock their doors, but not folks that couldn't lock them (unless it was a door handle sensor issue). Thanks again, I appreciate having the feedback from the community!
Did you ever get your CA issue resolved, was it your battery?

I have been having similar issues with CA. My car will not lock using the door handles (by the way both have been replaced). In order to lock the car I need to use my key however it cannot be any further then 1 foot from the door handle when I push the lock button.

The door will unlock with the key from about 10 feet away and by using my hand through the handle.

Other symptoms are:

- warning message that I don't have the key with me when I try to start the car
- when I start the car (sometimes) the radio will be really loud for about 15 seconds then either shut off or go to the last station I left it on at the proper volume level.
- my drivers seat will not move to the setting saved in the key(s) when I open the door.

Action taken so far:

- new battery in both the car as well as both keys
- replaced both door handles
- replaced 3 antennas in the car

I was thinking the only thing left to replace and get programmed is the CAS module, perhaps it's gone bad?
__________________
2015 F80 /// M3 Alpine White / Black
2011 E93 /// M3 Space Grey Metallic / Fuchsrot
1997 E31 840Ci Jet Black / Black
2004 E46 /// M3 Laguna Seca Blue / Black
Appreciate 0
Post Reply

Bookmarks

Tags
comfort access, locking issue

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 03:55 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST