Comfort access

Clainer98 · 03-12-2019, 06:29 PM

I recently purchased a 2008 BMW 135i, two of the things wrong with the car is the battery is saying low voltage and is draining when it sits for a week or so. As well as the comfort access on the drivers side handle (first world problems I know).
Is there a connection between the two? What are the things I could do to try and troubleshoot the handle?
Thanks!
Feel free to ask questions for additional information!

xQx · 03-12-2019, 06:56 PM

Assuming you don't have to park the car on the street -
Your best option for rectifying that battery low voltage issue is to buy yourself a c-tek charger. It costs less than a new battery, and you'll need it at some point anyway.

I'd also try cleaning the door handle, and changing the button battery in your remote as a first step for your CA issue. It probably won't fix the problem, but it costs very little to rule it out

Edit: also, if you're parking in your home garage, lock the car and keep the keys well outside of comfort access range; otherwise the car doesn't completely turn off.

duder13 · 03-13-2019, 05:58 PM

From what I understand, Comfort Access is one of the first things to go when your battery gets low.

Clainer98 · 03-24-2019, 03:26 PM

Quote:

Originally Posted by duder13

From what I understand, Comfort Access is one of the first things to go when your battery gets low.

Replaced both the fob battery and car battery and still doesn't work..

:

MightyMouseTech · 03-24-2019, 09:01 PM

Sounds like a short in the drivers handle. Could try disconnecting the drivers handle and see if the battery drain issue goes away.

Scanning for faults should really tell you what's going on.

Clainer98 · 03-24-2019, 09:06 PM

Quote:

Originally Posted by MightyMouseTech

Sounds like a short in the drivers handle. Could try disconnecting the drivers handle and see if the battery drain issue goes away.

I don't think that it is a battery drain issue I just think it was time to replace the battery. Is the drivers side handle a common problem with comfort access?

MightyMouseTech · 03-24-2019, 09:36 PM

Quote:

Originally Posted by Clainer98

Quote:

Originally Posted by MightyMouseTech

Sounds like a short in the drivers handle. Could try disconnecting the drivers handle and see if the battery drain issue goes away.

I don't think that it is a battery drain issue I just think it was time to replace the battery. Is the drivers side handle a common problem with comfort access?

All the handles are a common problem. Usually get a battery drain issue at the same time.

03-12-2019, 06:29 PM	#1
Clainer98 Enlisted Member 3 Rep 34 Posts Drives: 2008 BMW 135i Join Date: Mar 2019 Location: South Carolina iTrader: (0) Garage List 2008 BMW 135i [0.00]	Comfort access I recently purchased a 2008 BMW 135i, two of the things wrong with the car is the battery is saying low voltage and is draining when it sits for a week or so. As well as the comfort access on the drivers side handle (first world problems I know). Is there a connection between the two? What are the things I could do to try and troubleshoot the handle? Thanks! Feel free to ask questions for additional information!
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03-12-2019, 06:56 PM	#2
xQx General 903 Rep 1,003 Posts Drives: 2008 BMW 135i (E88 N54 6AT) Join Date: Aug 2016 Location: Sunshine Coast QLD Australia iTrader: (0)	Assuming you don't have to park the car on the street - Your best option for rectifying that battery low voltage issue is to buy yourself a c-tek charger. It costs less than a new battery, and you'll need it at some point anyway. I'd also try cleaning the door handle, and changing the button battery in your remote as a first step for your CA issue. It probably won't fix the problem, but it costs very little to rule it out Edit: also, if you're parking in your home garage, lock the car and keep the keys well outside of comfort access range; otherwise the car doesn't completely turn off.
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03-13-2019, 05:58 PM	#3
duder13 Captain 767 Rep 904 Posts Drives: Cashmere Join Date: Mar 2018 Location: US iTrader: (0)	From what I understand, Comfort Access is one of the first things to go when your battery gets low.
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03-24-2019, 09:01 PM	#5
MightyMouseTech Major General 4338 Rep 6,196 Posts Drives: 13 135i 6MT LeMans Blue MSport Join Date: Feb 2013 Location: Ottawa, Canada iTrader: (0)	Sounds like a short in the drivers handle. Could try disconnecting the drivers handle and see if the battery drain issue goes away. Scanning for faults should really tell you what's going on.
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