Comfort Access

angler · 06-09-2013, 06:56 PM

My car came with CA otherwise I would never have gotten it. My problem is that I live in a very rural area where I leave my car keys in the car. Been doing this for the past 20 years or so. I am getting conflicting opinions about leaving my keys in the car. The question is by leaving the keys in the car will I shorten the battery life? My SA says as long as the electronics are off nothing will happen to the battery. I question that as I thought the electronics sense the key which enables the CA to work. Any thoughts on this subject as I am tired of bringing my car keys in and then getting to the car and having to go back in the house because I forgot the keys where inside.
P.S. If you read Mike Miller his experience is people shorten the battery life by leaving the keys in the car or close to the car.

MuNkY6913 · 06-10-2013, 12:35 AM

Where do you live again?

Hahahaha. Just kidding.

1addyfan · 06-10-2013, 02:00 AM

I'm in SoCal... and I wouldn't dare leave the doors unlocked, let alone leave the keys inside.

dtwyim · 06-10-2013, 01:07 PM

Yes, I have heard that if the car can sense the key nearby, it never goes to 'sleep' completely. Hence shortened battery life.

What about your house key, do you not carry them around either and not lock your house?

fullboost · 06-10-2013, 01:30 PM

Quote:

Originally Posted by angler

My car came with CA otherwise I would never have gotten it. My problem is that I live in a very rural area where I leave my car keys in the car. Been doing this for the past 20 years or so. I am getting conflicting opinions about leaving my keys in the car. The question is by leaving the keys in the car will I shorten the battery life? My SA says as long as the electronics are off nothing will happen to the battery. I question that as I thought the electronics sense the key which enables the CA to work. Any thoughts on this subject as I am tired of bringing my car keys in and then getting to the car and having to go back in the house because I forgot the keys where inside.
P.S. If you read Mike Miller his experience is people shorten the battery life by leaving the keys in the car or close to the car.

When you go into town for groceries or whatever do you still leave your keys in the car?

angler · 06-10-2013, 01:54 PM

Quote:

Originally Posted by dtwyim

Yes, I have heard that if the car can sense the key nearby, it never goes to 'sleep' completely. Hence shortened battery life.

What about your house key, do you not carry them around either and not lock your house?

Combo lock on door, makes it easy as there is no need to have keys

angler · 06-10-2013, 02:00 PM

Quote:

Originally Posted by fullboost

When you go into town for groceries or whatever do you still leave your keys in the car?

Sometimes, depends where in town. After this thread I might need to change my habits

rking117 · 06-10-2013, 02:39 PM

yes it WILL shorten the life of the battery. likely your CA module wll never power down everything while the keys are in the area. After all that is what CA is for. I wonder if you can have the module either uninstalled or deactivated. That is something i would investigate.

angler · 06-10-2013, 02:50 PM

Quote:

Originally Posted by rking117

yes it WILL shorten the life of the battery. likely your CA module wll never power down everything while the keys are in the area. After all that is what CA is for. I wonder if you can have the module either uninstalled or deactivated. That is something i would investigate.

Agreed, I was thinking the same. I really do not find any use for the system as how hard is it to push a button on the key?

Lester · 06-11-2013, 12:01 AM

the batteries are not expensive, they are standard issue. So what if they last a few months shorter. If your car ever did get stolen - then how important is a $2 battery?

litebulb · 06-11-2013, 01:21 AM

Wow a lot of replies

I have CA as well and seriously the fob isn't that big or weigh that much. If you are worried about wasting your battery, why don't you leave your key under a rock 5 feet away from your car. Or you could hang it by your house door.

angler · 06-11-2013, 06:58 AM

Quote:

Originally Posted by Lester

the batteries are not expensive, they are standard issue. So what if they last a few months shorter. If your car ever did get stolen - then how important is a $2 battery?

I am talking about the car battery, if that was only two dollars we would not be having this conversation. LOL

angler · 06-11-2013, 07:00 AM

Quote:

Originally Posted by formula M

OP, that is what comfort access is about, you have no keys...

Just keep the fob next to your wallet, hopefully you don't keep that in your car. When u leave the house, put both in your pocket and you will never have to worry about your locks/ignition.

If you have keys, then you do not have comfort access, nor a BMW...

You do have keys though, your key fob needs to be with you so in reality it's a key that functions a bit differently then a standard one.

tuco44 · 06-11-2013, 10:08 AM

Glad I am not the OPs insurance company...................

06-09-2013, 06:56 PM	#1
angler love to fish! 46 Rep 649 Posts Drives: 13: SG 135i M-Sport Cabrio 6mt Join Date: Aug 2008 Location: riding in the ultimate tanning machine iTrader: (1)	Comfort Access My car came with CA otherwise I would never have gotten it. My problem is that I live in a very rural area where I leave my car keys in the car. Been doing this for the past 20 years or so. I am getting conflicting opinions about leaving my keys in the car. The question is by leaving the keys in the car will I shorten the battery life? My SA says as long as the electronics are off nothing will happen to the battery. I question that as I thought the electronics sense the key which enables the CA to work. Any thoughts on this subject as I am tired of bringing my car keys in and then getting to the car and having to go back in the house because I forgot the keys where inside. P.S. If you read Mike Miller his experience is people shorten the battery life by leaving the keys in the car or close to the car.
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06-10-2013, 12:35 AM	#2
MuNkY6913 The Crowing 111 Rep 2,005 Posts Drives: BMW 135i Join Date: Feb 2010 Location: State College, PA iTrader: (4) Garage List 2009 135i [8.00]	Where do you live again? Hahahaha. Just kidding. __________________ 2009 135i : BMS JB4 G5 ISO,CXRacing FMIC Kit,Injen Cold Air Intake,Evolution Raceworks Charge Pipe,Walboro Inline Fuel Pump, E85 BMS Backend Flash w/ 60% E85,BMS Meth injection (trunkmount),BMS dual meth nozzles,Spec stage 2+ clutch w/ steel SWFW,BMS Catless Downpipes,Berk Tech Race Axleback
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06-10-2013, 02:00 AM	#3
1addyfan Private First Class 9 Rep 171 Posts Drives: '09 135i Vert ///M-Sport 6 M-T Join Date: Apr 2013 Location: Cali iTrader: (2)	I'm in SoCal... and I wouldn't dare leave the doors unlocked, let alone leave the keys inside.
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06-10-2013, 01:07 PM	#4
dtwyim Captain 52 Rep 874 Posts Drives: BMW no more Join Date: Oct 2010 Location: Canada iTrader: (0)	Yes, I have heard that if the car can sense the key nearby, it never goes to 'sleep' completely. Hence shortened battery life. What about your house key, do you not carry them around either and not lock your house?
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06-10-2013, 02:39 PM	#8
rking117 Lieutenant Colonel 118 Rep 1,668 Posts Drives: Z4 3.0i & 320i Join Date: Aug 2012 Location: USA iTrader: (0)	yes it WILL shorten the life of the battery. likely your CA module wll never power down everything while the keys are in the area. After all that is what CA is for. I wonder if you can have the module either uninstalled or deactivated. That is something i would investigate. __________________ Enjoying an E89 Z4, F30 320i and Fiat Abarth // E85 Z4 (sold), E82 128i (sold), Fiat Pop 500 (sold)
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06-11-2013, 12:01 AM	#10
Lester Brigadier General 295 Rep 3,350 Posts Drives: Join Date: Oct 2007 iTrader: (0)	the batteries are not expensive, they are standard issue. So what if they last a few months shorter. If your car ever did get stolen - then how important is a $2 battery?
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06-11-2013, 01:21 AM	#11
litebulb Captain 68 Rep 627 Posts Drives: '09 E88 135i M-Sport/6MT/SGM Join Date: Feb 2011 Location: Vancouver iTrader: (3) Garage List 2009 BMW 135i Cabri ... [10.00]	Wow a lot of replies I have CA as well and seriously the fob isn't that big or weigh that much. If you are worried about wasting your battery, why don't you leave your key under a rock 5 feet away from your car. Or you could hang it by your house door. __________________ \| Dinan S2=>MHD \| e46 M3 trans mounts \| Dinan CF CAI \| ER CP \| HKS SSQV4 BOV \| RB PCV Valve \| VRSF DP \| N55 MP \| BMW PE \| OC \| VRSF 7" FMIC \| UUC Evo3 SSK \| EBC GD Sport Rotors \| EBC Redstuff \| TRW F+R \| \| Whiteline KDT918 \| H&R Front Sway \| BMWP 313 \| MPSS 225/255 \| Scopione CF Rear Diffuser \| iCarbon CF Rear Spoiler \| P3 v2.1 Gauge \| Interior LED Retrofit \|
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06-11-2013, 10:08 AM	#14
tuco44 Colonel 644 Rep 2,294 Posts Drives: 2018 340i xDrive M Perf Edtn Join Date: Apr 2007 Location: Western Canada iTrader: (0)	Glad I am not the OPs insurance company................... __________________ 2018 340i xDrive M Perf Edtn Sunset Orange Previous BMWs - 19 others since 1971.
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