How long does your Comfort Access battery last?

username604 · 11-25-2011, 10:46 AM

I'm going to pick up a fresh set today, and I'm wondering how long the comfort access batteries have lasted you guys.

ctuna · 11-25-2011, 10:54 AM

They are only 3 bucks . My guess would be 3 years until they get a little weak.
Probably 5 years to go dead.

username604 · 11-25-2011, 11:00 AM

Quote:

Originally Posted by ctuna

They are only 3 bucks . My guess would be 3 years until they get a little weak.
Probably 5 years to go dead.

damn! i bought a pair at walmart for $10 and they lasted 2 months. the jewelry lady pulled them out of a drawer. My guess is that they were quite old

kelvin2010 · 11-25-2011, 03:33 PM

I don't know why, I got my CA battery replaced from the BMW dealer, then the CA worked perfectly for few days.
After few days, it started to being not sensitive as before...
I hate pulling the door handle on the street but the door doesn't unlock, that make me look like an idiot....So, I just gave up, use my key every time....

kelvin2010 · 11-25-2011, 10:09 PM

Quote:

Originally Posted by 335coupe2007

it should last approx 3 years with normal usage.. i had mine supposebly replaced by the bmw dealer also and it worked for a few days then it was back to the B.S..... i said screw it and replaced it myself and it was ALL good ever since. Who knows if they actually replaced it or what.

Really?

So after you replace your battery by yourself, it works perfectly?
Where do you guys get the battery??

vzehler · 11-25-2011, 11:42 PM

Quote:

Originally Posted by kelvin2010

Really?

So after you replace your battery by yourself, it works perfectly?
Where do you guys get the battery??

Its a CR2032 watch battery. You can find them just about anywhere that sells watches.

pwrdbynel · 11-26-2011, 03:58 AM

Mine lasted about 3.5 years and I just bought a new one from radio shack for about $5. No issues so far.

John 070 · 11-26-2011, 06:53 AM

I dunno why but 2-3 years is about right. But once I put in a new battery prior to dropping off my car, and when I got it back, it had a low batt icon. I've learned with BMW, don't question everything that goes wrong with it, so just keep a tupac of 2032's on hand and if your CA acts up, just replace the fob batt.

Daya · 11-26-2011, 11:46 AM

Have had car for 4.5 years and I have replaced battery twice, so 2-3 years sounds about right

username604 · 11-26-2011, 01:34 PM

Quote:

Originally Posted by kelvin2010

Really?

So after you replace your battery by yourself, it works perfectly?
Where do you guys get the battery??

yeah just make sure wherever you buy it from has them in good stock. officedepot had a shelf just for coin cells, and this new one seems good to go!

raleedy · 11-27-2011, 11:53 AM

Had both batteries replaced free by dealer after about 3 years under the 4-year free maintenance program.

11-25-2011, 10:46 AM	#1
username604 Colonel 137 Rep 2,554 Posts Drives: bmw Join Date: Sep 2010 Location: repair shop iTrader: (0) Garage List 2008 BMW 335i [10.00]	How long does your Comfort Access battery last? I'm going to pick up a fresh set today, and I'm wondering how long the comfort access batteries have lasted you guys.
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11-25-2011, 10:54 AM	#2
ctuna Lieutenant General 2452 Rep 14,108 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	You can get them at any drug store They are only 3 bucks . My guess would be 3 years until they get a little weak. Probably 5 years to go dead.
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11-25-2011, 03:33 PM	#4
kelvin2010 Lieutenant 35 Rep 497 Posts Drives: E92 335i, E82 1M Join Date: Nov 2010 Location: Oregon iTrader: (8)	I don't know why, I got my CA battery replaced from the BMW dealer, then the CA worked perfectly for few days. After few days, it started to being not sensitive as before... I hate pulling the door handle on the street but the door doesn't unlock, that make me look like an idiot....So, I just gave up, use my key every time....
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11-26-2011, 03:58 AM	#7
pwrdbynel Private First Class 14 Rep 197 Posts Drives: 335i Coupe Join Date: Apr 2008 Location: SoCal iTrader: (1)	Mine lasted about 3.5 years and I just bought a new one from radio shack for about $5. No issues so far.
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11-26-2011, 06:53 AM	#8
John 070 Lieutenant General 1907 Rep 14,868 Posts Drives: 335i cpe Join Date: Oct 2006 Location: ZSP/ZPP/ZCW iTrader: (0)	I dunno why but 2-3 years is about right. But once I put in a new battery prior to dropping off my car, and when I got it back, it had a low batt icon. I've learned with BMW, don't question everything that goes wrong with it, so just keep a tupac of 2032's on hand and if your CA acts up, just replace the fob batt.
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11-26-2011, 11:46 AM	#9
Daya Lieutenant Colonel 222 Rep 1,741 Posts Drives: e92 335 space gray/coral red Join Date: Sep 2006 Location: Chicago iTrader: (1) Garage List 2007 E92 335 [9.66]	Have had car for 4.5 years and I have replaced battery twice, so 2-3 years sounds about right __________________ GIAC S2 \| Brembo GT BBK 355/345 \| BBS CH-R \| Michelin Pilot Super Sports \| AR Design: DP, S1 Oil Cooler, OCC \| AMS FMIC \| Bastuck Quad Exhaust \| Borla MP \| KW V1 \| Stett: CAI, CP \| Forge DV \| P3 Boost Gauge \| Arkym: Front Lip, Rear Quad Diffuser \| Vorsteiner CSL Trunk \| LUX H8 \| ModMyNav \| MFD M3 Sideskirts \| BMW M-Tech Front/Rear Bumpers, Edition Grills
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11-27-2011, 11:53 AM	#11
raleedy Colonel 163 Rep 2,248 Posts Drives: 2016 228i 6-speed Join Date: Jul 2005 Location: Portland, Oregon iTrader: (0)	Had both batteries replaced free by dealer after about 3 years under the 4-year free maintenance program.
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