Key Fob Battery
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Joined: Jan 2011
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From: Nashville
2017 S550 Iridium / Black Nappa, 2015 GL 550 Paladium Silver
Key Fob Battery
I've had my car for 9 months now and both key fobs have low batteries - or at least thats what the system is telling me. That said I can easily lock / unlock from 30+ feet with the remote. The warning will come on and will not clear for a week or so at a time and then it will suddenly go away to return a few days later.
I typically keep my key fob in the console (push to start / keyless entry) when parked in the garage. Does the system then constantly pull signal from the remote when in proximity of the car? They may have just had weak batteries to begin with but seems odd and wondered if keeping keys with the car overnight might have something to do with it.
Replacing the batteries this afternoon in both remotes and would prefer to have them last longer than 6-8 months.
I typically keep my key fob in the console (push to start / keyless entry) when parked in the garage. Does the system then constantly pull signal from the remote when in proximity of the car? They may have just had weak batteries to begin with but seems odd and wondered if keeping keys with the car overnight might have something to do with it.
Replacing the batteries this afternoon in both remotes and would prefer to have them last longer than 6-8 months.
Last edited by Pntblnk; Oct 9, 2011 at 12:52 PM.
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From: Connecticut
2018 BMW 540d
I've had my care for 9 months now and both key fobs have low batteries - or at least thats what the system is telling me. That said I can easily lock / unlock from 30+ feet with the remote. The warning will come on and will not clear for a week or so at a time and then it will suddenly go away to return a few days later.
I typically keep my key fob in the console (push to start / keyless entry) when parked in the garage. Does the system then constantly pull signal from the remote when in proximity of the car? They may have just had weak batteries to begin with but seems odd and wondered if keeping keys with the car overnight might have something to do with it.
Replacing the batteries this afternoon in both remotes and would prefer to have them last longer than 6-8 months.
I typically keep my key fob in the console (push to start / keyless entry) when parked in the garage. Does the system then constantly pull signal from the remote when in proximity of the car? They may have just had weak batteries to begin with but seems odd and wondered if keeping keys with the car overnight might have something to do with it.
Replacing the batteries this afternoon in both remotes and would prefer to have them last longer than 6-8 months.
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Joined: Jul 2010
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2012 CLS63
I think it's leaving it in the car....they talk to each other and that'll wear your battery down I think......
but I may be wrong......
but I keep mine in my house and have never even thought twice about this concern.....
let us know what you find
but I may be wrong......
but I keep mine in my house and have never even thought twice about this concern.....
let us know what you find
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1953 300 Adenauer, 1971 300 SEL 6.3, 1975 600, 1978 450 6.9
Aside from the electronic problems caused by leaving the key in the car, you are also risking your insurance coverage.
Should the car be stolen, your insurance may not pay as you left the car unlocked with the 'key in ignition' (keyless go and key present)
There have been several court cases showing that a closed garage door in not sufficient to protect your car for insurance purposes.
Should the car be stolen, your insurance may not pay as you left the car unlocked with the 'key in ignition' (keyless go and key present)
There have been several court cases showing that a closed garage door in not sufficient to protect your car for insurance purposes.
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Joined: Jan 2011
Posts: 597
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From: Nashville
2017 S550 Iridium / Black Nappa, 2015 GL 550 Paladium Silver
You are all right for a number of reasons. Have lived in a gated communities for the past 5 years and probably have a false sense of safety / protection.
I changed out the batteries this morning and will keep the key fob out of the car when not running to see how that works.
I changed out the batteries this morning and will keep the key fob out of the car when not running to see how that works.
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1953 300 Adenauer, 1971 300 SEL 6.3, 1975 600, 1978 450 6.9
There are a few reasons for short battery life:
Pressing on something while in your pocket
Old batteries
Heat/Cold - especially when left in car
