Removing The Battery-Bad Idea?
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From: Connecticut
2018 BMW 540d
Removing The Battery-Bad Idea?
I'm going to be away for over a month (January/February) and am considering the above action in order a) to avoid theft and b) to place the battery indoors hooked up to a trickle charger.I know that doing so will require a "reprograming" of the central computer...transmission,etc...and I'll lose seat settings,radio settings,etc.But am I missing something important,or even semi-important? For example,will the music stored on the hard drive disappear? TIA!
Last edited by listerone; Jan 1, 2013 at 09:34 PM.
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From: Central Pennsylvania
2012 S350 Bluetec 4Matic, Diamond White, P2
You do not have to remove the battery to trickle charge it. Just follow the instructions in the owners manual and use the jump start connections. Also, make sure you use a charger that is compatible with AGM/VRLA batteries.
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What I failed to make clear is that I don't have access to a garage or an electrical outlet....I live in a condo.The trickle charger I have is an official BMW charger which,I read,is suited for AGM batteries.
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2010 E550, 273 Engine: 2012 S550, 278 Engine
I'm going to be away for over a month (January/February) and am considering the above action in order a) to avoid theft and b) to place the battery indoors hooked up to a trickle charger.I know that doing so will require a "reprograming" of the central computer...transmission,etc...and I'll lose seat settings,radio settings,etc.But am I missing something important,or even semi-important? For example,will the music stored on the hard drive disappear? TIA!
Other than to prevent the theft battery removal is unnecessary. It will not go down in a month, probably not in two months and removing it for long time will certainly cost extra to get the car running again. And if it goes down too much to start the car again it is just a simple jump procedure to get it going again.
Music on the HDD should not be lost.
For preventing the theft, couldn't you just boot the car?
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MY17 E43 Matte Selenite/Macchiato Beige, MY16 GLE350d Tenorite/Crystal Grey, MY17 B250
I'd rather come home to a missing car than a car that was smashed up but still sitting there! It's tough to steal a Benz these days short of flatbedding it or obtaining the keys.
Worse would be throwing out your back trying to get the battery out!
Worse would be throwing out your back trying to get the battery out!
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From: England
Mercedes E350 CD Iridium silver convertible 2010
Hi ! If it is the Ctek battery charger(BMW own brand them) then it is an intelligent battery charger and is suitable for AGM batteries, as many BMW's have these types of battery including my last 6 series!!!!
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2022 E450 Prior:2021 S580 2012 E350BT, 2013 GL350BT, 2009 ML320BT, 2006 E320CDI, 1987 260E
I really wouldn't worry too much. My mother has a 2004 CLK she has left 3 months (unplanned extended overseas trip) and it started right up, even with an 8 year old battery. I think you may cause more issues than you are avoiding.
Other option, find a board member in the CT area to drive it for you
Other option, find a board member in the CT area to drive it for you
Thread Starter
MBWorld Fanatic!
Joined: Dec 2009
Posts: 1,121
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From: Connecticut
2018 BMW 540d
Thread Starter
MBWorld Fanatic!
Joined: Dec 2009
Posts: 1,121
Likes: 12
From: Connecticut
2018 BMW 540d
at a BMW dealership.Too bad this charger can't be the solution to my situation.
Thread Starter
MBWorld Fanatic!
Joined: Dec 2009
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From: Connecticut
2018 BMW 540d
Thanks much to all who replied. I think I'll just keep the battery hooked up and hope a) that the battery survives and b) that mBrace does,in fact,notify me if any attempt is made to steal the vehicle.It's worked in the past when I accidentally set off the alarm system so it probably would do so again.
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From: Central Pennsylvania
2012 S350 Bluetec 4Matic, Diamond White, P2
The battery in the E350 Bluetec is not a true AGM. It is actually a Valve Regulated Lead Acid battery (VRLA). It does take the same charge cycle as an AGM battery would.
