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Replacing the key battery

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Old 11-17-2008, 10:22 PM
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Replacing the key battery
Hi All,
I have a 2007 S550 launch edition. I just started getting a "replace key battery" message on start up. Is this something that I can do myself or is it a dealer job?

Thanks
Jan
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Old 11-17-2008, 10:27 PM
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Most definitely do it yourself. You can get the batteries at wal-mart. A pocket knife blade will help you pry open the key battery compartment.
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Old 11-17-2008, 10:48 PM
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The user manual describes how the battery should be changed. This also confirms that the owner at least can if not should replace the battery himself/herself.
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Old 11-17-2008, 11:08 PM
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Dealers usually charge $20 USD to replace the key battery
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Old 11-19-2008, 02:15 AM
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wal mart wont change them for you. If $20 isnt a big deal to you take it to the parts dept.
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