SL55 AMG, SL63 AMG, SL65 AMG (R230) 2002 - 2011 (2003 US for SL55 and 2004 for the SL65)

SL55/63/65/R230 AMG: Check Key Battery???

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Old Mar 24, 2011 | 10:02 AM
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Check Key Battery???

Hi Guys:

Long time... work/life crazy (but good). Went to start car today and got quick "Check Key Battery" then a "click" sound and then take car to shop warning.

Car does not start. Any suggestions or thoughts????

Thanks,
D-
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Old Mar 24, 2011 | 10:34 AM
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replace your key battery?

i think they all are CR2025
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Old Mar 24, 2011 | 11:30 AM
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Originally Posted by alx
replace your key battery?

i think they all are CR2025
Yup! Easy fix. No reason for a trip to the dealer, unless you want to spen an extra $100!
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Old Mar 24, 2011 | 11:34 AM
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300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
Did

you try your other key?
Then replace the 2 key batteries. pg 389 of your owners manual.
keyless go key? I assume,since the regular ir key does not need a battery to work in the ignition switch.
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Old Mar 24, 2011 | 11:39 AM
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I actually did not try the 2nd key. I was in a rush so I took my wife's X5 since she is out of town. I did nto realize the the failure of key battery would actually prevent the car from starting. Damn - I feel stupid.

THANKS!
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Old Mar 25, 2011 | 09:32 AM
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apparently there is something else wrong... seems like a battery issue - car will not start with either key...
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Old Mar 25, 2011 | 09:40 AM
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Originally Posted by SRQLAW
apparently there is something else wrong... seems like a battery issue - car will not start with either key...
it is possible that your main starting battery (front) is dead. if you have never replaced your battery and your car is an 06- it is about time it died. try to charge the existing one a bit and see if it makes a difference? if it does- you need a new battery. if it doesnt- take it to the dealer as your problem is deeper.
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Old Mar 25, 2011 | 12:09 PM
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I am thinking it is the battery. Oh well... any suggestions on the best battery for this car?
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Old Mar 25, 2011 | 01:28 PM
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Originally Posted by SRQLAW
I am thinking it is the battery. Oh well... any suggestions on the best battery for this car?
do not assume that it is the battery

as i said- charge battery and try to start car. if that does not work- take battery out and bring it to your local auto store- they can test it there. if it is bad- buy another one, if it is good- take car to dealer...

this is what i would do if i dont have the means to troubleshoot and repair car at home
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