E-Class (W211) 2003-2009

Key Fob Not Working Alarm Going Off

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Old 10-09-2018, 01:29 PM
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2005 MErcedes E500 $ Matic
Key Fob Not Working Alarm Going Off

2005 Mercedes E500 4 Matic

I locked my car went into the store and when I came back out the key fob would not unlock my car I used key inside fob to unlock door and it made car alarm keep going off and none of the lights locks or windows worked in the car only the radio so i went and got spare key and it started right up then worked fine.. is it something as simple as a dead fob battery?

thanks
Old 10-11-2018, 12:35 PM
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2006 E320 CDI
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Last edited by ot1; 10-11-2018 at 12:39 PM.
Old 10-11-2018, 12:37 PM
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2006 E320 CDI
Originally Posted by E5ZeroZero
2005 Mercedes E500 4 Matic

I locked my car went into the store and when I came back out the key fob would not unlock my car I used key inside fob to unlock door and it made car alarm keep going off and none of the lights locks or windows worked in the car only the radio so i went and got spare key and it started right up then worked fine.. is it something as simple as a dead fob battery?

thanks
i dont have the chrome FOB, but on the black one there is a red LED that is suppose to lite whenevev you press a button. No lite dead batteries, 2x 2025

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