Question about 2007 Mercedes-Benz S550 Sedan

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Cost to replace 2007 s550 key fob

Dropped it in dish water

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Far that car maybe $100.00

Ask or call the dealer parts dept

Posted on Mar 19, 2014


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Posted on Jan 02, 2017

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SOURCE: lost my keys to 2007 s550

you have two choices #1 is contact a locksmith or go to your nearest mercedes dealer prove your the owner and they can cut you a new one

Posted on Mar 04, 2010

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SOURCE: 2007 mercedes s550 turn key nothing happen new


Do you have another key?

If yes, try with another key.

If the same problem persists with the new key, its unlikely to be a key issue. The starter system is fairly complex & needs diagnosing on a diagnostic tool such as Mercedes STAR diagnosis.

The EIS (Electronic Ignition Switch) reads the key information & sends a signal to the engine ECU to start (assuming it recognizes the correct key), the ECU then sends a signal to the starter to start the engine. The problem could be anywhere in between these components.

The EIS is a fairly common part for failure but this needs to be checked for fault codes & actual value readings to check the status of the switch.

I would take it back to the dealer for them to investigate as soon as possible as there is a chance it could fail completely leaving you in a stranded situation.

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Jan 11, 2011

  • 4525 Answers

SOURCE: inition key will not turn on 2007 S550

is it the rite key--or maybe the chip is bad--or the switch itself has issues

Posted on Sep 30, 2012

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