Question about 2005 Mercedes-Benz ML 350

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Reset mercedes key

Reset remote entry key for 2005 Mercedes ml350? My key fob will no longer open the doors. One day it just stopped working. Had batteries checked in key and they are fine. How do I correct this problem and reprogram/reset the remote?

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Jay Drogsvold

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  • 91 Answers

MANY are connected to the drivers door lock, using the key , turn it to the left pause turn it to the right pause... do this twice...

Posted on Jul 22, 2014


5 Related Answers


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SOURCE: how can i reprogram a mercedes slk r170 key fob to

If it is a new key or replacement only the dealer can do it. if it is one of the original keys that stopped working then place it in the ignition and press the lock button 5 times in about 5 seconds, then press and hold down the unlock button. Withdraw the key and try it.

Posted on Feb 03, 2011



  • 2 Answers

SOURCE: keyless reprogram

resychronizing the key works.

1. Insert key into ignition and turn to
position 2.
2. Remove key and hold down lock button
while pushing unlock button five times.
3. Release all buttons, then push either lock or
unlock button.
!!!!!!!!!!!!!Procedure must be completed within10

Posted on Jan 11, 2009


  • 2 Answers

SOURCE: how to reprogram 1999 mercedes s320 key remote?

just insert the key to the ignition swich and leave it for one minute, it will work for sure.

Posted on Mar 08, 2009

Joe Hogan

  • 10865 Answers

SOURCE: can you reprogram another key fob for mercedes e

yes. you can program any number. put the key in the ignition push the lock button on your keyfob, pull th key out while holding down the lock button and press the unlock button 5 times. Your key is now reset and ready for use

Posted on Aug 22, 2010

Matthew Prosser

  • 89 Answers

SOURCE: The remote key does not work on my 1999 Mercedes

Remove the postive cable from the battery (makeing sure that all gps ect have been unpluged) touch it to the negtive for 20 sec leaveing the neg hooked to the battery draining all power from the computer, them hook it back up. If this doesnt reset it find a loksmith shop that deals in transponder keys to help or at least point you to a shop that can help..
Hope it wors out for you!

Posted on Oct 21, 2010

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  • Reset your Mercedes-Benz key by placing the key in the ignition of your vehicle while the vehicle is turned off. Do not turn on the vehicle. Press a finger on the "lock" button of your key fob while the key is in the Mercedes' ignition.

  • Pull the key out of the ignition while continuing to hold the "lock" button down. Continue to hold the "lock" button for the duration of the key resetting process

  • Use another finger to push down on the "unlock" button five consecutive times. Keep holding down the "lock" button.

  • Release the "lock" button. This is the end of the resetting process for your Mercedes-Benz. Use your key fob to ensure it is properly working

  • Read more: How to Reset a Mercedes Key '

  • Read more: How to Reset a Mercedes Key '

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