Question about 2007 Mercedes-Benz ML320 CDI
If I reset again it will only allow one function and then stop working again.
Posted by Anonymous on
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Posted on Jan 02, 2017
Hi! Sounds like the key needs to be coded again, take all relvant details i.e. chassis vin number, Registration document (Title) and key to your local Mercedes Dealership and hopefully they'll rec-code it for youor replace it.
Good Luck and a Happy New Year to You and your family.
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Posted on Dec 29, 2008
SOURCE: mercedes 1999 c200 key fob
Could it be the key just needs re-coding? maybe you are worrying to much as £177 would be about right as that would need coding etc., Try phoning your local Merc dealer or take the key and V5 to them for coding (Hopefully)
Posted on Jan 06, 2009
Hi, it’s pretty difficult to
lose a part of the circuit as you describe. So assuming that you have placed
new fresh batteries correctly in the key – making sure that the polarity is
correct! (easy to get wrong!) the key will need to be synchronised to the cars ignition
/ management system. You don’t say which model or year your Merc is, but most
have a similar way of re – synchronising the Key to the car. It’s pretty easy
and you lose nothing by trying it anyway.
Synchronising the locking system
If the vehicle cannot be locked or unlocked, first check the remote control unit batteries (see below). If the battery charge indicator lamp lights up, this means the system needs to be synchronised.
To do this, direct the remote control unit at the car and briefly press the Lock or Unlock button twice. Within approximately 30 seconds, put the key in the ignition lock and turn the key to position 2. The locking system should now be operative.
Press either the Lock or Unlock button and hold for longer than one second. The light on the key lights up briefly if the battery is OK. if it does not light up, replace the batteries immediately. Mercedes will charge a small fortune for these, so try elsewhere, they are pretty common and will cost substantially less.
If re – synchronising the Key fails to solve the problem, check that the Central locking fuse in the cars main fuse box is OK.
Hope this solves the problem – Let me know? Good luck!
Posted on Jul 08, 2009
This can not be reset by conventional methods. This must be done through a scan tool. Usually only the dealer scan tool will communicate with the SRS module. If the SRS light is on you have other issues and they must be remedied before the light will go out. There is no way of knowing what the issue is without running codes with the scan tool.
Posted on Feb 10, 2010
Tips for a great answer:
Apr 08, 2014 | Mercedes-Benz C-Class Cars & Trucks
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
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