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Sorry that I didn’t take picture of the spring and the pivoting button….but it should be straight forward
when you play with the new key case to see how it’s installed, and you reinstall it the same way.
You have to make sure that the spring is loaded when in “docking” position along the side of the case, so
that the key will pop out when the button is released.
Please note the slots on the button and key case then you will be fine the.
Note how the buttons line up nicely with the centers of the holes.
Carefully press the two halves together then put back the covers (keypads) for the buttons – note
smalls holes –these are the mounting holes for the key pad .
Install the batteries… you might want to get new batteries as well. The original 2025 batteries are a bit
loose, so extra piece of paper to make fit in better and to have better electrical contact. I plan to use 2
2032 instead and get rid of the piece of the paper.
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Here is the pic after you close the battery cover.
You might need to resync the key, check the user manual of your car for the procedure how to do it.
But for ML350 (2003), plug in the key, turn to position 2, then turn back to position 0, remove the key.
Within 10sec, press the lock button and hold it down, at the same time press the unlock button 5 times.
Then release both lock and unlock button. Then press any button once: either lock, unlock or the truck
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