How To Open Mercedes Key Fob 2010. Touching the door handle or pressing the black lock button on the door handle is is a function of keylessgo. Turn the key until you hear the trunk pop open.
The unlock button is located on the inside of the drivers side door. Stick your key horizontally into the open slot. The key fob needs to be syncronised to the car.try this it works for many mercs1.ensure the battery in the key fob is ok.press either lock or unlock button for more than 1 second, the lamp on the fob will light if ok.
If you have no light you have no ir from the key.
Instead, use the positive jumper starter terminal located in the jumper cable. With the key in the ‘on’ position, press the fob’s lock button and turn the key back to the ‘off’ position. However, if this is the case, your key should still be able to start the car. Hit all those points with a solder gun, you may not even need to add solder, just a matter of reheating a solder joint that may be cracked to repair a.