L-A- Law - 1986 F-O-B- 7-15 was released on:
USA: 1 April 1993
Put the key in the ignition and turn the key 2 clicks to the On position and press and release the lock button on the fob. Then press and hold the unlock button on the fob 5 times and then release. This will reset the fob for your Mercedes.
History Detectives - 2003 Psychophone War Dog Letter Pancho Villa Watch Fob 7-1 was released on: USA: 22 June 2009
Take the metal key out of the fob and use it to press the button inside the key fob. That should release both side and enable you to open the key fob to change the batteries
Usually the key FOB has a trunk latch, but if the battery runs out or you don't have a key FOB, check next to the drivers door, next to the gas release lever, there should be a trunk release lever.
No there is not just on the key fob or using the key only
Free On Board (FOB)
1 Insert the key into the ignition. 2 Press and hold the "LOCK" button on the key fob. 3 Remove the key from the ignition. Keep the "LOCK" button held down while removing it. 4 Press and release the "UNLOCK" button five times. 5 Release the "LOCK" button. The fob is reset.
To reset the key fob for a Mercedes-Benz C240, first, insert the key into the ignition and turn it to the "On" position without starting the engine. Then, press and hold the "Unlock" button on the key fob for about 10 seconds. After this, release the button and turn the key back to the "Off" position. Finally, test the key fob to ensure it is functioning properly.
To change the battery in an XLR key fob, first locate the small release tab or notch on the side or back of the fob. Use a flathead screwdriver or a similar tool to gently pry open the fob, taking care not to damage it. Once open, remove the old battery, noting its orientation, and replace it with a new one of the same type. Finally, snap the fob back together securely.
To reset the key fob for a 2000 Mercedes S430, first, insert the key into the ignition and turn it to the "On" position without starting the engine. Press and hold the unlock button on the key fob for about five seconds, then release it. Next, press the lock button while continuing to hold the unlock button for another five seconds, then release both buttons. Finally, test the key fob to ensure it is functioning properly.
fob
I have a Toyota, and my key fob light stayed on also. I called the dealer, and they said the button on the fob was stuck down INSIDE the fob. So, I simply unscrewed the screw on the back of the fob, opened the fob, then put it back together. The fob was fixed. I didn't have to fix anything in the fob.