???What Year 140
I'm not entirely clear as to what year car you have. If it is one of the later W140s--I'm not sure when the later remotes began, but I'm sure about the 98-99s, have you first attempted to synchronize the system with the key that doesn't work. Mine was dead and I was about to tear it apart and work on it. I then noted at page 132 of the owners manual for my 99, the following:
"To synchronize system, aim transmitter eye at vehicle and press transmitter button (either the lock or unlock button) twice. Within approx. 30 seconds, insert key in steering lock and turn it to position 2. The remote control should once again be operational."
I did that and it worked fine.
If that doesn't work, go ahead and tear them apart.
Good luck,
Telechronos
1999 S500 Grand Edition
1984 380 SL
1987 BMW L7
1955 Mg TF1500
1969 Factory Stick, Tri-power, Pontiac Grand Prix SJ
I'm not entirely clear as to what year car you have. If it is one of the later W140s--I'm not sure when the later remotes began, but I'm sure about the 98-99s, have you first attempted to synchronize the system with the key that doesn't work. Mine was dead and I was about to tear it apart and work on it. I then noted at page 132 of the owners manual for my 99, the following:
"To synchronize system, aim transmitter eye at vehicle and press transmitter button (either the lock or unlock button) twice. Within approx. 30 seconds, insert key in steering lock and turn it to position 2. The remote control should once again be operational."
I did that and it worked fine.
If that doesn't work, go ahead and tear them apart.
Good luck,
Telechronos
1999 S500 Grand Edition
1984 380 SL
1987 BMW L7
1955 Mg TF1500
1969 Factory Stick, Tri-power, Pontiac Grand Prix SJ
