I just had a Key programmed and I was wondering how long should it be before the key pairs with the car 2002 s500
MercedesMedic 1 year 1 month ago
Technically the key will work as soon as you plug it into the igntion. With that said, I did have a W220 that took several hours for the key to work.
Connect a charger and let the key in the igntion overnight.
Do you get any specfic error messages on the dashboard.