how to change battery 99 s Class
 

How do you change battery or disconect battery on my car?Will it lose program and car won't start?Or is the radio code the only thing that it loses?
I wonder as before next winter I want top put a new battery in the car.She started slow at 0 degrees.I have heard bad things happen when you disconnect battery.

You will have to recode the radio, set clock, & re sync the windows.

I always use light gauge jumper wires & battery to hold the memory.
Connect jumper before disconnecting old battery.

M.B.Doc you are the most helpful person on the forum.I double thank you for answering my question,and so many others.