Easy! Just shove it up your a$$!
http://www.installuniversity.com/mb/w203/w203/fp.html
under the rear seat try the fuel pump relay first, in the boot in the fuse fuse box top one or first one
http://www.installuniversity.com/mb/w203/w203/ps.html
I have a problem with my Mercedes Benz s350 2002 which the shass number of the Benz is 2200671a384480 and the engine number is vq30989871a.The problem is After i replace the battery with new one the key is not shocking again and i think it security problem.and i don't receive any information about the motor again when the key is not shock and it does not enter the motor again please explain the solution to me
Look up your local MB dealer and phone them and as what documents you need to bring in to get a replacement key. If it is an infra red key they should be able to program it while you wait. Also you should be able to get the newer chrome trimmed key.
how do you program key
Timing Chain
I have a 1997 SL320 with the single button key. i got this key from the dealer .said i don't have to do anything .when i got home i try the key .the car will start but the door lock will not open or closed with remote control..i call the dealer they said that will be a extra ..
Take your key to a Mercedes Benz dealership with proof of ownership of the vehicle (the Title or Registration papers) and a picture I.D. (showing who you are) preferably your driver's license. They won't work on the smart key unless they know that you are the owner of the vehicle and can prove you are who you say you are.
about 300
At the Mercedes Benz dealership