My 2001 S430 mercedes Benz with 85.000miles runs and feel like a new car but lately with the weather getting colder the ignition switch don't turn at all...a person told me to use a blowdryer which most of the time works but now since the weather is even colder it is not going to work anymorenow I found out that it might be the relay in the alarm system so if anybody knows anything about that problem please let me know.if I get the car started I can drive it find hours no problems but if the car sits for a long time the problem start again the ignition switch locked again when the car is cold....