This just happened to my 96 C220. It was hanging up a bit this week and all of sudden the key would not turn. Steering wheel is laso in the lock position. I also ended up chatting with the MB technician who called me after I called roadside assistance.

He suggested spraying it with graphite and/or lubricant - which I did. I wiggled the steering wheel and tried turning but no dice.

How did yours work out (back in 05)

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the sooner you start... the sooner you'll get done If it ain't broke, don't fix it.. Its always simpler to tell the truth...
2007 Honda Accord EX
2007 Honda Accord SE V6
96 C220
97 Explorer - Found Another Home
2000 Honda Accord V6 - Found Another Home
85 300D - Found Another Home
84 300D - Found Another Home
80 300TD - Found Another Home
Previous cars:
96 Caravan
87 Camry
84 Cressida
82 Vanagon
80 Fiesta
78 Nova
Ford Cortina
Opel Kadet
68 Kombi
Contessa