Due to wear, high usage vehicles can experience ignition lock and tumbler failures. The ignition lock cylinder will generally require replacement to correct this concern.Google+
Car Problem Reports
Mercedes-Benz C220 High Usage Vehicles May Experience Ignition Lock and Tumbler Failures
Mercedes-Benz C220 Problem
Visitor, 1996 Mercedes-Benz C220, 259,000 mi
Today, May 27, 2012.
I purchased this car Oct 2011 with 20,000 less miles.
This is the 3rd time that the ignition key became "stuck", unable to turn the ignition. This time, I cannot manage to find a way to turn the ignition key to the ON position.
I've tried rocking the car, simultaneously jiggling the key while rocking the locked steering steering wheel counter-clockwise, then clockwise, then counter, then clock, repeat until I am exhausted.
As soon as possible, I'll GO TO MERCEDES and ask them the cost to replace the tumbler matching the existing, same key. I already have an order in for a NEW KEY, factory direct.
I figure I should replace both, the ignition key and the tumblers. They're both probably worn beyond acceptable working condition.
Brian A Everling
Montevallo, AL USA
My car has a security breech, i used a new key and my ignition frooze and when i got it fixed the car will not start, the lights in the rearveiw mirror blinks indication of security problem, i have the remote that came with the vehicle, i took it to Tiffin Ohio the closest Mercedes dealer, they charged me $275 and i still had to pay the tow back home, the car has been setting for almost 1 year.