High Usage Vehicles May Experience Ignition Lock and Tumbler Failures on Mercedes-Benz 300E

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.

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Average mileage: 166,968 (102,000–194,872)
4 model years affected: 1990, 1991, 1992, 1993
10 people reported this problem
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problem details
1993 Mercedes-Benz 300E 102,000 mi,
Still trying to get ignition apart; key broke off! Lock cylinder spins around about 270 degrees but doesn't stop in the right spot to undo the cylinder lock! Now I know why I prefer BMW's! Removed assembly from another MB to use as a test fixture to get mine apart.
1992 Mercedes-Benz 300E 194,872 mi,
Can't get key to turn to unlock steering and shifter.
1993 Mercedes-Benz 300E 191,000 mi,
replacing ignition lock cylinder