S 500 Coupe (140.070) V8-5.0L (119.980) (1997)
Ignition Lock: Service Precautions
When the steering lock is installed on the steering column with the lock cylinder removed, DO NOT turn the mechanism.
Doing so will allow a built-in lockout (anti-theft protection) to engage.
The steering lock cannot be unlocked when installed to the column, the steering lock will be damaged beyond repair if this is attempted.