Mercedes W221 S-Class Steering Lock Actuator Fault
Mercedes-Benz
S-Class
2005
All
Safe to Drive?
🚫 Do NOT Drive
Urgency Level
🟠 Fix Soon
The electronic steering column lock on W221 S-Class fails, leaving the car unable to start. The ignition turns but the steering lock does not disengage. The EIS (Electronic Ignition Switch) and ELV (Electronic Steering Lock) are integrated in the column. Repair requires Mercedes diagnostic software and replacement of the ELV unit, costing £400-800.
Repair / Solution
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