Mercedes-Benz S550 ignition issue with no response when turning the key on Mercedes-Benz S550

Some Mercedes-Benz S550 owners report experiencing ignition issues, such as having no response when turning the key. Common problems include a binding steering column or lock, a faulty ignition switch, or a defective Electronic Ignition Switch (EIS). Owners may find that a defective key or issues with the Electronic Steering Lock (ESL) contribute to the problem. Symptoms often include the key not turning due to a failed EIS, particularly in cold weather, or the engine failing to crank despite the key being turned. It is essential for owners to differentiate between a lack of engine cranking and the engine cranking but not starting to diagnose the issue accurately. If these problems persist, seeking professional assistance from a qualified mechanic or dealership is recommended for resolution.