Mercedes-Benz ignition switch (often referred as immobilizer module) can become faulty and in some cases due to user error. Unable To Turn The Key, Unable To Start The Car.Key may turn, but the instrument cluster lights don’t turn on.Key does not turn in the ignition due to failed EIS.Possible symptoms of a failed Mercedes-Benz include: This problem can affect various Mercedes-Benz models including E-Class, S-Class, C-Class, CLK-Class, ML-Class, SL-Class, etc.
Mercedes Benz owners sometime face the problem where their key will not turn or even if it turns, the car does not turn over or start. This issue is often caused either by a defective key, bad shifter module, a failed Electronic Ignition Switch (EIS) also known as the EIS-EZS or a bad steering lock module (ESL).
