What's the Reason for Mercedes-Benz Protection System Failure Preventing Ignition?

[VonFernando]

Here are the possible reasons for Mercedes-Benz protection system failure preventing ignition: 1. First, it could be an electrical or electronic fault: Electrical faults include: blown fuse, open circuit in high-voltage coil, open circuit in low-voltage circuit, detached central ignition wire, distributor rotor leakage, or damaged spark plug. Electronic faults mainly refer to the central computer control board losing functionality. 2. Next, it could be a fuel system fault: Fuel system faults causing engine shutdown often exhibit symptoms like weak engine power and the accelerator pedal feeling like stepping on cotton. Possible locations for fuel system faults include: fuel pump failure, blocked fuel line, clogged fuel filter, carburetor malfunction, or damaged injector. Sometimes, the fuel tank might be empty without the owner realizing it. 3. Finally, it could also be a mechanical fault: Common mechanical faults include: timing belt (chain) breakage, cylinder leakage causing loss of pressure, etc.