What does it mean when a Mercedes-Benz displays a power steering malfunction?

[DeDylan]

Here are the reasons why a Mercedes-Benz may display a power steering malfunction: 1. Fault: Power steering pump failure. 2. Air in the system: Lack of oil, obstructed oil passages, or air in the oil lines. 3. Power assistance failure: Loss of pressure, electromagnetic valve not receiving power, torque sensor failure, and other forms of power assistance failure. Below is additional information about Mercedes-Benz: 1. Mercedes-Benz SAM: The control unit, also known as the Signal Acquisition and Actuation Module. If the SAM malfunctions, components such as headlights, turn signals, and windshield wipers cannot be controlled while driving, posing a safety hazard. 2. Mercedes-Benz: A German automotive brand, considered one of the most successful premium car brands in the world. It is renowned for its perfect technical standards, rigorous quality benchmarks, innovative capabilities, and a series of classic coupe models. The Mercedes-Benz three-pointed star is one of the most famous automotive and brand logos globally. Mercedes-Benz cars not only boast unparalleled quality but also offer a comprehensive range of models, currently producing mainly A-Class (compact cars), C-Class (mid-range sedans and coupes), E-Class (high-end sedans and coupes), S-Class (luxury sedans and coupes), and G-Class (SUV off-road vehicles).

[ElliottMarie]

The other day I was driving my Mercedes-Benz C-Class when this warning popped up, and suddenly the steering wheel became extremely stiff. The dealership found it was a faulty torque sensor, which detects how hard you're turning the wheel. The mechanic explained that Mercedes uses an electric power steering system that heavily relies on sensor data—if it's inaccurate or has poor wiring contact, the car's computer immediately flags an error. They also checked the power steering motor and fuses, luckily it was just a loose sensor connector. If this happens, never force it, especially when parking—the wheel can become too heavy to turn. Best to call a tow truck. Mercedes' electronic systems are complex, small repair shops might not diagnose the root issue.