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How does Mercedes' Pre-Safe system work?

Model: Mercedes Mercedes Various
Part: Onboard computer

Video tutorial

On many Mercedes vehicles, a device called "Pre-Safe" is installed, which constantly monitors driving conditions, such as speed, distance from other vehicles, or steering angle. If the system detects a high risk of collision, it activates preventively, implementing a series of measures to protect the occupants: it closes the windows, tightens the seat belts, finds the optimal seat positions, preloads the brakes, gives audible and visual warnings to alert the driver of the danger, and in some vehicles the system signals to following vehicles the danger of an imminent rear-end collision with a rapid flashing of the hazard lights.


Posted on 6 March 2025 by ScegliAuto


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How to Reset the Tire Pressure Light on a MG ZS?

On the instrument cluster of the MG ZS, the tire pressure light that appears can be reset by inflating the tires to the correct pressure: this value will be indicated on the sticker attached to the driver's door pillar. Once the tires have been properly inflated, you can turn on the instrument cluster and navigate through the menu until you find the option that indicates tire pressure: if this screen shows the new values, the light will turn off; otherwise, you will need to drive for a few miles so that the sensors can read the new values and turn off the light afterward.

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