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How do you reset the message "Pre-safe functions limited" in Mercedes vehicles?

Model: Mercedes Mercedes Various
Part: Checks and maintenance

The protection system mentioned above manages the deployment of airbags, all based on detecting a certain braking force in case of emergency, as well as intervening in the event of a collision. If we read the message of limited function on the computer, probably due to a temporary error, once it is confirmed that everything is in order, a reset must be carried out. To do this, it is necessary, as explained in the video tutorial here, to connect a diagnostic tool to the car, configure the vehicle model, search for the error and initiate its deletion.

Posted on 28 September 2025 by ScegliAuto

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How to Remove the Front Bumper of the Citroën C4 Picasso?

To remove the front bumper of the Citroën C4 Picasso, you need to take out all the rivets and screws that secure the piece to its housing: these screws are located inside the wheel arches of the front wheels and at the central upper part of the bumper itself. Once all these fastening elements have been removed, you can detach the bumper from its seat by disconnecting the connectors inside and then insert the new replacement part. The new part can then be secured and connected properly, ensuring it is correctly fixed in place.

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