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What is Mercedes-Benz PRESAFE®?

PRESAFE® Airbag Deployment

When Mercedes-Benz PRESAFE® senses instability associated with an imminent collision or rollover, it springs into action. This system helps prepare the cabin for an impact by closing the windows/sunroof, tightening the front seatbelts, and adjusting the front seats. Most new Mercedes-Benz models come standard with PRESAFE®, making it easy for Atlanta drivers to enjoy the peace of mind it brings. Learn more about the system and how it works below!

How Does the PRESAFE® Mercedes-Benz System Work?

When a potential accident is detected, PRESAFE® takes the following actions to help keep you and your passengers from harm:

  • Adjusts the front head restraints for the best possible protection from injuries.
  • Closes the sunroof to prevent debris from entering the cabin.
  • Increases tension in the front safety belts to ensure they’re secure.

Some of the newer Mercedes-Benz models, such as the E-Class and S-Class, include PRESAFE® Sound. This is an extension of Mercedes-Benz PRESAFE® and emits a “pink noise” via the audio system to help protect your hearing. It activates when the standard PRESAFE® system does.

Mercedes-Benz Models with PRESAFE®

You’ll find the PRESAFE® Mercedes-Benz system on the following models:

Silver 2020 Mercedes-Benz GLC on City Street

What’s the Meaning of “PRESAFE® Functions Limited”?

Is your vehicle displaying the message, “PRESAFE® Functions Limited”? If so, Mercedes-Benz service may be needed to resolve the problem. You’ll see the message on the driver information screen just behind the steering wheel. Typically, this message is caused by a malfunctioning sensor. Schedule a service visit at RBM of Alpharetta and one of our technicians will complete an inspection to find the root of the problem.

Learn More About Mercedes-Benz Safety at RBM of Alpharetta!

Ready to try out Mercedes-Benz PRESAFE® for yourself? Contact us at RBM of Alpharetta to schedule a test drive in a model like the C-Class, which boasts PRESAFE® in the standard tech suite, near Cumming and Johns Creek! We can also answer any questions you may have about other Mercedes-Benz safety systems and technology, such as DISTRONIC PLUS®, Mercedes-Benzmbrace®, and ATTENTION ASSIST®.


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345 McFarland Parkway • Alpharetta, GA 30004

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  • Monday - Friday: 9:00 AM - 7:00 PM
  • Saturday: 9:00 AM - 6:00 PM
  • Sunday: Closed
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  • Saturday: 8:00 AM - 4:00 PM
  • Sunday: Closed
RBM of Alpharetta 34.1357528, -84.2404739.