SmartKey

Display messages Possible causes/consequences and Solutions
Not Belong to Vehicle

Key Does Not Belong to Vehicle

 You have put the wrong SmartKey in the ignition lock.
  • Use the correct SmartKey.
Key from Ignition

Take Your Key from Ignition

 The SmartKey is in the ignition lock.
  • Remove the SmartKey.
New Key

Obtain a New Key

 The SmartKey needs to be replaced.
  • Visit a qualified specialist workshop.
Key Battery

Replace Key Battery

 The batteries of the KEYLESS-GO key are discharged.
  • Change the batteries ().
Your Key

Don't Forget Your Key

 The display message is shown for a maximum of 60 seconds and is only a reminder.

You have opened the driver's door with the engine switched off.

The KEYLESS-GO key is not in the ignition lock.

  • Remember to take the KEYLESS-GO key with you when you leave the vehicle.
Detected (red display message)

Key Not Detected (red display message)

 The KEYLESS-GO key is not in the vehicle.

A warning tone also sounds.

If the engine is switched off, you can no longer lock the vehicle

centrally or start the engine.

  • Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions.
  • Apply the parking brake.
  • Locate the KEYLESS-GO key.

The KEYLESS-GO key is not detected while the engine is running because there is interference from a strong source of radio waves. A warning tone also sounds.

  • Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions.
  • Engage the parking brake.
  • Operate the vehicle with the SmartKey in the ignition lock.
Detected (White display message)

Key Not Detected (White display message)

 The KEYLESS-GO key cannot be detected at present.
  • Change the location of the key with the KEYLESS-GO functions in the vehicle.

If the KEYLESS-GO key is still not detected:

  • Operate the vehicle with the SmartKey in the ignition lock.
in Vehicle

Key Detected in Vehicle

 The KEYLESS-GO key has been detected inside the vehicle during locking.
  • Remove the KEYLESS-GO key from the vehicle.
Button and Insert Key

Remove 'Start' Button and Insert Key

 KEYLESS-GO is temporarily malfunctioning or is defective. A warning tone also sounds.
  • Insert the SmartKey into the ignition lock and turn it to the desired position.
  • Visit a qualified specialist workshop.
to Lock Vehicle

Close Doors to Lock Vehicle

 At least one door is open. A warning tone also sounds.
  • Close all doors and lock the vehicle again.
    See also:

    Cruise control lever
    1 To activate or increase speed 2 To activate or reduce speed 3 To deactivate DISTRONIC PLUS 4 To activate at the current speed/last stored speed 5 To set the specified minimum distance ...

    Releasing the electric parking brake automatically
    The electric parking brake is released automatically when the following conditions are simultaneously fulfilled: • the engine is running. • the automatic transmission is in position D or R. ...

    Important safety notes
    WARNING It is dangerous to shift the automatic transmission out of parking position P or neutral position N if the engine speed is higher than idle speed. If your foot is not firmly on the ...