The hatch on the roof of the S-Class Mercedes S-Class (W221) must be closed automatically when the ignition is off or the key is turned off. This occurs in the following cases:

  • In rain or rain.
  • At very high or vice versa very low air temperature.
  • Six hours after ignition.

If the closure of the hatchway is not done for the reasons described, it is possible that the rain or ambient temperature sensors may be malfunctioning. It is also possible to have intermittent voltage of the onboard network or a weak battery charge.




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