See also:

Activating the HOLD function
•► Make sure that the activation conditions are met. •► Depress the brake pedal. •► Quickly depress the brake pedal further until HOLD display 1 appears in the multifunctio ...

Important safety notes
WARNING   For reasons of safety, have the NECK-PRO head restraints/NECK-PRO luxury head restraints checked at an authorized Mercedes-Benz Center after a rear-end collision. WARNING&nbs ...

Problems with the cooling with air dehumidification function
When you press the button, the indicator lamp in the button flashes three times or remains off. You can no longer switch on the cooling with air dehumidification function. Consult a qualifi ...