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
When pushing back the NECK-PRO head
restraint cushion, make sure your fingers do
not become caught between the head
restraint cushion and the cover. Failure to
observe this could result in injuries.
See also:
Switching on/off
The three red indicator lamps in the button
indicate the heating level you have selected.
If the battery voltage is too low, the seat
heating may switch off.
One or more of the indicator lamp ...
Removing the towing eye
Loosen the towing eye and unscrew it.
Attach cover 1 to the bumper and press until it
engages.
Place the towing eye in the vehicle tool kit.
...
Engine
Display messages
Possible causes/consequences and
Solutions
The coolant level is too low.
Add coolant, observing the warning notes when doing so.
If coolant nee ...