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140
Controls in detail
Seats
Switching on
̈ Press switch 1.
Three red indicator lamps 2 in the
switch come on.
̈ Continue pressing switch 1 until
desired seat heating level is reached.
Switching off
̈ Press switch 1 repeatedly until all
indicator lamps 2 go out.
Seat ventilation* (Canada only)
Seat ventilation is available on the
R 550 4MATIC only.
The switches for the seat ventilation are
located in the center console.
1 Seat ventilation switch
2 Indicator lamps
The blue indicator lamps in the switch
come on to show which ventilation level
you have selected.
̈ Switch on the ignition (୴ page 39).
Switching on
̈ Press switch 1 repeatedly until the
desired ventilation level is set.
Switching off
̈ Press switch 1 repeatedly until all
indicator lamps 2 go out.
i
If one or more of the indicator lamps 2 on
seat heating switch 1 (
୴ page 139) are flash-
ing, there is insufficient voltage due to too many
electrical consumers being switched on. The
seat heating switches off automatically.
The seat heating will switch back on again
automatically as soon as sufficient voltage is
available.
Level
3 Three indicator lamps on
(highest level)
2 Two indicator lamps on
1 One indicator lamp on
(lowest level)
off No indicator lamp on
i
The seat ventilation for the driver’s seat is
automatically set to the highest level if activated
via summer opening feature (
୴ page 244).