Adjusting the lumbar support, Adjusting the 4-way lumbar support, Switching the seat heating on/off – Mercedes-Benz 2013 GLS Class User Manual
Page 110: Seats, steering wheel and mirrors, Seats

You can select the following levels:
Level 1 (one indica-
tor lamp)
Standard setting:
slightly increased
lateral support and
slow build-up of air
pressure in the side
bolsters of the seat
backrest.
Level 2 (two indica-
tor lamps)
Sport setting:
increased lateral
support and fast
build-up of pressure
in the side bolsters
of the seat backrest.
Massage function (PULSE)
The massage function helps you to prevent
muscle tension on long journeys. You can
choose between two levels.
X
To switch on: press button ? once or
twice until the desired level is set.
One or two indicator lamps in button ?
light up. The air cushions in the lumbar
region vibrate for approximately
20 minutes.
Adjusting the lumbar support
You can adjust the contour of the driver's seat
so as to provide optimum support for your
back.
X
Move adjustment lever : in the direction
of the arrow until the desired backrest con-
tour is achieved.
Adjusting the 4-way lumbar support
:
To raise the backrest contour
;
To soften the backrest contour
=
To lower the backrest contour
?
To harden the backrest contour
You can adjust the contour of the front seat
backrests individually to provide optimum
support for your back.
Switching the seat heating on/off
Switching on/off
G
WARNING
If you repeatedly switch on seat heating, the
seat cushion and backrest padding may
become very hot. The health of vehicle occu-
pants with limited temperature sensitivity or
a limited ability to react to excessively high
temperatures may be affected or they may
even suffer burn-like injuries. There is a risk
of injury.
Therefore, do not switch on the seat heating
repeatedly.
108
Seats
Seats, steering wheel and mirrors