Mercedes-Benz 350 SDL Owner's Manual page 34

Heated Seats
The front seat heaters can be
switched on with the key in steering
lock positions 1 or 2, the rear seat
heaters only in steering lock position 2.
The switches for the front seats are lo­
cated at the forward end of the center
console, those for the rear seats are
located in the rear doors.
32
neater operation:
Push in upper switch portion; posi­
tion 1 = normal heater operation, one
indicator lamp lights up.
Push in lower switch portion; posi­
tion 2 = rapid heating, both indicator
lamps light up.
After approximately 5 minutes in the
rapid heating mode, the heater
automatically switches to normal
operation and only one indicator lamp
will stay on.
Turning off heater:
If one indicator lamp is on, press in
upper part of switch, position 1.
If both indicator lamps are on, press in
lower part of switch, position 2.
The heater automatically turns off
after approximately 30 minutes of
operation.
Notes:
When in operation, the seat heater
consumes a large amount of power. It
is advisable not to use the seat heater
longer than necessary.
The seat heaters may automatically
switch off if too many power consum­
ers are switched on at the same time,
or if the battery charge is low. When
this occurs, the indicator lamp in the
switch will blink (both indicator lamps
blink during rapid seat heating). The
seat heaters will switch on again as
soon as sufficient voltage is available.
If the blinking of the indicator lamps is
distracting to you, the seat heaters
can be switched off.