Heated Seats; Heater Operation; Turning Off Heater - Mercedes-Benz 420 SEL 1989 Owner's Manual

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
located at the forward end of the
center console, those for the rear
seats are located in the rear doors.
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Heater operation:

Push in upper switch portion; position
1 = normal heater operation, one indi­
cator lamp lights up.
Push in lower switch portion; position
2 = rapid heating, both indicator
lamps light up.
After approximately 5 minutes in the
rapid heating mode, the heater auto­
matically switches to normal opera­
tion 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 con­
sumers 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 avail­
able.
If the blinking of the indicator lamps is
distracting to you, the seat heaters
can be switched off.