C 240 Wagon (203.261) V6-2.6L (112.912) (2003)
heating".
3
The STH or heater booster control module (A6n1)
-
switches the circulation pump (A6m1) off
and
-
transmits the "Blower OFF" signal to the operating and control module (N18, N22 or N22/7) via the CAN Class -B (CAN-B).
4
The control and operating module (N18, N22 or N22/7) switches the ventilation blower off and switches from stationary heating mode to its
normal operating mode.
5
Heater operation is over.
-
The green or red indicator lamp in the STH switch (N72s12 or S46) is extinguished.
NOTE: The heating time can be coded for 10, 20, 30, 40, 50 or 60 minutes in the STH or heater booster control module (A6n1) via the STAR
DIAGNOSIS diagnostic system.
Heating Mode
Heating mode, Function
Shown On Models 215, 220
Operating procedure
1
The start of the heater operation is completed:
-
The green or red indicator lamp in the STH switch (N72s12 or S46) is illuminated.
-
The coolant circulation pump (A6m1) delivers the coolant via the heat exchanger (2) and the heating and cooling circuits. Combustion is
steady, the coolant is heated up. The cooling blower delivers, actuated by the control and operating module (N18, N22 or N22/7), preheated air