CLK 500 (209.375) V8-5.0L (113.968) (2003)
Blower Motor: Description and Operation
Combustion Air Blower
Combustion Air Blower
Task
To guarantee a constant supply of combustion air in order to provide a consistent fuel/air mixture during heater operation and rapid cooling of the STH
or heater booster heater unit and flush the combustion chamber out during heater relayed switch-off.
GF83.10-P-2103-01Q Blower Controller Function
GF83.10-P-2103-01Q Blower Controller Function
Function
The AAC [KLA] control and operating unit (N22) (on vehicles without code (581b) comfort automatic air conditioning) or the comfort AAC (C-AAC
[K-KLA]) control and operating unit (N22/7) (on vehicles with code (581b) comfort automatic air conditioning) forwards a control signal of between 0%
and 100% to the blower regulator (A32n1) via the A/C bus. This regulates the output of the blower motor (A32m1)and thus the flow rate of the air drawn
in or the recirculated air.
The blower regulator is influenced by the following factors:
^
Blower preselection on the AAC [KLA] control and operating unit (N22) or the comfort AAC (C-AAC [K-KLA]) control and operating unit
(N22/7)
^
Preselection of air distribution
^
AC OFF function active
^
Engine residual heat utilization function active
^
Recirculated air function active
^
Temperature preselection
^
Coolant temperature
^
Outside temperature
^
Vehicle speed
^
Flap positions of actuator motors
GF83.10-P-2141Q Blower Regulator, Location / Task / Function
GF83.10-P-2141Q Blower Regulator, Location / Task / Function