SLK 230 (170.447) L4-2.3L SC (111.973) (2000)
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Recirculating Air Flap Actuator, Compressor: Description and Operation
Position
At top part of air cleaner
Task
Operating recirculated air flap steplessly between 0 - 90° for boost pressure control
Design/function
The recirculating air flap actuator is operated by means of a PWM signal supplied by the engine control module.
-
On/Off ratio 100 %
: recirculating air flap closed
-
On/Off ratio 11 - 99 %
: boost pressure control in part load range
-
On/Off ratio 10 %
: recirculating air flap open
