E 320 Sedan (211.065) V6-3.2L (112.949) (2004)
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When the button is pressed, the comfort AAC [KLA] control and operating unit (N22/7) transmits a switch-on request to the rear SAM control unit with
fuse and relay module via CAN-B; the function LED in the heated rear window switch (N22/7s1) is switched on at the same time.
Air recirculation switch (N22/7s2)
When the air recirculation switch (N22/7s2) is pressed briefly (< 1.5 s), the main air flap is closed to prevent air entering from outside. The function
LED in the air recirculation switch (N22/7s2) lights up during operation. When pressed for a longer period (> 1.5 s), the convenience open/close
windows and tilting/sliding roof (SHD) (for code (414) Power glass tilting/sliding roof) function is activated.
Window defrost switch (N22/7s3)
The temperature is set to "maximum" and the air flow distributed to the defroster and lateral nozzles. All the other flaps are closed. The blower voltage is
controlled depending on the coolant temperature. The "DEFROST" symbol appears in the display (3) of the comfort AAC [KLA] control and operating
unit (N22/7) and in the display of the control panel rear switch group. The function LED in the window defrost switch (N22/7s3) comes on.
