E 550 Coupe (207.372) V8-5.5L (273.966) (2010)
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The control and operating unit has the following tasks:
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Operation of the vehicle's climate control
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Reading in of sensors and signals
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Evaluation of input factors
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Actuation of components
Operation of the vehicle's climate control
The control and operating unit enables the following operations:
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Interior temperature selection separated for the left and right side
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Automatic blower control and air distribution
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Manual blower control and air distribution
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Switch automatic air conditioning (AAC [KLA]) on and off
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Defrost function
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Switching the A/C compressor (A9) on and off
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Mono mode
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Recirculated air mode
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Maximum cooling output (with code (494) USA version)
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Control of the rear window heater (R1)
It is operated with the following buttons:
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"OFF" button
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Temperature rocker
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Air volume rocker
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Air distribution rocker
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"AUTO" button
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"A/C" button
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Rear window heater button
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"ZONE" button
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Air recirculation mode button
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Defrosting button
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"MAX COOL" button (with code (494) USA version)
"OFF" button
The AAC [KLA] can be switched off completely or switched back on by pressing the "OFF" button.
Temperature rocker
Pressing the temperature rocker enables the required specified temperature to be set for the left and right sides. The temperature is shown on the display.
Maximum temperature setting: display "HI"; minimum temperature setting: display "LO".
Air volume rocker
The air volume can be adjusted manually by actuating the air volume rocker.
The selected setting is shown on the display.
Air distribution rocker
The air volume can be adjusted by actuating the air volume rocker.
The selected air distribution setting is shown on the display.
"AUTO" button
The air volume and the air distribution are regulated automatically when the AUTO button is pressed If automatic mode is activated, the LED lights up.
"A/C" button
Pressing the "A/C" button switches the refrigerant compressor on or off with "circuit 61 ON". All other functions are retained.
The LED lights up when the refrigerant compressor is switched on.
Rear window heater button
The rear window heater is switched on when the rear window heater button is pressed. The LED lights up during operation.
The operating time of the rear window heater is calculated by the rear SAM control unit with fuse and relay module (N10/2) depending on the outside
