Mercedes-Benz S-Class 2019 Operator's Manual page 142

140 Seats and stowing
Vehicles with a rear bench seat or electrically
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adjustable outer seats: fold down the rear
armrest.
Pull handle 1 and fold down cover 2.
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To open: pull handle 1 and fold down the
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cover.
To switch on: press button
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until an indicator lamp (low cooling) flashes
or two indicator lamps (high cooling) flash.
To switch off: press button
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until both indicator lamps go out.
Removing or installing the refrigerator box
Removing
2 repeatedly
Switch off the refrigerator box.
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Pull plug
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2 repeatedly
Unscrew both screws 3.
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Pull out the refrigerator box.
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Close flap 1.
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2 down and out.