REST button, location - GF83.40-P-2109-02A

Automatic air conditioning (automatic A/C) 

The button is located on the pushbutton control module (N22).

Fig 1: Identifying Rest Button Location - Automatic Air Conditioning (Automatic A/C)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Air conditioning (Tempmatic) 

On the taxi version (code 450) the button is combined with the button.

Fig 2: Identifying Rest Button Location - Air Conditioning (Tempmatic)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Automatic heater (HEAT) 

On the taxi version (code 450) the button is combined with the button.

Fig 3: Identifying Rest Button Location - Automatic Heater (Heat)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.