Ambiance Illumination, Function - GF82.20-P-2103FR

Model 257, 290 

up to model year 2021 

with code 891 (Premium ambiance illumination) 

Courtesy of MERCEDES-BENZ USA

Function requirements, general 

• No overvoltage or undervoltage

Ambiance illumination 

Ambient lighting illuminates the vehicle interior.

The ambient lighting is switched on by unlocking the vehicle remotely, by opening a vehicle door or by changing the status of circuit 15. In the process, different areas of the vehicle interior are illuminated indirectly. The luminosity and the color in which the ambiance illumination is to be designed can be adjusted using a corresponding menu in the head unit. Different zones can also be defined using this menu.

The following zones can be selected:

• "Front" zone, driver and front passenger area
• "Displays" zone, illumination of instrument cluster and Audio/COMAND display
• "Rear" zone, rear area
• "Complete" zone, all areas

The luminosity can be set in several stages. Several different colors can be selected.

The head unit transmits the relevant information about these settings via the user interface CAN, the electronic ignition lock control unit and the interior CAN to the ambiance illumination control unit.

Model 290

up to model year 2021

with code 224 (Rear individual seat design)

with code 891 (Premium ambiance illumination)

The luminosity and the color in which the ambient lighting in the rear passenger compartment is to be implemented can be selected using a corresponding menu on the touchscreen (A105/3).

After a vehicle door is opened, the ambient lighting is actuated with 100 % luminosity.

The electronic ignition lock control unit sends the status of the central locking and the status of circuit 15 via interior CAN to the ambiance illumination control unit.

The ambient lighting is deactivated 3 s after the vehicle is locked.

The ambient lighting control unit evaluates all incoming information and then actuates the following component parts:

Over left front door ambient lighting LIN:

• Left front door ambiance illumination
• Left front door handle ambiance illumination
• Left front door stowage compartment illumination

Over right front door ambient lighting LIN:

• Right front door ambiance illumination
• Right front door handle ambiance illumination
• Right front door stowage compartment illumination

Over left rear door ambiance illumination LIN:

• Left rear door ambiance illumination
• Left rear door handle ambiance illumination
• Left rear door stowage compartment illumination

Over right rear door ambiance illumination LIN:

• Right rear door ambiance illumination
• Right rear door handle ambiance illumination
• Right rear door stowage compartment illumination

Over cockpit ambient lighting LIN:

• Left front center console ambiance illumination
• Right front center console ambiance illumination
• Inner upper digital instrument cluster full display ambient lighting (with code 464 (Digital instrument cluster full display))
• Outer upper digital instrument cluster full display ambient lighting (with code 464 (Digital instrument cluster full display))
• Inner lower digital instrument cluster full display ambient lighting (with code 464 (Digital instrument cluster full display))
• Outer lower digital instrument cluster full display ambient lighting (with code 464 (Digital instrument cluster full display))
• Driver side air vent ambiance illumination
• Front passenger side air vent ambiance illumination
• Driver outside center air vent ambiance illumination
• Driver inside center air vent ambiance illumination
• Front passenger outside center air vent ambiance illumination
• Front passenger inside center air vent ambiance illumination
• Left rear center console ambient lighting (model 290)
• Right rear center console ambient lighting (model 290)

Over vehicle interior ambient lighting LIN:

• Driver-side ambiance illumination
• Passenger-side interior ambiance illumination
• Passenger-side exterior ambiance illumination
• Right front footwell lamp
• Left front footwell lamp
• Left rear footwell lamp
• Right rear footwell lamp
• Front center console cup holder illumination
• Left rear passenger compartment center console ambient lighting (model 290 with code 224 (Individual rear seat system design))
• Right rear passenger compartment center console ambient lighting (model 290 with code 224 (Individual rear seat system design))

Over roof ambient lighting LIN:

• Roof center midrange speaker ambiance illumination (with code 811 (Advanced sound system))
• Left center headliner mid-range speaker ambient lighting (with code 811 (Advanced Sound-System))
• Right center headliner midrange speaker ambient lighting (with code 811 (Advanced sound system))

The door handle ambient lighting is actuated after circuit 15C has been switched off for an additional 2 min (run-on).

Overview of interior illumination (IBL) system components

GF82.20-P-9997FR