Ambiance Illumination, Function - GF82.20-P-2103LF
Model 217, 222 with code 877 (Ambient lighting)
Ambient lighting (with code 877 (Ambient lighting)), up to model year 2018
Model 217.4 with code 877 (Ambient lighting)
Although the rear dome lamp and the rear dome lamp ambient lighting are installed, they are not actuated as part of ambient lighting.
Ambient lighting (with code 877 (Ambient lighting)), as of model year 2018
Function requirements, general
- No overvoltage or undervoltage
Ambiance illumination
The ambient lighting feature provides the brightness-adjustable illumination of all control elements as well as the illumination of 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 color of the ambient lighting be continuously adjusted using the corresponding menu in the COMAND controller unit (up to model year 2018) or in the head unit (as of model year 2018).
Different zones can also be defined using this menu.
The following zones can be selected:
- "Front" zone, driver and front passenger area
- "Displays" zone, instrument cluster and Audio/COMAND display (A40/8)
- "Rear" zone, rear area
- "Complete" zone, all areas
The luminosity can be set in several stages. Several different colors can be selected.
In vehicles as of model year 2018, the color selection can also be made via the voice control system.
The COMAND controller unit (up to model year 2018) or the head unit (as of model year 2018) sends the corresponding information on these settings via the user interface CAN, electronic ignition lock control unit and interior CAN to the front SAM control unit (up to model year 2018)
or to the ambient lighting control unit (as of model year 2018).
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 system and the status of circuit 15 via the interior CAN to the front SAM control unit (up to model year 2018) or to the ambient lighting control unit (as of model year 2018).
The front door control units sends the status of the front doors (open or closed) via the interior CAN to the front SAM control unit (up to model year 2018) or to the ambient lighting control unit (as of model year 2018).
The rear door control units (model 222) sends the status of the rear doors (open or closed) via the interior CAN to the front SAM control unit (up to model year 2018) or to the ambient lighting control unit (as of model year 2018).
The ambient lighting is deactivated 3 s after the vehicle is locked.
Vehicles up to model year 2018:
The front SAM control unit evaluates all of the incoming information and transmits the request to switch on the ambient illumination via interior CAN to the following control units:
- Rear SAM control unit
- Left front door control unit
- Right front door control unit
- Left rear door control unit (model 222)
- Right rear door control unit (model 222)
- Electronic ignition switch control unit
The front SAM control unit actuates the following components directly:
- Rear center console stowage compartment ambient lighting (model 222 with code 223 (Electrically adjustable rear bench seat))
- Right front footwell lamp
- Left front footwell lamp
- Right rear footwell lamp
- Left rear footwell lamp
- Left front illuminated door sill molding (with code U25 (Door sills with "Mercedes-Benz" lettering, illuminated))
- Right front illuminated door sill molding (with code U25 (Door sills with "Mercedes-Benz" lettering, illuminated))
- Left rear illuminated door sill molding (model 222 with code U25 (Door sills with "Mercedes-Benz" lettering, illuminated))
- Right rear illuminated door sill molding (model 222 with code U25 (Door sills with "Mercedes-Benz" lettering, illuminated))
- Front center console cup holder ambient lighting
- Rear center console cup holder ambient lighting (model 222 with code 223 (Electrically adjustable rear bench seat))
- Left front center console ambient lighting
- Left rear center console ambient lighting
- Right front center console ambient lighting
- Right rear center console ambient lighting
- Driver ambient lighting
- Front passenger interior ambient lighting
- Front passenger exterior ambient lighting
The illuminated door sill moldings are actuated with different maximum values when the corresponding door is opened as a function of the ambient brightness. The ambient brightness is detected by the light sensor. The rain/light sensor with additional functions reads in the signals of the light sensor directly, evaluates them and transmits information about the ambient brightness (dimness level) via the rain/light sensor LIN to the front SAM control unit.
The front SAM control unit sends the request to switch on the ambient lighting via roof LIN to the overhead control panel control unit.
The overhead control panel control unit actuates the following components directly:
- Rear dome lamp ambient lighting in the rear dome lamp (model 217.3)
- Rear light ring ambient lighting (model 222 with code 223 (Electrically adjustable rear bench seat) and code 811 (Advanced Sound System))
- Rear ambient lighting (model 222 except code 223 (Electrically adjustable rear bench seat))
- Left overhead control panel LED
- Right overhead control panel LED
The left front door control unit actuates the following components directly:
- Left front door ambient lighting
- Left front door handle ambient lighting
- Left front door stowage compartment illumination
In vehicles with code 811 (Advanced sound system), the left front door control unit transmits the request to switch on the ambient lighting via the left front door LIN to the left front door tweeter control unit. The left front door tweeter control unit directly actuates the left front door tweeter ambient lighting, mirror triangle.
The right front door control unit actuates the following components directly:
- Right front door ambient lighting
- Right front door handle ambient lighting
- Right front door stowage compartment illumination
In vehicles with code 811 (Advanced sound system), the right front door control unit transmits the request to switch on the ambient lighting via the right front door LIN to the right front door tweeter control unit.
The right front door tweeter control unit directly actuates the right front door tweeter ambient lighting, mirror triangle.
The left rear door control unit (on model 222) actuates the following component parts directly:
- Left rear door ambient lighting
- Left rear door handle ambient lighting
- Left rear door stowage compartment illumination
The right rear door control unit (on model 222) actuates the following component parts directly:
- Right rear door ambient lighting
- Right rear door handle ambient lighting
- Right rear door stowage compartment illumination
The door handle ambient lighting is actuated after circuit 15C has been switched off for an additional 2 min (run-on).
The rear SAM control unit in model 222 with code 223 (Electrically adjustable rear bench seat) actuates the following component parts:
- Left rear center console ambient lighting
- Right rear center console ambient lighting
- Left rear panel ambient lighting
- Right rear panel ambient lighting
The electronic ignition lock control unit sends the request to switch on the ambient lighting via user interface CAN to the instrument cluster.
The instrument cluster actuates the following components directly:
- Upper Audio/COMAND display ambient lighting
- Lower Audio/COMAND display ambient lighting
Vehicles as of model year 2018:
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 ambient lighting
- Left front door handle ambient lighting
- Left front door stowage compartment illumination
- Left front door tweeter ambient lighting, mirror triangle (with CODE 811 (Advanced Sound System))
- Over right front door ambient lighting LIN:
- Right front door ambient lighting
- Right front door handle ambient lighting
- Right front door stowage compartment illumination
- Right front door tweeter ambient lighting, mirror triangle (with CODE 811 (Advanced Sound System))
- Via the left rear door ambient lighting LIN (model 222):
- Left rear door ambient lighting
- Left rear door handle ambient lighting
- Left rear door stowage compartment illumination
- Via the right rear door ambient lighting LIN (model 222):
- Right rear door ambient lighting
- Right rear door handle ambient lighting
- Right rear door stowage compartment illumination
The door handle ambient lighting is actuated after circuit 15C has been switched off for an additional 2 min (run-on).
- Over cockpit ambient lighting LIN:
- Driver ambient lighting
- Front passenger interior ambient lighting
- Front passenger exterior ambient lighting
- Upper Audio/COMAND display ambient lighting
- Lower Audio/COMAND display ambient lighting
- Over vehicle interior ambient lighting LIN:
- Rear center console stowage compartment ambient lighting (model 222 with code 223 (Electrically adjustable rear bench seat))
- Right front footwell lamp
- Left front footwell lamp
- Right rear footwell lamp
- Left rear footwell lamp
- Front center console cup holder ambient lighting
- Rear center console cup holder ambient lighting (model 222 with code 223 (Electrically adjustable rear bench seat))
- Left front center console ambient lighting
- Left rear center console ambient lighting
- Right front center console ambient lighting
- Right rear center console ambient lighting
- Left rear center console ambient lighting (model 222 with code 223 (Electrically adjustable rear bench seat))
- Right rear center console ambient lighting (model 222 with code 223 (Electrically adjustable rear bench seat))
- Left rear panel ambient lighting (model 222 with code 223 (Electrically adjustable rear bench seat))
- Right rear panel ambient lighting (model 222 with code 223 (Electrically adjustable rear bench seat))
- Over roof ambient lighting LIN:
- Rear dome lamp ambient lighting (model 217.3)
- Rear light ring ambient lighting (model 222 with code 223 (Electrically adjustable rear bench seat) and code 811 (Advanced Sound System))
- Rear ambient lighting (model 222 except code 223 (Electrically adjustable rear bench seat))
| Electrical function schematic ambient lighting | Model 217, 222 up to model year 2018 with code 877 (Ambient lighting) | PE82.20-P-2053-97SEA | |
| Model 217, 222 as of model year 2018 with code 877 (Ambient lighting) | PE82.20-P-2053-97SEB | ||
| Overview of interior illumination (IBL) system components | GF82.20-P-9997LF |