Shows model 246 |
N70 | Overhead control panel control unit |
N70e6 | Left overhead control panel LED |
N70e7 | Right overhead control panel LED |
N70s1 | Panoramic sliding sunroof switch (with CODE 413 (Panoramic sliding sunroof)) |
N70s2 | Rear dome lamp switch |
N70s3 | Interior lamp automatic function switch |
N70s4 | Front dome lamp switch |
N70s6 | Left front reading lamp switch |
N70s7 | Right front reading lamp switch |
P82.20-3726-04
With CODE 882 (Interior monitoring), shown in model 246 |
S93/3 | Anti-theft alarm system/emergency call system button group |
S93/3s1 | Towing sensor button |
S93/3s3 | Interior protection switch |
P80.50-2796-04
With code 348 (Emergency call/Assist system) or code 362 (HERMES LTE), shown on model 246 with code 348 (Emergency call/Assist system) |
S93/3s2 | Emergency call system button |
S93/3s4 | Breakdown assistance button |
S93/3s5 | MB-Info button |
P80.50-2797-04
Location
The overhead control panel control unit is located at top center of the windshield frame.
Tasks
The overhead control panel control unit has the following tasks:
Read in sensors and signals
Evaluation of input factors
Actuation of components
Read in sensors and signals
The input factors are read in via the following connections:
Direct line
Roof LIN (LIN B13)
Direct line
The signals from the following components are read via direct lines:
Interior temperature sensor with integrated fan (N70b1)
Panoramic sliding roof switch
Rear dome lamp switch
Interior lamp automatic function switch
Front dome lamp switch
Left front reading lamp switch
Right front reading lamp switch
Anti-theft alarm system/emergency call system button group (with code 348 (Emergency call/Assist system), code 350 (eCall Europe emergency call system), code 351 (Emergency call system (HERMES)) or code 882 (Interior monitoring))
Roof LIN
The overhead control panel control unit reads in the requests of the SAM control unit (N10) to switch on the respective lamps via the roof LIN.
Evaluation of input factors
The input factors are evaluated by the microprocessor and the corresponding components are actuated.
Actuation of components
The actuation of the components takes place via the following connection:
Direct line
The following components are actuated via a direct line:
Ambient lamp (A67e3) (with CODE U62 (Light and sight package))
Left inside rearview mirror interior lamp (A67e5) (with CODE U62 (Light and sight package))
Right inside rearview mirror interior lamp (A67e6) (with CODE U62 (Light and sight package))
Left overhead control panel LED
Right overhead control panel LED
Left sun visor mirror lamp (E14/1) via the left front mirror lamp switch (S101) (with CODE U62 (Light and sight package))
Right sun visor mirror lamp (E14/2) via the right front mirror lamp switch (S102) (with CODE U62 (Light and sight package))
Rear dome lamp (E15/3)
Rear dome lamp with reading lamps (E15/1) (model 117, 156, 176 with CODE U62 (Light and sight package))
Left rear interior/reading lamp (E15/12) via left rear interior/reading lamp switch (E15/12s1) (model 242, 246 with CODE U62 (Light and sight package))
Right rear interior/reading lamp (E15/13) via right rear interior/reading lamp switch (E15/13s1) (model 242, 246 with CODE U62 (Light and sight package))
Anti-theft alarm system/emergency call system button group (with code 348 (Emergency call/Assist system), code 350 (eCall Europe emergency call system), code 351 (Emergency call system (HERMES)) or code 882 (Interior monitoring))