Component Description For Overhead Control Panel Control Unit - GF82.20-P-5216GR
MODEL 166 up to model year 2016
Shown on model 166.0
With CODE 882 (Interior monitoring (with ATA [EDW] only)), shown on model 166.0
With CODE 359 (TELEAID emergency call system) or with CODE 348 (Emergency call/assist system), shown on 166.0
Location
The overhead control panel control unit is located in the front section of the headliner.
Task
The overhead control panel control unit has the following tasks:
- Reading in of sensors and signals
- Evaluation of input factors
- Actuation of components
Reading in of sensors and signals
The input factors are read in via the following connections:
- Direct line
- Roof LIN (LIN B13)
Direct line
The overhead control panel control unit reads in the signals of the following components via direct lines:
- Interior temperature sensor with integrated fan (N70b1)
- Sliding roof switch
- Rear dome lamp switch
- Interior lamp automatic function switch
- Left front reading lamp switch
- Right front reading lamp switch
With CODE 882 (Interior monitoring (with ATA [EDW] only)) or with CODE 359 (TELEAID emergency call system) or CODE 348 (Emergency call/assist system):
- Anti-theft alarm system/emergency call system button group:
- Towing sensor button
- Emergency call system button
- Interior protection switch
- Breakdown assistance button
- MB-Info button
Roof LIN
The overhead control panel control unit reads in the requests from the SAM control unit (N10) to switch on the interior lights 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 connections:
- Direct line
- Roof LIN Direct line
The following components are actuated via direct lines:
- Left reading lamp (A67e1)
- Right reading lamp (A67e2)
- Left front interior lamp (integrated)
- Right front interior lamp (integrated)
- Left sun visor mirror lamp (E14/1) via the left front mirror lamp switch (S101)
- Right sun visor mirror lamp (E14/2) via the right front mirror lamp switch (S102)
- Central load compartment dome lamp (E15/4)
- Left dome lamp, 2nd seat row (E15/12)
- Right dome lamp, 2nd seat row (E15/13)
Additionally with CODE 882 (Interior monitoring (with ATA [EDW] only)) or with CODE 359 (TELEAID emergency call system) or CODE 348 (Emergency call/assist system):
- Anti-theft alarm system/emergency call system button group:
- Towing sensor button
- Emergency call system button
- Interior protection switch
- Breakdown assistance button
- MB-Info button
Additionally in model 166.8 with CODE 876 (Interior lights package):
- Rear dome lamp (E15/3)
- Left rear reading lamp (E15/3e1) via the left rear reading lamp switch (E15/3s1)
- Right rear reading lamp (E15/3e2) via the right rear reading lamp switch (E15/3s2)
- Rear interior lamp (E15/3e3)
Roof LIN
The overhead control panel control unit transmits status information of the switch located on the housing via roof LIN to the SAM control unit.
| Wiring diagram for overhead control panel (OCP) control unit | PE54.21-P-2107-97NAA |