Component description for electronic overhead control panel - GF82.20-P-5217CA

MODEL 207.3/4

Fig 1: Identifying Electronic Overhead Control Panel Components

Courtesy of MERCEDES-BENZ USA

Location

The overhead control panel electronics is located at the front, next to the headliner.

Task

The controls for the following systems are arranged at the overhead control panel electronics:

Interior illumination
Panoramic sliding sunroof (with CODE 413 (Panoramic glass sunroof with top sliding sunroof))
Interior and tow-away protection (with CODE 882 (Interior monitoring (only with ATA [EDW])))
Emergency call system (with CODE 359 (TELEAID emergency call system) or CODE 348 (Emergency call/assist system) or CODE 350 (Ecall Europe emergency call system, gen. 2))

The node of the wiper/inside rear-view mirror LIN (LIN 2) is integrated in the overhead control panel electronics. The following components are connected to this node:

Inside rearview mirror (A67) (with CODE 231 (Garage door opener) or CODE 232 (Garage door opener with frequency 284-390 MHz), CODE 249 (Automatically dimming inside and outside mirror including folding outside mirror) or with CODE 249 (Automatically dimming inside rearview mirror and outside mirror (driver)))
Rain/light sensor (B38/2)
Front SAM control unit with fuse and relay module (N10/1)

The overhead control panel electronics are supplied with voltage by the front SAM control unit.

The signals of the following components are provided for other control units via the wiper/inside rearview mirror LIN:

With CODE 249 (Automatically dimming inside rearview mirror and outside mirror (driver))
- Forward mirror dimming light sensor (A67h1)
- Rearward dimming mirror light sensor (A67h2)
- Mirror dimming (A67h3)
Garage door opener (A67n2) (with CODE 231 (Garage door opener) or CODE 232 (Garage door opener with frequency 284-390 MHz))
Rain/light sensor

The following components are supplied with voltage by the overhead control panel electronics:

Rain/light sensor
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)
Rear dome lamp (E15/3) (in model 207.3)

The housing of the overhead control panel electronics also contains the following components:

With CODE 882 (interior monitoring (with ATA [EDW] only)):
- Interior protection and tow-away protection control unit (N26/6)
- Interior protection receiver (N26/6a1)
- Left interior protection transmitter (N26/6b1)
- Right interior protection transmitter (N26/6b2)
With CODE 359 (TELEAID emergency call system) or CODE 348 (Emergency call/assist system) or CODE 350 (Ecall Europe emergency call system, gen. 2):
- Emergency call system button
- MB Info button (with CODE 359 (TELEAID emergency call system) or CODE 348 (Emergency call/assist system))
- Breakdown assistance button (with CODE 359 (TELEAID emergency call system) or CODE 348 (Emergency call/assist system))

Wiring diagram for overhead control panel (OCP) control unit

PE54.21-P-2107-97EAB