Antenna System, Detailed Information - GF82.62-P-0020E

Model 223 

Overview 

This document contains information on:

• General 
• Function 
  • Telephone stationary heater and Remote Parking Package antennas connection 
  • Emergency call system antennas connection 
  • GPS antenna connection 
  • Rear window antennas connection 

Courtesy of MERCEDES-BENZ USA

Overview of system components, shown on model 223 

Courtesy of MERCEDES-BENZ USA

Overview of system components, shown on model 223 

Courtesy of MERCEDES-BENZ USA

Overview of system components, shown on model 223 

Courtesy of MERCEDES-BENZ USA

Overview of system components, shown on model 223 

The front Bluetooth®/Wi-Fi antennas are used for remote updates of the control unit software for multimedia system control or, where this is not possible, the telephone antennas in the outside mirrors.

The signals from the central locking antennas are combined internally in the roof antenna module (10).

General 

The antennas may be located at different positions around the vehicle depending on the function and task involved.

Function 

The antenna's connection to the respective control units, antenna splitters, amplifiers and receivers will vary depending on the function, equipment and body form.

Telephone, stationary heater and Remote Parking Package antennas connection 

Antennas are integrated into roof antenna module (10). Depending on the vehicle equipment, the antenna connection may differ:

• Vehicles with code 899 (Wireless telephone charging at front and antenna) or with code 380 (Car telephony package) or with code B24 (Remote control for auxiliary heating) or with code 503 (Remote-controlled parking):

  Directly to the mobile phone cradle control unit, to the telephone control unit, to the stationary heater radio remote control receiver or to the parking system control unit

• Vehicles with code 380 (Car telephony package) and with code 503 (Remote-controlled parking) or code B24 (Remote control for auxiliary heating):

  To the telephone control unit and to the parking system control unit or to the stationary heater radio remote control receiver through the antenna changeover switch for telephony/stationary heater and Remote Parking Package (17)

• Vehicles with code 503 (Remote-controlled parking) and with code B24 (Remote control for auxiliary heating):

  To the parking system control unit and to the stationary heater radio remote control receiver through the Remote Parking Package/stationary heater antenna splitter (20)

• Vehicles with code 380 (Car telephony package) and with code 503 (Remote-controlled parking) and with code B24 (Remote control for auxiliary heating):

  Through the antenna changeover switch for telephony/stationary heater and Remote Parking Package (17) to the telephone control unit and to the Remote Parking Package/stationary heater antenna splitter (20) and from here on to the parking system control unit and to the stationary heater radio remote control receiver

• On vehicles with code 380 (Car telephony package) and with code 899 (Wireless telephone charging at front and antenna) the antenna signal is forwarded as requested over the telephone antenna changeover switch (18) to the telephone control unit or to the mobile phone cradle control unit.

On vehicles with code 899 (Wireless telephone charging at front and antenna), the antenna signal to the mobile phone cradle control unit is amplified by the cellular telephone system antenna amplifier/compensator (19).

Depending on the equipment installed, two antennas are located in the left and right outside mirrors for telephony in the rear passenger compartment.

Emergency call system antennas connection 

• The 2 emergency call system antennas are directly connected to the telematics services control unit.
• If the vehicle is also equipped with code 380 (Auto-Telefonie Package) or with code 899 (Wireless telephone charging at front and antenna):

  One of the antennas is also used for telephony via an antenna splitter integrated into the roof antenna module (10).

GPS antenna connection 

Depending on the vehicle equipment, the following GPS antenna connections are possible:

• Vehicles with code 383 (RAMSES ENTRY communication module) or code 384 (RAMSES HIGH communication module) without  code 355 (Pre-installation for navigation retrofit):

  Directly to the telematics services control unit

• Vehicles with code 383 (RAMSES ENTRY communication module) or code 384 (RAMSES HIGH communication module) with  code 355 (Pre-installation for navigation retrofit):

  The GPS antenna signal is forwarded to the multimedia system by a GPS splitter integrated into the telematics services control unit.

• Vehicles without telematics services control unit, but with code 355 (Pre-installation for navigation retrofit):

  Directly to multimedia system control

• Vehicles with code 200 (Conditionally automated driving):

  Additionally via another antenna output directly to position determination control unit

Rear window antennas connection 

The antennas in the rear window are connected via 2 antenna amplifiers:

• Left C-pillar antenna amplifier (21)
• Right C-pillar antenna amplifier (16)