Hands-free system microphone, component description - GF82.70-P-4121GZ

MODEL 164 with CODE (494) USA version with CODE (389) Mobile phone preinstallation with universal interface, USA/Canada with CODE (359) TELE AID emergency call system up to Model Year 2008

Shown on model 164.1 before production period 31.05.2006

Fig 1: Identifying Hands-Free System Microphone Component - Shown On Model 164.1

Courtesy of MERCEDES-BENZ USA

Shown on model designation 164.1 as of production period 01.06.2006

Fig 2: Identifying Hands-Free System Microphone Component - Shown On Model 164.1

Courtesy of MERCEDES-BENZ USA

Location

The hands-free system microphone group is integrated in the inside rearview mirror unit (A67).

Task

The hands-free system microphone group converts sound waves into electrical signals and serves for:

Voice input for telephoning
Voice input for TELE AID emergency call system

Purpose without preequipment for portable CTEL

If a UPCI (Universal Portable CTEL Interface) control unit (N123/1) is not installed, a microphone from the hands-free system microphone group will be discreetly wired to the emergency call system control unit (N123/4).

Purpose with preequipment for portable CTEL

The hands-free system microphone group is discreetly connected to the UPCI (Universal portable CTEL Interface) control unit. A microphone from the hands-free system microphone group is discreetly connected to the emergency call system control unit over the UPCI (Universal portable CTEL Interface) control unit.