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Selecting telephone antenna, function - GF82.95-P-3001SXU

MODEL 221.0/1 up to 31.12.05 with CODE (494) USA version 

Usually, the telephone connections are established via the emergency call antenna (A2/52) located on the trunk lid. If the emergency call antenna is defective, e.g. after a rollover or in the event of poor reception, 2 backup antennas are located in the rear bumper of the vehicle, which are designated as emergency call system left backup antenna (A2/54) and emergency call system right backup antenna (A2/55).

The emergency call system control unit (N123/4) recognizes the antenna failure or the poor radio reception on the emergency call antenna and in turn automatically activates over the emergency call system antenna splitter (A2/25) the emergency call system left backup antenna and the emergency call system right backup antenna.

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