Central TPM [RDK] antenna, component description - GF40.15-P-5129TRU

MODEL 211 with CODE (470) Tire pressure monitor (base) with CODE (494) USA version 

The central TPM [RDK] antenna (A2/97) is attached under the rear seats on the left of the vehicle underbody.

Fig 1: Locating Central TPM [RDK] Antenna

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Central TPM [RDK] antenna 

task 

The central TPM [RDK] antenna receives the following information from the left front TPM [RDK] wheel sensor (A69/1), right front TPM [RDK] wheel sensor (A69/2), left rear TPM [RDK] wheel sensor (A69/3) and from the right rear TPM [RDK] wheel sensor (A69/4):

• the absolute pressure in the tire
• the acceleration
• The temperatures at the individual TPM wheel sensors
• The ID for identifying the wheel

Function 

The information transmitted by radio signal is supplied to the TPM [RDK] control unit via a discrete line.