S 550 (221.171) V8-5.5L (273.961) (2007)
Tire Pressure Sensor: Description and Operation
GF40.15-P-5126SX Wheel Sensor, Component Description
MODEL 216.3, 221.0 /1 with CODE (475) Tire pressure monitor (Siemens)
MODEL 216.3, 221.0 /1 with CODE (470) Tire pressure monitor (base)
MODEL 216.3 with CODE (494) USA version
Each TPM wheel sensor is connected to the filling valve via the mounting screw and together with this forms an assembly unit. This assembly unit is
attached to the rim flange with the counternut.
A wheel sensor consists of the following components:
-
Pressure sensor
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Temperature sensor
-
Acceleration sensor
-
High frequency (HF) transmitter
-
Sensor battery for voltage supply
Note:
The TPM wheel sensor can only be replaced as a complete assembly unit