Outside temperature sensor, location/task/function - GF83.57-P-2110SK

MODEL 171.4 

Fig 1: Identifying Outside Temperature Sensor Location

Courtesy of MERCEDES-BENZ USA

Outside air temperature sensor position	The outside temperature display temperature sensor (B14) is in the left front bumper.
Outside air temperature sensor task	To record the outside temperature.
Outside air temperature sensor function	The outside temperature display temperature sensor (B14) changes its resistance depending on the outside temperature. It is discretely read in by the driver-side SAM control unit with fuse and relay module.