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Home >> Mercedes Benz >> 2003 >> CL 55 AMG (215.374) V8-5.5L SC (113.991) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Air Flow Meter/Sensor >> Description and Operation >> Hot Film Mass Air Flow Sensor, Design
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Hot Film Mass Air Flow Sensor, Design




Hot Film Mass Air Flow Sensor, Design




9/1 Hot film sensor
9/2 Measurement channel
9/3 Protective grille
9/4 Housing
9/5 Electrical connection of electronics housing
Pin 1: intake air temperature signal
Pin 2: Terminal 87
Pin 3: ground
Pin 4: 5 V
Pin 5: Air mass signal
9/7 NTC-resistor (intake air temperature)

B2/5 Hot film mass air flow sensor

The air which is supplied to the engine flows through the air mass meter in the air intake duct and thus influences the temperature at the hot film sensor (9/1). The intake air temperature is detected at the same time by an integrated NTC resistor. Square-shaped plug connector.

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