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Sensor Operating Range Charts: Diesel

NOTE: Information applies only to E300 diesel.
COOLANT TEMPERATURE SENSOR SPECIFICATIONS (1)

Coolant Temperature Ohms
68°F (20°C) 3100
104°F (40°C) 315
(1) Some models use a 4-pin sensor. Measure across 2 terminals diagonally. See Fig 1 .
Fig 1: Identifying 4-Pin Coolant Temperature Sensor Terminals
G97J06228Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
FUEL TEMPERATURE SENSOR SPECIFICATIONS (1)

Fuel Temperature Ohms
68°F (20°C) 2500
104°F (40°C) 1170
(1) Specifications may vary slightly.
INTAKE AIR TEMPERATURE SENSOR SPECIFICATIONS (1)

Intake Air Temperature Ohms
68°F (20°C) 6000
104°F (40°C) 2600
(1) Specifications may vary slightly.
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