COOLANT TEMPERATURE SENSOR CHECK AND REPLACEMENT


1.Remove the luggage compartment floor carpet.

2.Remove the electric motor unit inspection lid.

3.Disconnect the coolant temperature sensor connector.

4.Use the coolant temperature sensor wrench (special tool: MB992042) to remove the coolant temperature sensor.

5.While immersing the temperature sensing part of coolant temperature sensor into hot water, measure the resistance between connector terminals.
Standard value:
    14 to 17 kΩ (at -20°C)
    5.1 - 6.5 kΩ (at 0°C)
    2.1 - 2.7 kΩ (at 20°C)
    0.9 - 1.3 kΩ (at 40°C)
    0.48 - 0.68 kΩ (at 60°C)
    0.26 - 0.36 kΩ (at 80°C)
6.If not within the standard value, replace the coolant temperature sensor.
7.Remove the sealant adhering to the coolant temperature sensor and to the inverter.

8.Apply sealant to the coolant temperature sensor thread.
Sealant: Loctite 262 or equivalent
note After the sealant application, promptly mount the coolant temperature sensor.

9.
caution Until a sufficient period of time (one hour or more) elapses after the mounting of part, do not contact the oil or water to the application area. Also, do not activate the electric motor unit.
As with the removal, use the coolant temperature sensor wrench (special tool: MB992042) to tighten the coolant temperature sensor to the specified torque.
Tightening torque : 30 ± 9 N·m
10.Connect the coolant temperature sensor connector.
11.Install the electric motor unit inspection lid.
12.Install the luggage compartment floor carpet.




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