![](../../../img/13/AK802391AB00ENG.png)
![](../../../img/13/AK701709AB00ENG.png)
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1.Remove the engine coolant
temperature sensor using the special tool engine coolant
temperature sensor wrench (MB992042).
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![](../../../img/13/AK701710AA00ENG.png)
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2.With temperature sensing
portion of engine coolant temperature sensor immersed in hot
water, check resistance. Standard
value:
14 - 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)
3.If the resistance
deviates from the standard value greatly, replace the
sensor.
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![](../../../img/13/AK701711AB00ENG.png)
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4.Apply the sealant over the
screw sections on the engine coolant temperature
sensor. Specified sealant:
LOCTITE 262, Three bond 1324N or
equivalent
5.Tighten the engine
coolant temperature sensor to the specified torque, using
engine coolant temperature sensor wrench, special tool
(MB992042). Tightening torque: 30 ± 9
N·m
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