![](../../../img/13/ACE01790AB00ENG.png)
![](../../../img/13/ACE02813AB00ENG.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/AKX01622AA00ENG.png)
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2.With temperature sensing
portion of engine coolant temperature sensor immersed in hot
water, measure the resistance between connector
terminals. 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/ACE02808AC00ENG.png)
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4.Apply the sealant over the
screw sections on the engine coolant temperature
sensor. Specified
sealant:
ThreeBond 1324N or
equivalent
5.With the special
tool engine coolant temperature sensor wrench (MB992042)
tighten
the engine coolant temperature sensor to the specified
torque. Tightening torque: 30 ± 9
N·m
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