REMOVAL AND INSTALLATION


Pre-removal Operation
  • Engine Cover Removal.
  • Engine Coolant Draining.

 Post-installation Operation
  • Engine Coolant Refilling.
  • Engine Cover Installation.

Front side

Removal steps


·
 Vacuum hose connection (Refer to GROUP 11F - Solenoid Valve and Vacuum Hose ).


·
 By-pass hose connection


1.
 Water hose G


2.
 Hose protector


3.
 Water hose G


4.
 Water pipe C


5.
 Water pipe D

>>D<<
 6.
 Water pipe gasket

Exhaust side

Removal steps


·
 Catalytic converter (Refer to GROUP 17 - Emission Control, Catalytic Converter).


1.
 Water hose C


·
 Heater piping hose connection (Refer to GROUP 55A - Heater Hose).


2.
 Water pipe A


3.
 Water by-pass pipe B

>>B<<
 4.
 O-ring

Inlet side

Removal steps


·
 Battery tray stay (Refer to GROUP 54A - Battery).


·
 Oil level gauge guide (Refer to GROUP 15 - Inlet Manifold).
<<A>>
 >>C<<
 1.
 Engine coolant temperature sensor


2.
 Water hose D


3.
 Water hose B


·
 Heater piping hose connection (Refer to GROUP 55A - Heater Hose).


4.
 Water pipe B


·
 EGR cooler (Refer to GROUP 17 - Emission Control, EGR Valve and EGR Cooler ).


5.
 Water hose E


6.
 Water hose J


7.
 Water pipe E


8.
 Water by-pass hose


9.
 Water by-pass pipe A

>>B<<
 10.
 O-ring


11.
 EGR cooler bracket


12.
 Water hose I


13.
 Water hose H


14.
 Water hose A


15.
 Water outlet fitting

>>A<<
 16.
 Water outlet fitting gasket

REMOVAL SERVICE POINT

<<A>> ENGINE COOLANT TEMPERATURE SENSOR REMOVAL

Use special tool water temperature sensor wrench (MB992042) to remove the engine coolant temperature sensor.

INSTALLATION SERVICE POINTS

>>A<< WATER OUTLET FITTING GASKET INSTALLATION

Install the water outlet fitting gasket as its projection is in the direction shown.

>>B<< O-RING INSTALLATION
caution Avoid adhesion of engine oil or grease to the O-ring.
Fit the O-ring in the water by-pass pipe groove, wet the O-ring circumference or the pipe mounting area inner wall, and then insert the O-ring.

>>C<< ENGINE COOLANT TEMPERATURE SENSOR INSTALLATION
1.
caution Be careful not to damage the connector portion (made of resin) of the sensor with the tool.
Remove any sealant that may be remaining on the engine coolant temperature sensor or the threaded hole in the water outlet fitting.

2.Apply the sealant to the thread of engine coolant temperature sensor.
Specified sealant: ThreeBond 1324N or equivalent
3.In the same manner as for removal, using special tool water temperature sensor wrench (MB992042), tighten to the specified torque.
Tightening torque: 30 ± 9 N·m

>>D<< WATER PIPE GASKET INSTALLATION

The tab on the water pipe gasket should be position as shown.