Removal and Installation

REMOVAL AND INSTALLATION













Required Special Tool:

- MB992042: Water Temp Sensor Wrench

REMOVAL SERVICE POINTS

[[A]] RADIATOR UPPER HOSE DISCONNECTION





Make mating marks on the radiator upper hose and the hose clamp as shown to install them in the original position. Then, remove them.

[[B]] FUEL HIGH-PRESSURE HOSE DISCONNECTION













1. Follow the steps below to unlock the fuel high-pressure hose connector.
(1) Insert a flat-tipped screwdriver [6 mm (0.24 inch) wide and 1 mm (0.04inch) thick] into the retainer of the fuel high-pressure hose connector.
(2)

CAUTION:
When pushing up the retainer of the fuel high-pressure hose connector, pay attention to avoid damage to the retainer.

Turn the flat-tipped screwdriver inserted into the retainer by 90 degrees angle to push up the retainer and unlock the fuel high-pressure hose connector.
2. Remove the fuel high-pressure hose.

[[C]] ENGINE COOLANT TEMPERATURE SENSOR REMOVAL





Use special tool MB992042 to remove the engine coolant temperature sensor.

INSTALLATION SERVICE POINTS

]]A[[ ENGINE COOLANT TEMPERATURE SENSOR INSTALLATION





1. Apply sealant to the engine coolant temperature sensor thread.
Specified sealant: Three bond 1324N or equivalent
NOTE:
Install the engine coolant temperature sensor immediately after applying sealant.





2.
CAUTION:
After the installation, until a sufficient period of time (one hour or more) elapses, do not apply the oil or water to the sealant application area or start the engine.

Use special tool MB992042 to tighten the engine coolant temperature sensor to the specified torque.
Tightening torque: 30± 9Nm (22± 7 ft-lb)


]]B[[ FUEL HIGH-PRESSURE HOSE CONNECTION





1.
CAUTION:

- When pushing in the retainer of the fuel high-pressure hose connector, pay attention to avoid damage to the retainer.
- After the installation of the fuel high-pressure hose, slightly pull the fuel high-pressure hose to check that it is connected securely. At this time, also check that there is approximately 1 mm (0.04inch) play.

Securely insert the fuel rail stopper into the fuel high-pressure hose connector groove to install the fuel high-pressure hose to the fuel rail.
2. Push in the retainer of the fuel high-pressure hose connector to lock the fuel high-pressure hose and fuel rail.

]]C[[ O-RING INSTALLATION





CAUTION:
Avoid adhesion of engine oil or grease to the O-ring.

Fit the O-ring in the water pump inlet pipe groove, wet the O-ring circumference or the pipe mounting area inner wall, and then insert the O-ring.

]]D[[ RADIATOR UPPER HOSE CONNECTION





1. Insert radiator upper hose as far as the projection of the cooling water outlet hose fitting.
2. Align the mating marks on the radiator hose and hose clamp, and then connect the radiator hose.