ENGINE COOLANT

E-4prose procedure

PREPARATION

SST

SST (Special Service Tools)

Part number	Name	Usage
49 9200 145	Adapter set, radiator cap tester	For inspection of cooling system pressure
49 9200 146	Adapter A (Part of 49 9200 145)	For inspection of cooling system pressure

49 9200 145

NameAdapter set, radiator cap tester

UsageFor inspection of cooling system pressure

49 9200 146

NameAdapter A (Part of 49 9200 145)

UsageFor inspection of cooling system pressure

INSPECTION

WARNING

• Never remove the radiator cap while the engine is hot. • Wrap a thick cloth around the cap when removing it. • When removing the radiator cap, loosen it slowly to the first stop until the pressure in the radiator is released, and then remove it.

Coolant Level (Engine cold)

1
Verify that the coolant level is near the radiator filler neck.
05U0EX-006
2
Verify that the coolant level in the coolant reservoir is between the FULL and LOW marks. Add coolant if necessary.

Coolant Quality

1
Verify that there is no buildup of rust or scale around the radiator cap or radiator filler neck.
05U0EX-007
2
Verify that coolant is free of oil. Replace the coolant if necessary.

Coolant Leakage

1
Connect a radiator tester (commercially available) and the SST to the radiator filler neck.
05U0EX-008
2
Apply 103 kPa (1.05 kg/cm², 15 psi) pressure to the system.
3
Verify that the pressure is held. If not, check for coolant leakage.

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