Checking Cooling System For Leaks

CAUTION: The cylinder head gasket is not watertight until the engine has reached operating temperature, in other words until a swelling operation has taken place. For this reason, the cooling system MUST NOT be pressure tested until after the engine has reached operating temperature.

1. Turn cap as far as detent 1 and release pressure, then turn as far as detent 2 and remove cap.
2. Take off cap.

NOTE: The cap must not be opened unless the coolant temperature is below 90° C.

3. Check coolant level and adjust to correct level.
- Pour in coolant up to the separation line between top part of expansion reservoir (black) and bottom part of reservoir (transparent).





4. Pressurize cooling system to about 1.4 bar with the test cap and the tester.
5. Examine all the cooling and heating water hoses and their connection points for loss of coolant.
6. Check condition of coolant hoses and hose clips; replace or re-tighten if necessary.