Checking Cooling System For Leaks
TESTING SYSTEM FOR LEAKS1. Open pressure cap to detent 1 to release system pressure, then turn as far as detent 2 and remove cap.
WARNING: The pressure cap must not be opened unless the coolant temperature is below 90°C (194°F).
2. The coolant level must extend up to the marking on the expansion tank.
3. Pressurize cooling system to approx. 1.4 bar (20 psi) with the tester 124 589 15 21 00, or equivalent.
4. Check all cooling and heating water hoses and their connection points for loss of coolant.
5. Check condition of coolant hoses and hose clips; retighten or replace if necessary.