3 Point Coolant Bleed Procedure
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1. Ensure all hose connections are tight following any engine repair or service coolant drain.
2. Locate the inlet manifold bleed valve (green color circled on the picture) and remove bleed hose from valve. Connect a suitable tube to the valve spout and blow through to ensure valve pin is not sticking. Remove tube from valve spout, refit bleed hose and secure with clip.
NOTE: Inlet manifold bleed valve pins are prone to sticking to their seats, freeing this pin will allow air to bleed from the cylinder head during coolant fill.
3. Turn heater temperature control to maximum heat position.
4. Remove bleed screw and sealing washer from the radiator and open heater bleed nipple (yellow and red circled on the picture).
5. Prepare coolant to required concentration.
6. Fill system slowly until a steady flow of coolant is emitted from the bleed point.
7. Refit radiator bleed screw an tighten to 5 Nm, Tighten bleed heater nipple to 7 Nm
8. Continue filling system until coolant level reaches the expansion tank neck.
9. Models with A/C; Ensure air conditioning is switched off.
10. With expansion tank cap off, start and run engine at 1500 – 2500 rev/min. Fill expansion tank as necessary to maintain coolant level just below expansion tank neck. When coolant starts to rise up expansion tank neck, due to heat expansion, fit expansion tank cap.
11. Continue running engine at 1500 – 2500 rev/min until cooling fan comes on, then run engine at idle speed until cooling fan stops.
12. Switch off engine and allow to cool for 30 minutes.
13. Check cooling system for leaks.
14. Remove expansion tank cap and, if necessary, top-up coolant to MAX level.
WARNING: Do not remove the filler cap from the coolant expansion tank while the system is hot.
15. Refit expansion tank cap.
Additional bleed
16. Allow engine to cool.
17. Release clip and remove inlet air hose from throttle housing.
18. Top-up the expansion tank.
19. Remove bleed screw from radiator return rail (blue circled on the picture).
20. When a constant flow of coolant is being emitted from bleed point, fit bleed screw and tighten to 9 Nm.
21. Fit inlet hose throttle housing and secure with clip.
22. Check level of coolant, top-up to ‘MAX’ mark on expansion tank if necessary.
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