Expansion barrel markings
The level is checked by the marks on the expansion tank.
Procedure for restoring the liquid level
1. With the engine cold, unscrew the radiator cap.
2. Add fluid to the top and start the engine. Warm up the engine until the thermostat opens and add fluid again to the top of the neck.
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3. Wrap the radiator cap and add fluid to the barrel (photo on the left). In the photo on the right is the brake master cylinder reservoir and level marks.
4. Restore fluid level.