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Cooling System, Top Up and Bleed (Z 18 XE)
Inspect
| 1. |
Only use 19 40 650 (09 194 431) anti-freeze and ensure a
concentration of 50% water and 50% anti-freeze. The purpose of
anti-freeze is not only to protect the entire cooling system
against freezing but also to protect all coolant-affected parts
against corrosion and lime deposit. For this reason, anti-freeze
must be used even in tropical regions.
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| 2. |
The water quality also plays an important role in addition to
the mix ratio. Water of drinkable quality usually meets these
requirements. The quality of purified sea water is inadequate!
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| 3. |
Damage may also be caused to the engine if unauthorised
anti-freeze agent is used.
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| 4. |
If radiator, cylinder head or cylinder head seal have been
replaced the old coolant must not be re-used.
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| 5. |
Open cooling system
| • |
Unscrew cover of coolant compensation tank
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| 6. |
Top up coolant to the KALT/COLD mark
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| 7. |
Close cooling system
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Close cover of coolant compensation tank
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| 8. |
Allow the engine to idle until the thermostat opens
Note: Cooling system
bleeds automatically during warm-up phase
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| 10. |
Check coolant level.
| • |
If necessary, top up coolant to the KALT/COLD mark
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