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Cooling System, Top Up And Bleed (Z 17 DTH, With
Air Conditioning, LHD)
Inspect
| 1. |
Only use 19 40 650 / 9194431 anti-freeze (red) 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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Important: Vehicle with air
conditioning: switch air conditioning off and set to ECO mode if
vehicle has ECC
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| 5. |
Open cooling system
Warning: Cooling system is
pressurised
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| • |
Unscrew coolant compensation tank cover
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| 6. |
Top up coolant to lower degassing line (1) at coolant
compensation tank
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| 7. |
Close cooling system
| • |
Screw in coolant compensation tank cover
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| 8. |
Start engine and allow to warm up
| • |
Allow engine to warm up at idle speed of up to 2500 rpm until
radiator fan setting 1 is enabled
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| 9. |
Bleed cooling system
| • |
Allow engine to run at 2000 to 2500 rpm for approx. 2
minutes
Note: The air is
removed from the cooling system via the degassing lines
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| 10. |
Turn off engine and allow to cool
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| 11. |
Check coolant level and top up to "KALT/COLD" mark with coolant
if necessary
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