Mercedes W220
+ Mercedes-Benz cars of the class S (W220)
+ Operation manual
+ Routine maintenance
+ Engine
- Cooling system and heating
+ Cooling system
+ Systems of ventilation, heating and air conditioning
+ Power supply system and release
+ Engine electric equipment
+ Automatic transmission
+ Power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schemes of electric equipment
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Cooling system and heating
General parameters
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Separate characteristics are provided also in the text of the Head and in case of obligation of their performance are highlighted in bold type |
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Design
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Thermosiphon with the bladed water pump. Thermostatic adjustment. With a separate broad tank. The fan with the electric drive, joins and switched off by a two-level thermoswitch |
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Cooling liquid
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Mix of soft water and antifreeze (1:1), at such structure is provided frost resistance to –35 °C |
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Antifreeze
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MB No. Q1 03 0002
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Volume of system, l
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12 l
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Composition of cooling liquid:
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| Antifreeze share in cooling liquid for ensuring frost resistance |
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50%
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55%
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Pressure in system
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About 1.2 bars (the exact size is specified on a cover расширительнго a tank). The cover has to maintain pressure within two minutes. |
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Thermostat
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| Valve stroke |
not less than 7 mm
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Beginning of opening
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82 °
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Full opening
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96 °
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Beginning of opening
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92 °
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Full opening
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99 °
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Beginning of opening
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87 °
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Full opening
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102 °
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Fan thermoswitch
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| Inclusion/switching off of the 1st step |
92-97/84-91 °C
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| Inclusion/switching off of the 2nd step |
99-105/91-98 °C
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Conditioner coolant
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| Type |
R134a (do not use R12)
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| Volume, гр. |
± 15
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Refrigerator oil
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| Type |
PAG
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| Volume, cm 3
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200
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| Efforts of tightening of threaded connections, H • m
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| The moments of an inhaling of fixture are given in the text of the Head and on some illyustratsiyakh*. |
| * The moments of an inhaling highlighted in the text in bold type are subject to exact observance; the efforts which are not highlighted in bold type are given only approximately |
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