e60 520 2004 m54 水箱

k850tw · 2019-04-08, 10:06 AM

水箱精濃度太高也不好，以下參考TIS的說明
Prescribed mixture for coolant:

50 % antifreeze for antifreeze protection up to -38 °C

The original coolant mixture for the initial filling at the factory has this antifreeze-to-water ratio.
If the proportion of antifreeze is less than 40 % to -29 °C (i.e. the water content is higher than 60 %), not only the degree of protection against freezing, but also corrosion protection is reduced. When the water content is too high, this can lead to premature excess temperature in very hot weather or hot climates and as a consequence lead to coolant being ejected out of the system and damage to the engine through excess temperature.
This means that it is essential that an antifreeze and corrosion inhibitor is added even in the tropics.
Too high a concentration, more than 55 % down to -47°C, leads to deterioration of the cooling properties (heat transfer) and protection against freezing-up is modified in the opposite direction, i.e. it also deteriorates.

The amounts of screenwash required for protection against freezing are stated (percentage values) on the containers.

2019-04-08, 10:06 AM	#1
k850tw 正式會員註冊日期: 2018-02-15 文章: 218 精華: 0 車型: 530 贊助: 未贊助	水箱精濃度太高也不好，以下參考TIS的說明 Prescribed mixture for coolant: 50 % antifreeze for antifreeze protection up to -38 °C The original coolant mixture for the initial filling at the factory has this antifreeze-to-water ratio. If the proportion of antifreeze is less than 40 % to -29 °C (i.e. the water content is higher than 60 %), not only the degree of protection against freezing, but also corrosion protection is reduced. When the water content is too high, this can lead to premature excess temperature in very hot weather or hot climates and as a consequence lead to coolant being ejected out of the system and damage to the engine through excess temperature. This means that it is essential that an antifreeze and corrosion inhibitor is added even in the tropics. Too high a concentration, more than 55 % down to -47°C, leads to deterioration of the cooling properties (heat transfer) and protection against freezing-up is modified in the opposite direction, i.e. it also deteriorates. The amounts of screenwash required for protection against freezing are stated (percentage values) on the containers.