coolant capacity AUDI A4 2000 B5 / 1.G APB Engine Cooling System Components
Page 23 of 34
19-22
      
The coolant concentration should not be 
reduced by adding plain water, even in warmer 
seasons and in warmer countries. The 
concentration must be at least 40 %. 
     If extra antifreeze protection is required in cold 
climates, the concentration of G 12 can be 
increased, but only up to a maximum of 60 % 
(frost protection to about -40 C); if this 
concentration is exceeded, the antifreeze 
protection will be reduced again and cooling 
effectiveness will also be impaired. 
     
Do not reuse the old coolant if the radiator, heat 
exchanger, cylinder head or cylinder head 
gasket have been replaced. 
      Recommended mixture ratios:  
     
Frost 
protection 
to  Antifreeze 
concentration  G 
12
1)  Water
1)  
-25 C  
-35 C  
40 %  
50 %  2.5 
ltr.  
3.0 
ltr.  3.5 ltr.  
3.0 ltr.  
     
1) The capacity of the cooling system can vary 
depending on the equipment installed on the 
Pa
ge 23 of 34 Coolin
g system com
ponents, removin
g and installin
g
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