Fig. 32: Identifying Refractometer Scales
Courtesy of VOLKSWAGEN UNITED STATES, INC.
The scale - 1 - of the refractometer is designed for coolant additives G 12; G12 Plus and G11.
Scale - 2 - refers only to coolant additive G 13. (previously L80)
T10007 (operating instructions).
NOTE:
The freeze protection must be ensured to approximately -13 ° F [-25 ° C].
If for climatic reasons greater freeze protection is required, the amount of
G 12 Plus can be increased, but only up to 60% (freeze protection to about
-40 ° F [-40 ° C]), otherwise freeze protection and cooling effectiveness will
be reduced.
If freeze protection is insufficient, drain off required quantity shown in
freeze protection table and add coolant additive G 12 Plus.
NOTE:
Observe waste disposal regulations!
Freeze protection to ° C
Difference amount in liters
Actual value
Specified value
4-cylinder engines
6-cylinder engines
8-cylinder engines
0
-25
3.5
5,0
5,0
-35
4.0
6.0
6.0
-5
-25
3.0
4.5
4.5
-35
3.5
5.5
5.5
-10
-25
2.0
3.5
3.5
-35
3,0
4.5
4.5
-15
-25
1.5
2.5
2.5
-35
2.0
3.5
3.5
-20
-25
1.0
1.5
1.5
-35
1.5
2.5
2.5
2008 Audi A6 Quattro
Maintenance Maintenance Procedures
FIXYOURCAR
2:27:39 AM
Page 29
