Correcting anticorrosion/antifreeze concentration

AP20.00-D-2010-01R

Correcting anticorrosion/antifreeze concentration

Engine

646.7 in model 909

 Engine cooling

Number

Designation

Engine 646.701 in model 909

BF20.00-N-1001-01A

Coolant

Total filling capacity

Liter

7,2

Corrosion/antifreeze down to -37 °C

Liter

3,6

Corrosion/antifreeze down to -45 °C

Liter

4

Sheet

BB00.40-P-0310-01A

Sheet

BB00.40-P-0325-00A

Sheet

BB00.40-P-0325-05A

Sheet

-

Comparison table: (approx.) antifreeze protection in °C compared to anti-corrosion agent or antifreeze concentration in volume %

°C

vol %

°C

vol %

°C

vol %

- 10

20

- 20

32

- 30

42

- 15

26

- 25

37

- 33

45

- 18

30

- 27

40

- 37

50

Calculation table for refill quantity

A

Determined anti-corrosion or antifreeze agent concentration

B

Coolant fill quantity, total

C

Required refill quantity

1

Enter determined anti-corrosion agent or antifreeze concentration (A) in the calculation table.

 According to the comparison table, a measured antifreeze protection of up to 20 °C corresponds to a determined anti-corrosion agent or antifreeze concentration (A) of 32 Vol.-%. For a total coolant fill quantity (B) of 8.5 l, the calculated refill quantity (C) is 2.25 l.
Commercially available tools
Antifreeze tester.

2

Take total antifreeze fill quantity (B) from base data table   and enter in the calculation table.

3

Calculate required refill quantity (C) of the anti-corrosion agent and/or antifreeze with the calculation table.

4

Drain a quantity of coolant from the radiator drain screw which corresponds to the required refill quantity (C).

5

Fill the required refill quantity (C) of the anti-corrosion agent or antifreeze into the cooling system.

6

Start engine and run for about 1 minute at varying speeds.